Asus ROG Zephyrus M16 GU603 (2022) vs Zephyrus G15 GA503 (2022)

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Evaluation of Asus ROG Zephyrus M16 GU603 (2022) and Zephyrus G15 GA503 (2022) 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 Asus ROG Zephyrus M16 GU603 (2022)
  • Thinner bezels and 11% higher screen-to-body ratio
  • Around 29% better multi-core CPU performance in the Cinebench R23 test
  • Provides 33% higher max. screen brightness: 400 vs 300 nits
Advantages of the Asus ROG Zephyrus G15 GA503 (2022)
  • Can run popular games at about 29-40% higher FPS
  • 32% sharper screen – 188 versus 142 pixels per inch (PPI)

Value for money

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Tests and Specifications

Comparison table of test results and technical specs


Weight 1.9 kg (4.19 lbs) 1.9 kg (4.19 lbs)
Dimensions 355 x 243 x 19.9 mm
13.98 x 9.57 x 0.78 inches
355 x 243 x 19.9 mm
13.98 x 9.57 x 0.78 inches
Area 863 cm2 (133.8 inches2) 863 cm2 (133.8 inches2)
Screen-to-body ratio ~86% ~77.8%
Side bezels 5.2 mm 4.8 mm
Colors Black White, Black
Material Top: Aluminum
Middle: Plastic
Bottom: Plastic
Top: Aluminum
Middle: Aluminum
Bottom: Plastic
Transformer No No
Opening angle 180° 180°
Size comparison
Cooling solution
Cooling system Active Active
Vapor chamber No No
Liquid metal Yes Yes
Number of fans 2 2
Noise level (max. load) 52 dB 57.4 dB


Size 16 inches 15.6 inches
Refresh rate 165 Hz 165 Hz
PPI 142 ppi 188 ppi
Aspect ratio 16:10 16:9
Resolution 1920 x 1200 pixels 2560 x 1440 pixels
HDR support Yes, Dolby Vision Yes, Dolby Vision
Sync technology Adaptive Sync Adaptive Sync
Touchscreen No No
Coating Matte Matte
Ambient light sensor No No
Screen space comparison
ROG Zephyrus M16 GU603 (2022)
16″ (16:10 ratio) = 115.1 in2
ROG Zephyrus G15 GA503 (2022)
15.6″ (16:9 ratio) = 104 in2
~10% more screen space
Display tests
Contrast 1000:1 1030:1
sRGB color space 100% 100%
DCI-P3 color gamut - 100%
Response time 3 ms 3 ms
Max. brightness


Full charging time 2:10 hr -
Battery type Li-Ion Li-Ion
Replaceable No No
Fast charging Yes Yes
USB Power Delivery Yes Yes
Charging port position Left Left
Charge power 100 / 240 W 100 / 240 W
Weight of AC adapter 761 grams 741 grams


CPU name
Base frequency 2.3 GHz 3.2 GHz
Turbo frequency 4.7 GHz 4.7 GHz
Cores 14 (6P + 8E) 8
Threads 20 16
L3 Cache 24 MB 16 MB
Integrated GPU Intel Iris Xe Graphics (96EU) AMD 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 100 W 120 W
Nvidia Optimus MUX MUX
Type Dedicated Dedicated
Fabrication process 8 nm 8 nm
GPU base clock 1463 MHz 1425 MHz
GPU boost clock 1695 MHz 1740 MHz
Memory size 4 GB 6 GB
Memory type GDDR6 GDDR6
Memory bus 128 bit 192 bit
Memory speed 12 Gbps 14 Gbps
Shading units (cores) 2560 3840
Texture mapping units (TMUs) 80 120
Raster operations pipelines (ROPs) 48 48
GPU performance


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


Speakers 4.2 (4 tweeters and 2 woofers) 4.2 (4 tweeters and 2 woofers)
Power 4x2W 4x2W
Dolby Atmos Yes Yes
Loudness ~85 dB ~85 dB
Microphones 2 3


Wi-Fi standard v6E v6E
Bluetooth v5.3 v5.3
Fingerprint No No
Infrared sensor Yes Yes
Optical drive No No
Webcam Above the display Above the display
Webcam resolution 1280 x 720 1280 x 720
USB-A 2x USB 3.2 2x USB 3.2
USB Type-C 2x USB 3.2 2x USB 3.2
Thunderbolt Thunderbolt 4 No
HDMI 1x HDMI 2.0 1x HDMI 2.0
DisplayPort No No
Audio jack (3.5 mm) Yes Yes
Ethernet (RJ45) Yes Yes
SD card reader Yes Yes
Proprietary charging port Yes Yes


Keyboard type Island Island
Numpad No No
Backlight Yes Yes
Key travel 1.7 mm 1.7 mm
Size - 12.9 x 8.6 cm
Surface Plastic Glass
Windows Precision Yes Yes
*Disclaimer! Ports, speakers, display, and other specifications can vary depending on the laptop's specific configuration or region.

Cast your vote

So, which laptop would you choose?
138 (68.3%)
64 (31.7%)
Total votes: 202


Write your opinion about the comparison of Asus ROG Zephyrus G15 GA503 (2022) and Zephyrus M16 GU603 (2022) or ask any questions
ManZ 25 September 2023 02:23
Both the laptops are having liquid cooling, not only g15
0 Reply
Serhii 25 September 2023 05:46
Thank you for such detailed information, we will check the laptop specs.
0 Reply
Kri 27 July 2022 18:05
The G15 has 6 speakers
0 Reply
Sergey 27 July 2022 18:59
Yes, 4 tweeters and 2 woofers :)
+2 Reply
Immanuel 16 July 2022 16:46
I have been reading a lot of reviews about which is better between the M16 and the G16 and it has been really tough picking one over the other. But I like how the M16 looks, especially the screen. How wide it is...but they say the G15's battery is miles better. 😫
+11 Reply
Phillip 30 April 2022 16:58
The m16 and g15 have the same DCI-P3 color gamut and Response time.
+16 Reply