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    Lenovo Yoga C940 (14) review – a premium 2-in-1 rocking Intel’s Ice Lake processors

    LaptopMedia.comReviewsLenovo Yoga C940 (14) review - a premium 2-in-1 rocking Intel's Ice Lake processors

    From: Alex Iliev & Kroum Nikolov 6 November 2019 / 08:46 | 1

    PLEASE WHITELIST US. If it weren’t for the ads, LaptopMedia wouldn’t be running.
    Our articles are free to read but the equipment in our Labs isn’t. We want to be as objective and unbiased as possible, and you can help us keep our jobs by whitelisting our media in your adblocker.

    So every brand of a certain product has its flagship series. It doesn’t matter if we are talking about laptops, computers, smartphones or hair driers. This drives us to one of the highest levels of Yoga laptops you can find on the market right now – the Yoga C940 (14).

    It has an astonishing aluminum build, a pen that is stored inside of the chassis, as well as the now-signature soundbar, that we saw on the last-year model – the Yoga C930 (14). There is something new, however, that raises a lot of questions and excitement. It is the processor line-up. Similarly to the Yoga S740 that we reviewed a while back, this device ships with the Ice Lake Intel CPUs – Core i5-1035G4 and the Core i7-1065G7.

    Additionally, it is embodying the same crazy fast memory as the Yoga S740 as well – 3733 MHz of LPDDR4X. On the display side, obviously, there is a touchscreen panel, which can either be a 1080p one or a 4K, both of which are IPS models.

    You can check the prices and configurations in our Specs System: https://laptopmedia.com/series/lenovo-yoga-c940-14/

    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 512GB SSD
    • 12GB RAM
    $1069.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 512GB SSD
    • 16GB RAM
    $1077.99
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 512GB SSD
    • 12GB RAM
    $1083.98
    More Info Buy from Amazon
    #CommissionsEarned
    View more laptops...

    Contents

    1. Specs Sheet
    2. What’s in the box?
    3. Design and construction
    4. Disassembly, upgrade options and maintenance
    5. Display quality
    6. Health impact – PWM / Blue Light
    7. Buy our profiles
    8. Sound
    9. Drivers
    10. Battery
    11. CPU options
    12. GPU options
    13. Gaming tests
    14. Temperatures and comfort
    15. Verdict

    Specs Sheet

    Lenovo Yoga C940 (14″) - Specs

    CPU
    Intel Core i7-1065G7 69 Intel Core i5-1035G4 87
    GPU
    Intel Iris Plus Graphics G7 133 Intel Iris Plus Graphics G4 147
    Display
    14.0”, Full HD (1920 x 1080), IPS
    14.0”, 4K UHD (3840 x 2160), IPS
    HDD/SSD
    up to 4000GB SSD + up to 544GB HDD
    M.2 Slot
    1x 2280 PCIe NVMe 3.0 x4 See photo
    RAM
    up to 16GB
    OS
    Windows 10 Home, Windows 10 Pro
    Battery
    60Wh, 4-cell, 70Wh, 4-cell, 60Wh
    Dimensions
    320.3 x 215.6 x 14.5-15.7 mm (12.61" x 8.49" x 0.57")
    Weight
    1.35 kg (3 lbs)
    Body material
    Aluminum
    Ports and connectivity
    • 2x USB Type-C 3.2 Gen 2 (10 Gbps), Thunderbolt 3, Power Delivery (PD), DisplayPort
    • 1x USB Type-A 3.2 Gen 2 (10 Gbps)
    • Wi-Fi 802.11ac
    • Bluetooth 5.0
    • Audio jack 3.5 mm combo
    Features
    • Fingerprint reader
    • Web camera
    • Backlit keyboard
    • Microphone 2 x far-field microphones
    • Speakers Rotating Sound Bar, Dolby Atmos
    • Optical drive
    • Security Lock slot
    Keyboard / Dock(Convertible)
    Weight
    0.00
    Ports and connectivity
    • USB
    Features

