Dell Latitude 15 5590 review – the new Core i7-8650U in a business outfit

The device we’re looking at today stays true to its Latitude name and is meant to deliver the perfect business experience. It’s targeted at people whose second wife/husband is their job. Dell promises security and reliability with the Latitude 5590 with their enhanced encryption and claims the device to be MIL-STD 810G compliant. They have also equipped the notebook with the latest and greatest Ultra-Low Voltage chip from Intel – the Core i7-8650U, which offers slightly higher base and turbo clocks (1.9 GHz up from 1.8 GHz on the i7-8550U base and 4.2 GHz up from the 4.0 GHz turbo speeds).

The Latitude series are also blessed with the Dell docking support, which makes expanding your work on more than one screen easy and neat. In addition to that, the Latitude 5590 has an SSD option and 8 GB of DDR4 2400 MHz RAM in its sleeve, as well as a Full HD IPS screen. As always, we shall review the performance and features of this device and check if it justifies the premium price point and how it fares against the vast competition in this branch.

You can check the prices and configurations in our Specs System:


Specs Sheet

Dell Latitude 5590 Tabella delle specifiche tecniche

Not available
15.6”, Full HD (1920 x 1080), IPS
256GB M.2 SSD
Slot M.2
1x 2280 PCIe M.2 slot Vedi foto
8GB DDR4, 2400 MHz
376 x 251 x 23.25 - 20.6 mm (14.80" x 9.88" x 0.92")
1.88 kg (4.1 lbs)
Porte e connettività
  • 1x USB Type-A 3.2 Gen 1 (5 Gbps)
  • 2x USB Type-A 3.2 Gen 1 (5 Gbps), Sleep and Charge
  • 1x USB Type-C 3.2 Gen 1 (5 Gbps), Thunderbolt 3, DisplayPort, HDMI
  • HDMI
  • VGA
  • Lettore di schede SD 4.0
  • Ethernet LAN 10/100/1000 Mb/s
  • Wi-Fi 802.11ac (2x2)
  • Bluetooth 4.2
  • Jack audio combo audio / microphone jack
  • Lettore di impronte digitali
  • Telecamera web 720p HD (74 degrees)
  • Tastiera retroilluminata
  • Microfono
  • Altoparlanti 2x 2W
  • Unità ottica
  • Fessura del blocco di sicurezzaNoble lock

What’s in the box?

The box doesn’t move away from the modern box trend and contains the usual manuals and guides, as well as a 65W power brick, cable and (surprisingly) a Dell Latitude 5590.

Design and construction

The Latitude 5590 comes in a well build plastic shell that feels sturdier even than some aluminum devices. Whatever angle you look Latitude 5590 at, it just exudes business. The device measures at 376 x 251 x 20.6 mm (14.8″ x 9.87″ x 0.8″) and weights 1.88 kg (4.14 lbs) – not the lightest of the competition but it is too heavy to carry around either.

The body of the device is built on one polycarbonate monocoque, which has a removable bottom panel. The screen itself is mounted by means of the hinges, which can be seen on the outside. They look super sturdy and are one of the strongest points of the notebook.

Opening the lid is tough for using only one hand, however, results in less shakiness in an upright position. The monocoque we were talking about earlier has a cutout for the keyboard, which can be removed easily, as it is held in place by a couple of clips. The typing experience is on point with clicky tactile keys and fast response. In addition to that, the keyboard is equipped with a backlight. Next, we have the touchpad that serves the purpose perfectly, while not being the best one out there. Latitude 5590 also has a joystick mock and two sets of stand-alone mouse buttons, which are legacy from the older Latitude models.

On the port front, we have connectors scattered all over the place. The sides of the device do not have so many openings at the expense of the back. There are two USB ports, one of which is Type-C and supports DisplayPort output, while the other one is a regular Type-A. Next to them, we have the SD card reader that comes with a neat cover, protecting it from dust and particles. The last slot on this side is optional and is dedicated a Smart Card reader.

