Asus ROG Zephyrus G15 GA503 (2022) vs Lenovo Legion 9i Gen 10 (2025)

[ VERDICT ] Winner: Lenovo Legion 9i Gen 10 (2025) (89/100)

Lenovo Legion 9i Gen 10 (2025) leads overall with a score of 89/100 compared to Asus ROG Zephyrus G15 GA503 (2022) (51/100), offering superior measured performance and technical specifications.

Benchmark Performance Comparison

Normalized Lab Scores
Benchmark measurements and scores across compared devices
Benchmark Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Gaming 35.0 Poor 92.0 Excellent WINNER
NanoReview Score 51.0 Below Average 89.0 Very Good WINNER
Performance 56.0 Below Average 96.0 Excellent WINNER

Detailed Technical Specifications

Battery

Battery specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Battery type Li-Ion Li-Po
Charge power 100 / 240 W 400 W
Charging port position Left Left, Bottom
Charging via USB (Power Delivery) Yes Yes, 140 W
Fast charging Yes Yes
Replaceable No No
Weight of AC adapter 741 grams 1247 grams

CPU

CPU specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Base frequency 3.2 GHz 2.7 GHz
Cores 8 24 (8P + 16E)
Fabrication process 6 nm 3 nm
Integrated GPU AMD Radeon 680M Arc Graphics (4-Cores)
L3 Cache 16 MB 36 MB
Threads 16 24
Turbo frequency 4.7 GHz 5.4 GHz

Case

Case specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Area 863 cm2(133.8 inches2) 1195 cm2(185.2 inches2)
Colors White, Black Black
Cooling system Active Active
Dimensions 355 x 243 x 19.9 mm13.98 x 9.57 x 0.78 inches 403 x 296.5 x 23.9-27.95 mm15.87 x 11.67 x 0.94-1.1 inches
Liquid metal Yes Yes
Material Top: AluminumMiddle: AluminumBottom: Plastic Aluminum
Noise level (max. load) 57.4 dB 56 dB
Number of fans 2 4
Opening angle 180° 180°
Screen-to-body ratio ~77.8% ~78.6%
Side bezels 4.8 mm 7.7 mm
Transformer No No
Vapor chamber No Yes
Weight 1.9 kg (4.19 lbs) 3.5 kg (7.72 lbs)

Connectivity

Connectivity specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Audio jack (3.5 mm) Yes Yes
Bluetooth v5.3 v5.4
DisplayPort No No
Ethernet (RJ45) Yes Yes
Fingerprint No No
HDMI 1x HDMI 2.0 1x HDMI 2.1
Infrared sensor Yes Yes
Optical drive No No
Proprietary charging port Yes Yes
SD card reader Yes Yes
Thunderbolt No Thunderbolt 5
USB Type-C 2x USB 3.2 3x USB 4.0
USB-A 2x USB 3.2 3x USB 3.2
VGA No No
Webcam Above the display Above the display
Webcam resolution 1280 x 720 2560 x 1440
Wi-Fi standard v6E v7

Display

Display specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Ambient light sensor No
Aspect ratio 16:9 16:10
Coating Matte Glossy
Contrast 1030:1 1200:1
DCI-P3 color gamut 100% 88.9%
HDR support Yes, Dolby Vision Yes, Dolby Vision
PPI 188 ppi 252 ppi
Refresh rate 165 Hz 240 Hz
Resolution 2560 x 1440 pixels 3840 x 2400 pixels
Response time 3 ms 3 ms
Size 15.6 inches 18 inches
Sync technology Adaptive Sync G-Sync
Touchscreen No No
Type IPS LCD Mini LED
sRGB color space 100% 100%
Adobe RGB profile 96.8%

GPU Benchmarks

GPU Benchmarks specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Blender GPU 2372 7717
Solar Bay 38824 123422

Graphics Card

Graphics Card specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
FLOPS 13.3 TFLOPS 42 TFLOPS
GPU base clock 1387 MHz 975 MHz
GPU boost clock 1703 MHz
GPU performance 13.3 TFLOPS 42 TFLOPS
Memory bus 192 bit 256 bit
Memory size 6 GB 16 GB
Memory speed 14 Gbps ~28 Gbps
Memory type GDDR6 GDDR7
Nvidia Optimus MUX MUX
Raster operations pipelines (ROPs) 48 96
Shading units (cores) 3840 7680
TGP 120 W 175 W
Texture mapping units (TMUs) 120 240

Input

Input specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Backlight Yes Yes
Key travel 1.7 mm 1.6 mm
Keyboard type Island Island
Numpad No Yes
Surface Glass Glass
Windows Precision Yes Yes

RAM

RAM specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Channels 2x8 GB 2x16 GB
Clock 4800 MHz 5600 MHz
Max. ram size 48 GB 192 GB
Total slots 1 4
Upgradable Yes Yes

Sound

Sound specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Dolby Atmos Yes No
Loudness ~85 dB ~79 dB
Microphones 3 2
Power 4x2W 2x2W, 2x2W
Speakers 4.2 (4 tweeters and 2 woofers) 2.2 (2 tweeters and 2 woofers)
Audio chip Realtek ALC3306

Storage

Storage specifications comparison
Specification Asus ROG Zephyrus G15 GA503 (2022) Lenovo Legion 9i Gen 10 (2025)
Bus PCI-E Gen 4.0 (4x) PCI-E Gen 5.0 (4x)
NVMe Yes Yes
Storage type SSD (M2) SSD (M2)

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