Lenovo Legion Slim 5i Gen 8 (16″ Intel, 2023) review – compact gaming device with powerful hardware


Temperatures and comfort, Battery Life

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 P-core frequency; Average E-core frequency; CPU temp.; Package Power

 

Intel Core i5-13500H (45W TDP)0:02 – 0:10 sec0:15 – 0:30 sec10:00 – 15:00 min
Lenovo Legion Slim 5i Gen 8 (16″ Intel, 2023)3.62 GHz @ 3.22 GHz @ 90°C @ 95W2.98 GHz @ 3.19 GHz @ 92°C @ 97W3.58 GHz @ 3.10 GHz @ 92°C @ 96W
Lenovo LOQ (15″ Intel, 2023)3.66 GHz @ 2.76 GHz @ 83°C @ 94W3.95 GHz @ 3.03 GHz @ 85°C @ 91W1.63 GHz @ 3.28 GHz @ 82°C @ 70W

The cooling is doing a good job in terms of CPU clocks and power limits. No matter the load, the processor can maintain high frequencies on the P and E cores and ~90W power target which is nice to see. On the other hand, the thermals of the CPU are on the high side. In the long run, the Legion Slim 5i Gen 8’s P cores can boost much higher compared to its “cousin” – the Lenovo LOQ (15″ Intel, 2023).

Real-life gaming

NVIDIA GeForce RTX 4060GPU frequency/ Core temp (after 2 min)GPU frequency/ Core temp (after 30 min)
Lenovo Legion Slim 5i Gen 8 (16″ Intel, 2023)2127 MHz @ 61°C @ 60W2212 MHz @ 60°C @ 60W
Dell G16 76302520 MHz @ 71°C @ 107W2520 MHz @ 73°C @ 107W
Acer Nitro 17 (AN17-71)2610 MHz @ 68°C @ 100W2610 MHz @ 69°C @ 101W
ASUS Zenbook Pro 14 OLED (UX6404)2337 MHz @ 80°C @ 90W2327 MHz @ 82°C @ 90W
MSI Katana 17 (B12V)2246 MHz @ 74°C @ 83W2273 MHz @ 73°C @ 84W
ASUS ROG Strix G16 (G614, 2023)2490 MHz @ 68°C @ 99W2490 MHz @ 69°C @ 99W
Acer Predator Helios 16 (PH16-71)2550 MHz @ 68°C @ 98W2550 MHz @ 68°C @ 98W
Lenovo Legion Pro 5 (16″, 2023)2625 MHz @ 70°C @ 100W2625 MHz @ 74°C @ 99W

It seems that Lenovo has decided to tame down the GPU because of the thin profile of the device. The cooling setup definitely favors thermals over frequencies – 60°C after more than half an hour of gaming sounds great but on the flip side, the TGP is just 60W (while the GPU is described as 140W in the NVIDIA Control Panel). Keep in mind that we also turned on the automatic overclock function in the Lenovo Vantage app. We’ll share with you some other GPU-related statistics after our torture test – 66°C Hot Spot, 0.809mv core voltage, and 94°C for the VRAM memory chips.

Gaming comfort

You can hear the fans when the Performance mode is applied and the noise can be described as moderate. The hotspot on the keyboard is on the right side so the WASD and the palm rest areas are cool enough for comfortable gaming.

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. Our laptop features an 80Wh battery pack. It lasts for 8 hours and 20 minutes of Web browsing, or 7 hours and 42 minutes of video playback. In short, the battery life is good (especially for an H-series CPU) and a single charge could be probably enough for a whole working day.

In order to simulate real-life conditions, we used our own script for automatic web browsing through over 70 websites.



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Rivardy
Rivardy
8 months ago

hi, may i know the thermal pad thickness and size, my laptop was only have 1 thermal pad on the left side , while the main ssd is losing it’s thermal pad 😀

Erick
Erick
6 months ago

I’m curious about the 60W GPU limit on this model. There are any possibility of Nvidia change this in a future update? Or this is something that Lenovo controls? Or they probably won’t change that? Seems insane you advertise the laptop with a up 140W and limit it to run at less than half of that.

John
John
4 months ago
Reply to  Erick

Read the review, in particular the section on the Vantage software.