On the other side are located the audio jack, an optional SIM card slot, as well as a USB 3.0 Type-A and a VGA connector. Next, we turn the device to show us its back, where we see an RJ-45 connector, embedded into the right hinge. Right next to it is the hot air exhaust drill. After that, we have an HDMI connector and another USB 3.0 Type-A port, as well as the power plug, which itself is integrated into the other hinge.

Disassembly and maintenance

The bottom panel of Latitude 5590 is held by only 8 Phillips head screws, meaning that basically everyone would be able to access the internals without any problems. We like that the screws are designed in a way, that when unscrewed they stay attached to the panel, so you won’t lose them – service guys’ worst nightmare.

Once inside, we see a slender design, perfectly fitting the outside of the laptop. Stuff is minimalistic with dark colors, and even the 68Wh battery stickers are made to look of an exquisite quality.

As you can see from the images there is only one heat pipe placed on top of the CPU, so don’t expect any feats from the cooling, although it should be enough to cool an Ultra-Low Voltage CPU.

Right underneath the CPU are located the two RAM DIMMs which support up to 32 GB of memory, and beneath them is the behemoth 68Wh battery.

On the left of the device, we found the Wi-Fi controller, as well as the M.2 SATA SSD drive. Beneath the SSD slot, you can see space dedicated to an HDD drive, although our unit doesn’t have the appropriate connector for the purpose.

Display quality

Dell Latitude 15 5590 comes with a Full HD (1920×1080) IPS panel with 15.6-inch diagonal, 0.18 x 0.18 mm pixel pitch and 142 ppi. The panel is manufactured by BOE and has a model number NV15N42 and can be considered as “Retina” when viewed from at least 60 cm.

Viewing angles are good.

We’ve recorded a peak brightness 246 nits in the center of the screen and 237 nits as an average across the surface with a maximum deviation of 10%. The correlated color temperature at maximum brightness is 6800K – just a little colder than the standard 6500K. When we go along the grayscale it comes even closer to the optimal temperature with 6680K. You can see how these values change at 140 nits (81% brightness) in the image below.

The maximum color deviation dE2000 compared to the center of the screen should be no more than 4.0 and if you are planning to do color-sensitive work, it should be lower than 2.0. The contrast ratio is very good – 1280:1 before calibration and 1190:1 after calibration.

Color reproduction

To make sure we are on the same page, we would like to give you a little introduction of 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. Basically, colors inside the black triangle are used by everyone and this is the 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.

Sadly, Latitude 15 5590’s display covers only 50% of the colors in sRGB/ITU-R BT.709 in CIE1976.

Our “Design and Gaming” profile delivers optimal color temperature (6500K) at 140 nits 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.

The next figure shows how well the display is able to reproduce really 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 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 reverse.

We recorded Fall Time + Rise Time = 34 ms. A fairly slow panel to be honest.

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.

Dell Latitude 15 5590’s brightness levels are PWM-adjusted at all levels except the maximum, although it does it at a relatively high frequency, which partially reduces the negative effect.

Blue light emissions

Installing of 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.


The Full HD display of Dell Latitude 15 5590 has an IPS panel which, as usual, results in comfortable viewing angles and good contrast ratio. We could say that the screen is a very good one if it wasn’t for the poor color range – it can display only half of the colors found on the Internet.

Buy our profiles

Since our profiles are tailored for each individual display model, this article and its respective profile package is meant for Dell Latitude 15 5590 configurations with 15.6″ BOE NV15N42 (FHD, 1920 × 1080) IPS screen and the laptop can be found at Amazon: Compra da (#CommissionsEarned)

*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.

Oltre a ricevere profili efficienti e rispettosi della salute, comprando i prodotti di LaptopMedia sostenete anche lo sviluppo dei nostri laboratori, dove testiamo i dispositivi per produrre le recensioni più obiettive possibili.