    All Lenovo Yoga C940 (14″) configurations

    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 12GB RAM
    $1069.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 16GB RAM
    $1077.99
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 12GB RAM
    $1083.98
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 12GB RAM
    $1088.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 12GB RAM
    $1089.86
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 12GB RAM
    $1090.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 12GB RAM
    $1189.86
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 12GB RAM
    $1198.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 12GB RAM
    $1209.99
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 12GB RAM
    $1299.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 02000GB SSD
    • 12GB RAM
    $1366.99
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i5-1035G4
    • Intel Iris Plus Graphics G4
    • 0256GB SSD
    • 8GB RAM
    $1384.95
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 16GB RAM
    $1389.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 16GB RAM
    $1457.88
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 16GB RAM
    $1509.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1509.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1539.64
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 02000GB SSD
    • 12GB RAM
    $1549.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 16GB RAM
    $1549.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 16GB RAM
    $1549.98
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1589.64
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 0512GB SSD
    • 16GB RAM
    $1599.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1649.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1697.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1759.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1859.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1909.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1949.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 02000GB SSD
    • 16GB RAM
    $1959.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $1997.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 02000GB SSD
    • 16GB RAM
    $2109.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 02000GB SSD
    • 16GB RAM
    $2209.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 02000GB SSD
    • 16GB RAM
    $2299.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 04000GB SSD
    • 16GB RAM
    $2359.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 04000GB SSD
    • 16GB RAM
    $2399.99
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 04000GB SSD
    • 16GB RAM
    $2459.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 01000GB SSD
    • 16GB RAM
    $2499.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 04000GB SSD
    • 16GB RAM
    $2509.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 04000GB SSD
    • 16GB RAM
    $2549.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 04000GB SSD
    • 16GB RAM
    $2609.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 04000GB SSD
    • 16GB RAM
    $2699.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 02000GB SSD
    • 16GB RAM
    $2699.00
    More Info Buy from Amazon
    #CommissionsEarned
    See all Lenovo Yoga C940 (14) review – a premium 2-in-1 rocking Intel’s Ice Lake processors configurations

    What’s in the box?

    Inside the package, you are going to find a 65Wh power adapter, as well as the laptop and some mandatory manuals. As we said, this laptop comes with a built-in pen, which is “garaged” into the chassis.

    Design and construction

    Here, we are talking about a high-quality build. The entirety of the body is built out of aluminum. While everything looks super sleek, there is one thing that shines above all (literally) – the soundbar. Mainly on the silver model, the bar looks chromed and gives the Yoga C940 (14) a hint of extra exclusivity. As expected from a 14-inch convertible, it is extremely easy to carry it around with its 1.35 kg weight and profile of 14-15mm.

    Interestingly, the lid opens easily with a single hand and then is able to go all the way around for an almost flush finish with the back of the device. You can notice that no matter in what direction you have converted the device, the soundbar is always firing towards you. Isn’t that insane?

    On the base, there is the keyboard, which is hardly going to be the most popular input device on this machine. Nevertheless, it is pretty comfortable with its relatively big keycaps and clicky feedback, while the travel is shorter than what we would like. Further below, the touchpad has a glass cover and feels fast and responsive. The same can be said about the fingerprint reader.

    How about the “garaged” Pen this laptop comes with. Well, it is pretty good from a non-artist perspective. Also, the display is pretty fast to respond with the input from the Pen, while the palm-rejection software does its job in a great way. However, something was not right. We found it extremely difficult to draw a straight line with this thing. There was something with the detection of the Pen input that was making the pointer to flicker, similarly to drawing on MS Paint with a mouse.

    Speaker-wise, this laptop has 4 of them. Two are placed at the bottom plate and two are hidden in the “soundbar”, which greatly improves the sound quality of this machine.

    Ports

    In terms of I/O, there is not much to choose from. It is all situated on the left side and consists of a single USB Type-A 3.1 (Gen. 2) port, two Thunderbolt 3.0 connectors, that can be used for charging, as well as one audio combo jack. Optionally, you can receive some dongles inside the box. By the way, on the right side, you can see the power on/off switch, which is surprisingly tactile when pressed.

    Disassembly, upgrade options and maintenance

    Similarly to what HP has done with some of their laptops, you need a little bit more effort in order to remove the bottom plate of this notebook. First, remove the back rubber foot, as it hides three Phillips-head screws. After you unscrew them, you can undo the other four Torx-head screws and then pry the panel with a plastic tool.

    Immediately, you see two fans – one big and one small, which cool down two heat pipes – one big… and one small. They are both cooling the processor, as we expect to see a more powerful GPU, despite the smaller process node.

    In terms of upgradability, the Yoga C940 (14) clearly sucks. On the bright side, you can configure the laptop with up to 16GB of LPDDR4X memory (which we recommend), the speed of which is out of this world – 3733 MHz. Then, there is a single M.2 slot that supports PCIe x4 NVMe drives.

