Asus ROG Zephyrus G16 GU605 RTX 4090 (2024) vs MSI Stealth 16 AI+ B3 RTX 5080 (2026)
What ROG Zephyrus G16 GU605 RTX 4090 (2024) does better (14) and where Stealth 16 AI+ B3 RTX 5080 (2026) wins (15) — every spec side by side.
vs
9.3Graphics9.5
8.7Overall performance9.4
7.3Display9.1
7.1Memory & storage5.2
9.3Battery & portability5.1
9.4Features & cooling6.0
Dimensions
Size comparison
ROG Zephyrus G16 GU605 RTX 4090 (2024)Stealth 16 AI+ B3 RTX 5080 (2026)
| ROG Zephyrus G16 GU605 RTX 4090 (2024) | Stealth 16 AI+ B3 RTX 5080 (2026) | Difference | |
|---|---|---|---|
| Depth | 246 mm | 246 mm | = |
| Width | 354 mm | 354 mm | = |
| Thickness | 17.2 mm | 20 mm | −2.8 mm |
| Weight | 1.8 kg | 2 kg | −0.1 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Zephyrus G16 GU605 RTX 4090 (2024) better than Stealth 16 AI+ B3 RTX 5080 (2026)?
- SSD (up to)4,096 GB vs 1,000 GB4.1×
- Weight1.85 kg vs 1.99 kg+8%
- GPU shader cores9,728 vs 7,680+27%
- G-Sync / FreeSyncYes · Stealth 16 AI+ B3 RTX 5080 (2026): No
- RAM typeLPDDR5X vs DDR5
- Vapor chamber coolingYes · Stealth 16 AI+ B3 RTX 5080 (2026): No
- Liquid metal (CPU)Yes · Stealth 16 AI+ B3 RTX 5080 (2026): No
- SD card readerYes · Stealth 16 AI+ B3 RTX 5080 (2026): No
- Dolby AtmosYes · Stealth 16 AI+ B3 RTX 5080 (2026): No
- Thickness17.2 mm vs 20 mm+16%
- Cooling fans3 vs 2+50%
- CPU threads22 vs 16+38%
Why is Stealth 16 AI+ B3 RTX 5080 (2026) better than ROG Zephyrus G16 GU605 RTX 4090 (2024)?
- Panel typeIPS vs OLED
- Geekbench 6 multi-core12,605 vs 16,973+35%
- GPU power (TGP)115 W vs 125 W+9%
- Brightness400 nits vs 600 nits+50%
- Response time3 ms vs 1 ms3×
- 3DMark Steel Nomad Light19,706 vs 21,645+10%
- GPU compute (FP32)31.2 TFLOPS vs 32 TFLOPS+3%
- Cinebench 2024 multi-core961 vs 1,247+30%
- RAM (base)16 GB vs 32 GB2×
- Upgradable RAMNo · ROG Zephyrus G16 GU605 RTX 4090 (2024): Yes
- SSD (base)512 GB vs 1,000 GB+95%
- Wi-Fi standardWi-Fi 6E vs Wi-Fi 7+8%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 4090 Laptop | GeForce RTX 5080 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 115 W | 125 W |
| Video memory | 16 GB | 16 GB |
| Video memory type | GDDR6 | GDDR7 |
| GPU shader cores | 9,728 | 7,680 |
| GPU compute (FP32) | 31.2 TFLOPS | 32 TFLOPS |
| 3DMark Steel Nomad Light | 19,706 | 21,645 |
| Processor | ||
| Processor | Core Ultra 7 155H | Core Ultra 9 386H |
| CPU maker | Intel | Intel |
| CPU cores | 16 | 16 |
| CPU threads | 22 | 16 |
| Max CPU clock | 4.8 GHz | 4.9 GHz |
| Processor options | Core Ultra 7 155H, Core Ultra 9 185H | Core Ultra 9 386H |
| Geekbench 6 multi-core | 12,605 | 16,973 |
| Geekbench 6 single-core | 2,455 | 2,859 |
| Cinebench 2024 multi-core | 961 | 1,247 |
| Display | ||
| Screen size | 16″ | 16″ |
| Resolution | 2560 × 1600 | 2560 × 1600 |
| Resolution class | QHD (1440p/1600p) | QHD (1440p/1600p) |
| Refresh rate | 240 Hz | 240 Hz |
| Panel type | IPS | OLED |
| Brightness | 400 nits | 600 nits |
| sRGB coverage | — | 100% |
| Response time | 3 ms | 1 ms |
| DCI-P3 coverage | 100% | 100% |
| Pixel density | 189 ppi | 189 ppi |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | No |
| Advanced Optimus | No | No |
| MUX switch | Yes | Yes |
| HDR | No | No |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 32 GB | 32 GB |
| RAM (base) | 16 GB | 32 GB |
| RAM type | LPDDR5X | DDR5 |
| RAM speed | 7,467 MHz | 7,200 MHz |
| Max. supported RAM | — | 128 GB |
| RAM slots | — | 2 |
| Upgradable RAM | No | Yes |
| SSD (up to) | 4,096 GB | 1,000 GB |
| SSD (base) | 512 GB | 1,000 GB |
| M.2 SSD slots | 2 | 2 |
| SSD interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 90 Wh |
| Power adapter | 240 W | 240 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| USB-C charging power | — | 100 W |
| Design & cooling | ||
| Weight | 1.85 kg | 1.99 kg |
| Thickness | 17.2 mm | 20 mm |
| Width | 354 mm | 354 mm |
| Depth | 246 mm | 246 mm |
| Body material | Aluminium | Aluminium |
| Colours | White, Gray | Black |
| Cooling fans | 3 | 2 |
| Vapor chamber cooling | Yes | No |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 46.4 dB | 56.7 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | Thunderbolt 4 | USB4 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 2 | 2 |
| USB-A ports | 2 | 2 |
| HDMI | HDMI 2.1 | HDMI 2.1 |
| HDMI 2.1 | Yes | Yes |
| (Mini) DisplayPort | No | No |
| Ethernet | — | 5 Gbit/s |
| Ethernet port | No | Yes |
| SD card reader | Yes | No |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6E | Wi-Fi 7 |
| Bluetooth | 5.3 | 6 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | No | No |
| Key travel | 1.7 mm | — |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | Yes |
| Fingerprint reader | No | Yes |
| Audio | ||
| Speakers | 2.4 | 2.2 |
| Dolby Atmos | Yes | No |
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