Lavoro in ufficio

Lavoro in ufficio dovrebbe essere usato soprattutto dagli utenti che passano la maggior parte del tempo a guardare pezzi di testo, tabelle o semplicemente a navigare. Questo profilo mira a fornire una migliore distinzione e chiarezza mantenendo una curva gamma piatta (2.20), una temperatura di colore nativa e colori percettivamente accurati.

Design e gioco

Questo profilo è rivolto ai designer che lavorano professionalmente con i colori, e anche per giochi e film. Design and Gaming porta i pannelli di visualizzazione ai loro limiti, rendendoli il più accurati possibile nello standard sRGB IEC61966-2-1 per Web e HDTV, al punto di bianco D65.


Salute-Guardia elimina la nociva Pulse-Width Modulation (PWM) e riduce la luce blu negativa che colpisce i nostri occhi e il nostro corpo. Essendo personalizzato per ogni pannello, riesce a mantenere i colori percettivamente accurati. Salute-Guardia simula la carta, quindi la pressione sugli occhi è notevolmente ridotta.

Ottenete tutti e 3 i profili con il 33% di sconto


Dell Latitude 15 5590’s speakers sound very good. The tones are crisp in the whole range from low to high frequencies.


Dell sells the device (region dependent) with a 64-bit Windows 10 Pro edition onboard and all drivers preinstalled. Anyhow, in case you need to reinstall or upgrade, you can download the necessary drivers here:


As always, the battery tests were run with Windows power saving setting turned and Wi-Fi turned on, and the screen brightness adjusted to 120 nits. Dell Latitude 5590 comes with a hefty 68Wh battery, which has enough juice to give you around 10 hours of web surfing time and a pinch over 7 hours of video playback. This should be enough to get you through a busy day just on battery power. Also if you opt to game away from the plug, you’re session will be no longer than two hours.

CPU – Intel Core i7-8650U

The Intel Core i7-8650U is part of the new 8th Generation Kaby Lake Refresh and it’s a direct successor to the Intel Core i7-7500U from the Kaby Lake generation and the Intel Core i7-6500U from the 6th Skylake generation. With the latest alteration to the ULV (ultra-low voltage) processors, Intel doubles the core count from 2 to 4 and retaining the so-called Hyper-Threading technology, keeping the same 14nm manufacturing process and feature the same 15W TDP.

However, due to the core count change, the base frequency of the Core i7-8550U is lowered to only 1.9 GHz while Turbo Boost frequencies remain pretty high – 4.2 GHz. This ensures considerably higher multi-core and single-core performance during short workloads before going back to more bearable frequencies considering the 15W TDP but most of the other specs and features remain the same.

The chip also incorporates a newer Intel Gen 9.5 integrated graphics called Intel UHD Graphics 620. The support for Google’s VP9 codec and H.265/HEVC Main 10 is still the most notable feature of the iGPU. Intel claims that the new UHD 620 chips improve the overall power consumption compared to the previous one.

You can browse through our top CPUs ranking:

GPU – Intel UHD Graphics 620

Intel UHD Graphics 620 is a refresh of the HD Graphics 620 found as an integrated solution in many ULV Kaby Lake processors. UHD Graphics 620 is codenamed “Kaby Lake R U GT2” and it’s a part of the Gen 9.5 generation.

Intel UHD Graphics 620 has roughly the same performance as HD Graphics 620, depending on the other components in the system. UHD Graphics 620’s performance is similar to AMD Radeon R5 M420X and NVIDIA GeForce 910M/920M.

You can browse through our top GPUs ranking:

Storage performance

The Latitude 5590 uses Toshiba’s KSG60ZMV256G M.2 SATA SSD with 256 GB. Its speeds are typical for a SATA device – 540.3 MB/s Read and 349.1 MB/s Write speeds, which is not on par with the NVMe drives, but is definitely better than a regular HDD solution.

Gaming tests

You can enjoy some gaming on the Latitude 5590, but in order to do so, you need to sacrifice a lot of eye candy and even turn the resolution down in the case of GTA V for example.