    Lastly, the battery seems unchanged from the Yoga C930 (14) and is a 60Wh unit – one of the biggest on a 14-inch laptop.

    Display quality

    Lenovo Yoga C940 (14) has a Full HD touchscreen display, model number LG LP140WF9-SPE2. Its diagonal is 14″ (35.56 cm), and the resolution – 1920 х 1080. Additionally, the screen ratio is 16:9, the pixel density – 157 ppi, their pitch – 0.161 x 0.161 mm. The screen can be considered Retina when viewed from at least 56 cm (from this distance, the average human eye can’t see the individual pixels).

    Its viewing angles are excellent. We have provided images at 45 degrees to evaluate quality.

    The maximum measured brightness is 386 nits (cd/m2) in the middle of the screen and 369 nits (cd/m2) average across the surface with a maximum deviation of 10%. The Correlated Color Temperature on a white screen and at maximum brightness is 7200K (average) – colder than the 6500K optimum for sRGB. The average color temperature through the grey scale before profiling is again 7100K.
    In the illustration below you can see how the display performs from a uniformity perspective.
    Values of dE2000 over 4.0 should not occur, and this parameter is one of the first you should check if you intend to use the laptop for color-sensitive work (a maximum tolerance of 2.0 ). The contrast ratio is very good – 1900:1 (1600:1 after profiling).

    To make sure we are on the same page, we would like to give you a little introduction to the sRGB color gamut and the Adobe RGB. To start, there’s the CIE 1976 Uniform Chromaticity Diagram that represents the visible specter of colors by the human eye, giving you a better perception of the color gamut coverage and the color accuracy.

    Inside the black triangle, you will see the standard color gamut (sRGB) that is being used by millions of people in HDTV and on the web. As for the Adobe RGB, this is used in professional cameras, monitors, etc for printing. Colors inside the black triangle are used by everyone and this is an essential part of the color quality and color accuracy of a mainstream notebook.

    Still, we’ve included other color spaces like the famous DCI-P3 standard used by movie studios, as well as the digital UHD Rec.2020 standard. Rec.2020, however, is still a thing of the future and it’s difficult for today’s displays to cover that well. We’ve also included the so-called Michael Pointer gamut, or Pointer’s gamut, which represents the colors that naturally occur around us every day.

    The yellow dotted line shows Lenovo Yoga C940 (14)’s color gamut coverage.

    Its display covers 94% of the sRGB/ITU-R BT.709 (web/HDTV standard) in CIE1976.

    Our “Design and Gaming” profile delivers optimal color temperature (6500K) at 140 cd/m2 luminance and sRGB gamma mode.

    We tested the accuracy of the display with 24 commonly used colors like light and dark human skin, blue sky, green grass, orange, etc. You can check out the results at factory condition and also, with the “Design and Gaming” profile.

    Below you can compare the scores of Lenovo Yoga C940 (14) with the default settings (left), and with the “Gaming and Web design” profile (right).

    The next figure shows how well the display can reproduce dark parts of an image, which is essential when watching movies or playing games in low ambient light.

    The left side of the image represents the display with stock settings, while the right one is with the “Gaming and Web Design” profile activated. On the horizontal axis, you will find the grayscale and on the vertical axis – the luminance of the display. On the two graphs below you can easily check for yourself how your display handles the darkest nuances but keep in mind that this also depends on the settings of your current display, the calibration, the viewing angle, and the surrounding light conditions.

    Response time (Gaming capabilities)

    We test the reaction time of the pixels with the usual “black-to-white” and “white-to-black” method from 10% to 90% and vice versa.

    We recorded Fall Time + Rise Time = 29 ms

    Health impact – PWM / Blue Light

    PWM (Screen flickering)

    Pulse-width modulation (PWM) is an easy way to control monitor brightness. When you lower the brightness, the light intensity of the backlight is not lowered, but instead turned off and on by the electronics with a frequency indistinguishable to the human eye. In these light impulses, the light/no-light time ratio varies, while brightness remains unchanged, which is harmful to your eyes. You can read more about that in our dedicated article on PWM.

    Thankfully, Lenovo Yoga C940 (14)’s display is free from flickerings. This means you will be able to work all day on your laptop, without experience any eyestrain, at least in this aspect.

