Lenovo Legion Slim 5i Gen 8 (2023) vs Asus ROG Zephyrus G14 (2023)

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Evaluation of Lenovo Legion Slim 5i Gen 8 (2023) and Asus ROG Zephyrus G14 (2023) important characteristics
System and application performance
Performance in popular 3D games
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Ports, webcam and other interfaces
Design, materials, durability and usability
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Key Differences

What are the key differences between the notebooks
Advantages of the Lenovo Legion Slim 5i Gen 8 (2023)
  • Higher number of cutting-edge USB Type-C ports: 2 versus 1
Advantages of the Asus ROG Zephyrus G14 (2023)
  • Significantly easier to carry: weighs 650 grams less (around 1.43 lbs)
  • Around 34% better multi-core CPU performance in the Cinebench R23 test
  • Features a bigger (~27%) battery – 76 against 60 watt-hours
  • Much smaller footprint: 24% more compact case (109.7 vs 145.1 square inches)
  • Provides 33% higher max. screen brightness: 400 vs 300 nits

Value for money

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Tests and Specifications

Comparison table of test results and technical specs


Weight 2.3 kg (5.07 lbs) 1.65 kg (3.64 lbs)
Dimensions 359.7 x 260.3 x 19.9-25.2 mm
14.16 x 10.25 x 0.78-0.99 inches
312 x 227 x 19.5-20.5 mm
12.28 x 8.94 x 0.77-0.81 inches
Area 936 cm2 (145.1 inches2) 708 cm2 (109.8 inches2)
Screen-to-body ratio ~79.3% ~80.2%
Side bezels 7.5 mm 5.3 mm
Colors Gray White, Black
Material Top: Aluminum
Middle: Plastic
Bottom: Plastic
Transformer No No
Opening angle 180° 180°
Size comparison
Cooling solution
Cooling system Active Active
Vapor chamber No Yes
Liquid metal No Yes
Number of fans 2 2
Noise level (max. load) - 52.2 dB


Size 16 inches 14 inches
Refresh rate 144 Hz 144 Hz
PPI 142 ppi 162 ppi
Aspect ratio 16:10 16:10
Resolution 1920 x 1200 pixels 1920 x 1200 pixels
HDR support No Yes, Dolby Vision
Sync technology G-Sync G-Sync
Touchscreen No No
Coating Matte Matte
Ambient light sensor No No
Screen space comparison
Legion Slim 5i Gen 8 (2023)
16″ (16:10 ratio) = 115.1 in2
ROG Zephyrus G14 (2023)
14″ (16:10 ratio) = 88.1 in2
~30% more screen space
Display tests
Contrast 1200:1 -
sRGB color space - 100%
Adobe RGB profile - 75.3%
Response time - 3 ms
Max. brightness


Full charging time - 1:30 hr
Battery type Li-Po Li-Ion
Replaceable No No
Fast charging Yes Yes
USB Power Delivery Yes Yes
Charging port position Left, Bottom Left
Charge power 170 / 230 W 200 / 240 W
Weight of AC adapter - 682 / 727 grams


CPU name
Base frequency 2 GHz 3.2 GHz
Turbo frequency 4.4 GHz 4.75 GHz
Cores 8 (4P + 4E) 8
Threads 12 16
L3 Cache 12 MB 16 MB
Integrated GPU Intel UHD Graphics (48EU) Radeon 680M
Fabrication process 10 nm 6 nm


Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)

Graphics Card

GPU name
TGP 95 W 95 W
Nvidia Optimus Yes, Advanced Optimus MUX
Type Dedicated Dedicated
Fabrication process 8 nm 8 nm
GPU base clock 1530 MHz 1530 MHz
GPU boost clock 1740 MHz 1740 MHz
Memory size 6 GB 6 GB
Memory type GDDR6 GDDR6
Memory bus 128 bit 128 bit
Memory speed 12 Gbps 12 Gbps
Shading units (cores) 2048 2048
Texture mapping units (TMUs) 64 64
Raster operations pipelines (ROPs) 40 40
GPU performance


RAM size
Channels 1x8 GB 1x8 GB
Clock 5200 MHz 4800 MHz
Type DDR5 DDR5
Upgradable Yes Yes
Total slots 2 1
Max. ram size 32 GB 48 GB


Storage size
Bus PCI-E Gen 4.0 (4x) PCI-E Gen 4.0 (4x)
Storage type SSD (M2) SSD (M2)
Channels 1x512 GB 1x512 GB
Upgradable Yes Yes
Total slots 2 1
NVMe Yes Yes


Audio chip Realtek ALC3287 -
Speakers 2.0 2.2 (2 tweeters and 2 woofers)
Power 2x2W 4x2W
Dolby Atmos No Yes
Loudness - ~80 dB
Microphones 2 3


Wi-Fi standard v6E v6E
Bluetooth v5.2 v5.3
Fingerprint No No
Infrared sensor No Yes
Optical drive No No
Webcam Above the display Above the display
Webcam resolution 1920 x 1080 1920 x 1080
USB-A 2x USB 3.2 2x USB 3.2
USB Type-C 2x USB 4.0 1x USB 4.0
Thunderbolt Thunderbolt 4 No
HDMI 1x HDMI 2.1 1x HDMI 2.1
DisplayPort No No
Audio jack (3.5 mm) Yes Yes
Ethernet (RJ45) Yes No
SD card reader Yes Yes
Proprietary charging port Yes Yes


Keyboard type Island Island
Numpad Yes No
Backlight Yes Yes
Key travel 1.5 mm 1.7 mm
Size 12.0 x 7.5 cm 12.8 x 7.6 cm
Surface Plastic Glass
Windows Precision Yes Yes
Further details
Notes on Legion Slim 5i Gen 8 (2023):
    - Models with RTX 4060/4070 graphics have a thickness of 19.9-25.2 mm, while those with RTX 4050/3050 are 19.9-21.9 mm thick.
    - By pressing Fn+R, you can switch the display refresh rate between 240Hz, 165Hz, 144Hz, and 60Hz.
Notes on ROG Zephyrus G14 (2023):
    - Full magnesium-alloy body.
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.

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