DOTA 2Full HD, Low (Check settings)Full HD, Normal (Check settings)Full HD, High (Check settings)
Average FPS59 fps31 fps– fps


Grand Theft Auto V (GTA 5)HD 768p, Low (Check settings)HD 768p, Medium (Check settings)HD 768p, Very High (Check settings)
Average FPS28 fps– fps– fps
Min FPS17 fps– fps– fps


The temperature tests go this way. We use Prime95 and FurMark to torture the CPU and the GPU respectively. This won’t give real-life representation but with our methodology, we are trying to give you the most optimal results.

The first values from the test are from the 30th second of running the Prime95 stress test, which simulates a heavy task run on your computer (usually lighter tasks take from a part of the second up to a couple of seconds). Next, we take the ones from the 2nd-minute mark, which imitates a very heavy task, run on the CPU. The last values we give you are the ones at the end of the test, which is 15 minutes, simulating the CPU load when it renders a video, for example.

0-15 min. CPU torture test

The new Core i7-8650U has a base frequency of 1.9 GHz and reaches up to 4.2 GHz in Turbo mode. We found that the CPU inside our unit is idling at a relatively low 32C. When we started the test there was a short burst around the 3.4-3.5 GHz, when the frequency dropped to around 3.2 GHz and finally, after reaching a threshold of 88C, the frequencies plummeted to 2.6 GHz, rendering the Latitude 5590 unable to utilize the higher clock speed of its Core i7-8650U.

From then on to the end of the second-minute mark the frequencies stabilized at 2.6 GHz as well as the temperature fluctuating between 72C and 73C.

During the final 13 minutes of this torture test, we saw a little increase in clock speeds at the beginning and then slowly going back to 2.6 GHz realms, before establishing at 2.5 GHz with all-time lows of 2.4 GHz and an average for the whole test shy above 2.6 GHz, which is not the best result. Anyhow, we should keep in mind that those are extreme conditions and such a behavior won’t occur during day to day usage. Temperature-wise, the Latitude 5590 maintained adequate package temperature values, giving an average of 73C.

Lastly, we measured relatively cool temperatures on the outside of the device.



Dell is a company with huge traditions in portable enterprise and business computers. One of its main rivals is Lenovo (formerly IBM) with its ThinkPad series and the ThinkPad L570 in particular. More challenge in this category is found in the face of HP’s EliteBook.

One of the main features of the Latitude 15 5590 is the new Intel Core i7-8650U processor which offers slightly higher clocks than the Core i7-8550U. As we saw in the benchmarks, there is hardly any difference between the two CPUs, and that is mainly because of the nature of the devices they are inside of. A turbo clock boost of 200 MHz in a business laptop is completely useless, in our opinion, given the results we encountered. If we were to compare that machine to Dell’s own XPS 13 9370, we would see not only that the Dell scores better in the CPU department, but in the GPU game, it totally defeats the Latitude 5590.

Anyway, if we juxtapose the Latitude 5590 not to an exquisite device such as the XPS 13, but more like to – Lenovo V330, we could see that there is more or less an improvement. All in all, we cannot say with certainty whether the CPU is worth the upgrade or not, but when we test more devices with this processor, we are going to update the information.

Another feature that acts like a double-edged sword is the display of the Latitude 5590. Of course an IPS panel is never unnecessary, given the high contrast ratio and good viewing angles but here the screen itself is not the best on the market, especially at this price point – it lacks half of the colors in the sRGB gamut (those you can see on Internet and HD television) and not only that but it appears to use PWM for all brightness levels, which is fixed, of course, by our Health-Guard Profile.


  • All-new Core i7-8650U onboard
  • Good and tough design
  • IPS display
  • Backlit keyboard
  • Good battery life


  • PWM-adjusted for all brightness levels (fixed by our profiles)
  • Displays only 50% of sRGB colors

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5 anni fa

Thanks for all of the work for this review… most comprehensive I have seen!!!

5 anni fa

Great review, thanks a lot for your effort.

2 anni fa

Great review