    Blue light emissions

    Installing our Health-Guard profile not only eliminates PWM but also reduces the harmful Blue Light emissions while keeping the colors of the screen perceptually accurate. If you’re not familiar with the Blue light, the TL;DR version is – emissions that negatively affect your eyes, skin and your whole body. You can find more information about that in our dedicated article on Blue Light.

    Conclusions

    Lenovo Yoga C940 (14)’s display is a touchscreen, has a Full HD resolution, good contrast ratio, comfortable viewing angles, and wide color coverage. Moreover, its backlight doesn’t use PWM to adjust the screen brightness, while the color accuracy becomes incredibly high when you install our Gaming and Web design profile.

    Buy our profiles

    Since our profiles are tailored for each display model, this article and its respective profile package are meant for Lenovo Yoga C940 (14) configurations with 14.0″ LG LP140WF9-SPE2 (FHD, 1920 × 1080) IPS panel.

    *Should you have problems with downloading the purchased file, try using a different browser to open the link you’ll receive via e-mail. If the download target is a .php file instead of an archive, change the file extension to .zip or contact us at [email protected]

    Read more about the profiles HERE.

    In addition to receiving efficient and health-friendly profiles, by buying LaptopMedia's products you also support the development of our labs, where we test devices in order to produce the most objective reviews possible.

    Office Work - screen profile

    Office Work

    Office Work should be used mostly by users who spend most of the time looking at pieces of text, tables or just surfing. This profile aims to deliver better distinctness and clarity by keeping a flat gamma curve (2.20), native color temperature and perceptually accurate colors.

    $4.96
    Buy Now Checkout Added to cart
    Design and Gaming - screen profile

    Design and Gaming

    This profile is aimed at designers who work with colors professionally, and for games and movies as well. Design and Gaming takes display panels to their limits, making them as accurate as possible in the sRGB IEC61966-2-1 standard for Web and HDTV, at white point D65.

    $4.97
    Buy Now Checkout Added to cart
    Health-Guard - screen profile

    Health-Guard

    Health-Guard eliminates the harmful Pulse-Width Modulation (PWM) and reduces the negative Blue Light which affects our eyes and body. Since it’s custom tailored for every panel, it manages to keep the colors perceptually accurate. Health-Guard simulates paper so the pressure on the eyes is greatly reduced.

    $4.98
    Buy Now Checkout Added to cart
    All
    $9.99
    Buy Now Checkout Added to cart

    Sound

    Lenovo Yoga C940 (14) has a loud sound with very good quality. Its low tones have some deviations in clarity, while mids and highs are clear. Interestingly, while the lows are not very audible, hence there is no sophisticated punch, the entire laptop is vibrating as a result of the bass tones.

    Drivers

    You can download all of the drivers and utilities for the Lenovo Yoga C940 (14) on their official website: https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/yoga-series/yoga-c940-14iil/downloads/driver-list/

    Battery

    Now, we conduct the battery tests with Windows Better performance setting turned on, screen brightness adjusted to 120 nits and all other programs turned off except for the one we are testing the notebook with. The 60Wh battery delivered great results!

    We were able to get almost 12 hours of Web browsing and around 12 hours and a half of video playback.

    • Web surfing
    • Video playback
    In order to simulate real-life conditions, we used our own script for automatic web browsing through over 70 websites.
    Lenovo Yoga C940 14
    60Wh, 4-cell
    price
    709 min.
    battery
    Lenovo Yoga C930
    60Wh
    693 min.-2.3%
    Lenovo Yoga S740 14
    1033 min.+45.7%
    ASUS ZenBook S13 UX392
    50Wh, 3-cell
    708 min.-0.1%
    Acer Swift 5 (SF514-52)
    4670 mAh, 2-cell
    462 min.-34.8%
    For every test like this, we use the same video in HD.
    Lenovo Yoga C940 14
    60Wh, 4-cell
    price
    757 min.
    battery
    Lenovo Yoga C930
    60Wh
    709 min.-6.3%
    Lenovo Yoga S740 14
    780 min.+3%
    ASUS ZenBook S13 UX392
    50Wh, 3-cell
    496 min.-34.5%
    Acer Swift 5 (SF514-52)
    4670 mAh, 2-cell
    353 min.-53.4%
    We use F1 2017’s built-in benchmark on loop in order to simulate real-life gaming.
    Lenovo Yoga C940 14
    60Wh, 4-cell
    price
    battery
    Lenovo Yoga C930
    60Wh
    131 min.
    Lenovo Yoga S740 14
    ASUS ZenBook S13 UX392
    50Wh, 3-cell
    Acer Swift 5 (SF514-52)
    4670 mAh, 2-cell
    158 min.

    CPU options

    This device is equipped with one of the following: Core i5-1035G4, Core i7-1065G7.

    • 3D Rendering
    • Adobe Photoshop
    Results are from the Cinebench 20 CPU test (the higher the score, the better)
    Intel Core i5-1035G4
    Lenovo Yoga C940 14
    price
    1471.00
    performance
    Intel Core i5-8250U
    Lenovo Yoga C930
    1085.00-26.2%
    Intel Core i5-1035G4
    Lenovo Yoga S740 14
    1270.00
    Intel Core i7-8565U
    ASUS ZenBook S13 UX392
    1619.00+10.1%
    Intel Core i7-8550U
    Acer Swift 5 (SF514-52)
    1130.00-23.2%
    Results are from the Fritz chess benchmark (the higher the score, the better)
    Intel Core i5-1035G4
    Lenovo Yoga C940 14
    price
    0.00
    performance
    Intel Core i5-8250U
    Lenovo Yoga C930
    12624.00
    Intel Core i5-1035G4
    Lenovo Yoga S740 14
    0.00
    Intel Core i7-8565U
    ASUS ZenBook S13 UX392
    0.00
    Intel Core i7-8550U
    Acer Swift 5 (SF514-52)
    14455.00
    Results are from our Photoshop benchmark test (the lower the score, the better)
    Intel Core i5-1035G4
    Lenovo Yoga C940 14
    price
    8.46
    performance
    Intel Core i5-8250U
    Lenovo Yoga C930
    13.20+56%
    Intel Core i5-1035G4
    Lenovo Yoga S740 14
    8.15
    Intel Core i7-8565U
    ASUS ZenBook S13 UX392
    7.94-6.1%
    Intel Core i7-8550U
    Acer Swift 5 (SF514-52)
    11.63+37.5%

    Lenovo Yoga C940 (14") CPU variants

    Here you can see an approximate comparison between the CPUs that can be found in the Lenovo Yoga C940 (14") models on the market. This way you can decide for yourself which Lenovo Yoga C940 (14") model is the best bang for your buck.

    Note: The chart shows the cheapest different CPU configurations so you should check what the other specifications of these laptops are by clicking on the laptop’s name / CPU.

    • 3D Rendering
    • Adobe Photoshop
    Results are from the Cinebench 20 CPU test (the higher the score, the better)
    Intel Core i7-1065G7
    Lenovo Yoga C940 14
    $1069.00
    price
    1667
    performance
    Intel Core i5-1035G4
    Lenovo Yoga C940 14
    $1384.95+30%
    1470-11.8%
    Results are from the Fritz chess benchmark (the higher the score, the better)
    Intel Core i7-1065G7
    Lenovo Yoga C940 14
    $1069.00
    price
    performance
    Intel Core i5-1035G4
    Lenovo Yoga C940 14
    $1384.95+30%
    Results are from our Photoshop benchmark test (the lower the score, the better)
    Intel Core i7-1065G7
    Lenovo Yoga C940 14
    $1069.00
    price
    8.91
    performance
    Intel Core i5-1035G4
    Lenovo Yoga C940 14
    $1384.95+30%
    9.28+4.2%

    GPU options

    As Lenovo doesn’t offer a dedicated GPU, you can only take advantage of the newly improved Intel Iris Plus Graphics chips that come integrated into their processors.

    • 3DMark Fire Strike (G)
    • Unigine Heaven 3.0
    • Unigine Heaven 4.0
    • Unigine Superposition
    Results are from the 3DMark: Fire Strike (Graphics) benchmark (higher the score, the better)
    Intel Iris Plus Graphics G4
    Lenovo Yoga C940 14
    price
    2326.00
    performance
    Intel UHD Graphics 620
    Lenovo Yoga C930
    1171.00-49.7%
    Intel Iris Plus Graphics G4
    Lenovo Yoga S740 14
    2307.00
    NVIDIA GeForce MX150 (2GB GDDR5)
    ASUS ZenBook S13 UX392
    2861.00+23%
    Intel UHD Graphics 620
    Acer Swift 5 (SF514-52)
    807.00-65.3%
    Results are from the Unigine Heaven 3.0 benchmark (higher the score, the better)
    Intel Iris Plus Graphics G4
    Lenovo Yoga C940 14
    price
    596.00
    performance
    Intel UHD Graphics 620
    Lenovo Yoga C930
    349.00-41.4%
    Intel Iris Plus Graphics G4
    Lenovo Yoga S740 14
    614.00
    NVIDIA GeForce MX150 (2GB GDDR5)
    ASUS ZenBook S13 UX392
    943.00+58.2%
    Intel UHD Graphics 620
    Acer Swift 5 (SF514-52)
    247.00-58.6%
    Results are from the Unigine Heaven 4.0 benchmark (higher the score, the better)
    Intel Iris Plus Graphics G4
    Lenovo Yoga C940 14
    price
    444.00
    performance
    Intel UHD Graphics 620
    Lenovo Yoga C930
    261.00-41.2%
    Intel Iris Plus Graphics G4
    Lenovo Yoga S740 14
    476.00
    NVIDIA GeForce MX150 (2GB GDDR5)
    ASUS ZenBook S13 UX392
    684.00+54.1%
    Intel UHD Graphics 620
    Acer Swift 5 (SF514-52)
    181.00-59.2%
    Results are from the Unigine Superposition benchmark (higher the score, the better)
    Intel Iris Plus Graphics G4
    Lenovo Yoga C940 14
    price
    427.00
    performance
    Intel UHD Graphics 620
    Lenovo Yoga C930
    268.00-37.2%
    Intel Iris Plus Graphics G4
    Lenovo Yoga S740 14
    436.00
    NVIDIA GeForce MX150 (2GB GDDR5)
    ASUS ZenBook S13 UX392
    403.00-5.6%
    Intel UHD Graphics 620
    Acer Swift 5 (SF514-52)
    189.00-55.7%

    Lenovo Yoga C940 (14") GPU variants

    Here you can see an approximate comparison between the GPUs that can be found in the Lenovo Yoga C940 (14") models on the market. This way you can decide for yourself which Lenovo Yoga C940 (14") model is the best bang for your buck.

    Note: The chart shows the cheapest different GPU configurations so you should check what the other specifications of these laptops are by clicking on the laptop’s name / GPU.

    • 3DMark Fire Strike (G)
    • Unigine Heaven 3.0
    • Unigine Heaven 4.0
    • Unigine Superposition
    Results are from the 3DMark: Fire Strike (Graphics) benchmark (higher the score, the better)
    Intel Iris Plus Graphics G7
    Lenovo Yoga C940 14
    $1069.00
    price
    2471
    performance
    Intel Iris Plus Graphics G4
    Lenovo Yoga C940 14
    $1384.95+30%
    2326-5.9%
    Results are from the Unigine Heaven 3.0 benchmark (higher the score, the better)
    Intel Iris Plus Graphics G7
    Lenovo Yoga C940 14
    $1069.00
    price
    687
    performance
    Intel Iris Plus Graphics G4
    Lenovo Yoga C940 14
    $1384.95+30%
    592-13.8%
    Results are from the Unigine Heaven 4.0 benchmark (higher the score, the better)
    Intel Iris Plus Graphics G7
    Lenovo Yoga C940 14
    $1069.00
    price
    455
    performance
    Intel Iris Plus Graphics G4
    Lenovo Yoga C940 14
    $1384.95+30%
    452-0.7%
    Results are from the Unigine Superposition benchmark (higher the score, the better)
    Intel Iris Plus Graphics G7
    Lenovo Yoga C940 14
    $1069.00
    price
    491
    performance
    Intel Iris Plus Graphics G4
    Lenovo Yoga C940 14
    $1384.95+30%
    440-10.4%

    Gaming tests

    cs-go-benchmarks

    CS:GO HD 1080p, Low (Check settings) HD 1080p, Medium (Check settings) HD 1080p, MAX (Check settings)
    Average FPS 69 fps 37 fps 22 fps

    DOTA 2 HD 1080p, Low (Check settings) HD 1080p, Normal (Check settings) HD 1080p, High (Check settings)
    Average FPS 97 fps 46 fps 28 fps

    Temperatures and comfort

    Max CPU load

    In this test we use 100% on the CPU cores, monitoring their frequencies and chip temperature. The first column shows a computer’s reaction to a short load (2-10 seconds), the second column simulates a serious task (between 15 and 30 seconds), and the third column is a good indicator of how good the laptop is for long loads such as video rendering.

    Average core frequency (base frequency + X); CPU temp.

    Intel Core i5-1035G4 (15W TDP) 0:02 – 0:10 sec 0:15 – 0:30 sec 10:00 – 15:00 min
    Lenovo Yoga C940 (14) 2.46 GHz (B+124%) @ 94°C 2.29 GHz (B+108%) @ 94°C 2.15 GHz (B+95%) @ 92°C
    Lenovo Yoga S740 (14) 2.64 GHz (B+140%) @ 100°C 1.89 GHz (B+72%) @ 83°C 1.66 GHz (B+51%) @ 69°C

    So yeah, the Yoga C940 (14) is working at significantly higher temperatures than the Yoga S740 (14), after the first checkpoint. However, this results in a lot more respectable results in terms of CPU performance.

    Comfort during full load

    Despite the high internal temperatures, the fans were not bothering to spin up to their maximum capacity. This resulted in a very quiet overall noise, coming from this machine.

    Verdict

    If we have to compare this 2-in-1 device to its predecessor, there is nothing much separating them apart. Perhaps the main (if not the only) difference between these devices is the chipset. Indeed the newer Ice Lake processors give the Yoga C940 (14) the edge when it comes to graphics power. However, when we put CPU performance at stake, we can see some disappointment in people’s eyes.

    Not only the Yoga C940 (14) is not worth the upgrade from the yester-year model, but the Core i5-1035G4 performed worse than the Core i5-8265U. We noticed some differences in the cooling system, which now is using two separate heat-pipes rather than one longer to cool down the processor. Nevertheless, this didn’t seem to do the job.

    On the bright side, the soldered memory modules are now working at the extraordinary 3733 MHz. There is also an M.2 PCIe x4 slot. In fact, the laptop is not that bad – there are two Thunderbolt 3.0 connectors and an “ordinary” USB Type-A 3.1 (Gen. 2) port. Moreover, Lenovo offers optional dongles that you can get inside the box.

    What else to you get inside the box? Well, more accurately – inside the laptop is where you can find the dedicated stylus. It all sounds great, but we had some issues with ours. Whether the problem is due to the 1080p display, or because of some issues with the detection of the Pen, we don’t really know. So, our problem appeared whenever we try to glid the pen on the surface of the display, and no – there were no dust particles on it. It would be great if you can share your experience, should you own the Lenovo Yoga C940 (14), yourself.

    One of the strongest points of this laptop is its display. Its 1080p IPS panel (LG LP140WF9-SPE2) has good maximum brightness, comfortable viewing angles, great contrast ratio and doesn’t use PWM to adjust its brightness levels. In terms of color representation, it is able to recreate 94% of the colors in sRGB and with the help of our Gaming and Web design profile, the display reaches an Average dE of 0.7, which is great for color-sensitive work.

    Battery-wise the notebook we were able to get around 12 hours of on-screen. There is a 30-minute difference between Web browsing and video playback in favor of the latter.

    At the beginning of this review, we really wanted to give this laptop an Editors Choice award. However, this is a classic case of judging the book by its covers. Honestly, this is a great laptop, but there are just too many conditions and Ifs.

    Pros

    • LPDDR4X memory working at 3733 MHz
    • Ice Lake CPUs
    • Has two Thunderbolt 3.0 port
    • Great battery life
    • Covers 94% sRGB (LG LP140WF9-SPE2)
    • Average dE value of 0.7 with our Gaming and Web design (LG LP140WF9-SPE2)
    • Doesn’t use PWM to adjust screen brightness (LG LP140WF9-SPE2)

    Cons

    • No SD card reader
    • Poor upgradability options
    • Premium price tag
    • Has some issues with the touchscreen

    You can check the prices and configurations in our Specs System: https://laptopmedia.com/series/lenovo-yoga-c940-14/

    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 512GB SSD
    • 12GB RAM
    $1069.00
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 512GB SSD
    • 16GB RAM
    $1077.99
    More Info Buy from Amazon
    Lenovo Yoga C940 14
    • Intel Core i7-1065G7
    • Intel Iris Plus Graphics G7
    • 512GB SSD
    • 12GB RAM
    $1083.98
    More Info Buy from Amazon
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    1 Comment
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    Sergei
    Sergei
    1 year ago

    Hello!
    Can you tell me please what is battery life duration in real life?
    A lot of users writing that it is about 6 – 7 hours…

    Thank you

    0
    Reply

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