Asus ROG Zephyrus Duo 16 GX650 RTX 4090 (2023) vs Lenovo Legion Slim 5 Gen 8 14 RTX 3050 (2023)
What ROG Zephyrus Duo 16 GX650 RTX 4090 (2023) does better (22) and where Legion Slim 5 Gen 8 14 RTX 3050 (2023) wins (11) — every spec side by side.
vs
9.7Graphics3.1
9.4Overall performance3.6
9.3Display8.5
5.3Memory & storage5.4
3.6Battery & portability9.3
6.4Features & cooling6.7
Dimensions
Size comparison
ROG Zephyrus Duo 16 GX650 RTX 4090 (2023)Legion Slim 5 Gen 8 14 RTX 3050 (2023)
| ROG Zephyrus Duo 16 GX650 RTX 4090 (2023) | Legion Slim 5 Gen 8 14 RTX 3050 (2023) | Difference | |
|---|---|---|---|
| Depth | 266 mm | 249.1 mm | +16.9 mm |
| Width | 355 mm | 327.5 mm | +27.5 mm |
| Thickness | 30 mm | 20.8 mm | +9.2 mm |
| Weight | 2.7 kg | 1.8 kg | +0.9 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Zephyrus Duo 16 GX650 RTX 4090 (2023) better than Legion Slim 5 Gen 8 14 RTX 3050 (2023)?
- GPU compute (FP32)45.2 TFLOPS vs 7.9 TFLOPS5.7×
- 3DMark Steel Nomad Light26,424 vs 4,8565.4×
- GPU power (TGP)175 W vs 95 W+84%
- Refresh rate240 Hz vs 120 Hz2×
- Geekbench 6 multi-core19,038 vs 10,009+90%
- Video memory16 GB vs 6 GB2.7×
- GPU shader cores9,728 vs 2,0484.8×
- CPU cores16 vs 62.7×
- Cinebench 2024 multi-core1,961 vs 7362.7×
- Brightness1,100 nits vs 400 nits2.8×
- Battery capacity90 Wh vs 74 Wh+22%
- CPU threads32 vs 122.7×
Why is Legion Slim 5 Gen 8 14 RTX 3050 (2023) better than ROG Zephyrus Duo 16 GX650 RTX 4090 (2023)?
- Weight2.67 kg vs 1.75 kg+53%
- Resolution classQHD (1440p/1600p) vs 3K (1800p/2000p)
- Panel typeIPS vs OLED
- Response time3 ms vs 1 ms3×
- Thickness30 mm vs 20.8 mm+44%
- RAM typeDDR5 vs LPDDR5X
- Wi-Fi standardWi-Fi 6 vs Wi-Fi 6E+8%
- SSD (up to)2,000 GB vs 2,048 GB+2%
- RAM speed4,800 MHz vs 6,400 MHz+33%
- Pixel density189 ppi vs 234 ppi+24%
- Fan noise (max. load)56 dB vs 52.5 dB+7%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 4090 Laptop | GeForce RTX 3050 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 175 W | 95 W |
| Video memory | 16 GB | 6 GB |
| Video memory type | GDDR6 | GDDR6 |
| GPU shader cores | 9,728 | 2,048 |
| GPU compute (FP32) | 45.2 TFLOPS | 7.9 TFLOPS |
| 3DMark Steel Nomad Light | 26,424 | 4,856 |
| Processor | ||
| Processor | Ryzen 9 7945HX | Ryzen 5 7640HS |
| CPU maker | AMD | AMD |
| CPU cores | 16 | 6 |
| CPU threads | 32 | 12 |
| Max CPU clock | 5.4 GHz | 5 GHz |
| Processor options | Ryzen 9 7945HX | Ryzen 5 7640HS, Ryzen 7 7840HS, Ryzen 9 7940HS |
| Geekbench 6 multi-core | 19,038 | 10,009 |
| Geekbench 6 single-core | 3,105 | 2,425 |
| Cinebench 2024 multi-core | 1,961 | 736 |
| Display | ||
| Screen size | 16″ | 14.5″ |
| Resolution | 2560 × 1600 | 2880 × 1800 |
| Resolution class | QHD (1440p/1600p) | 3K (1800p/2000p) |
| Refresh rate | 240 Hz | 120 Hz |
| Panel type | IPS | OLED |
| Brightness | 1,100 nits | 400 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | 1 ms |
| DCI-P3 coverage | 99% | 100% |
| Pixel density | 189 ppi | 234 ppi |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | No |
| Advanced Optimus | No | No |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 32 GB | 32 GB |
| RAM (base) | 32 GB | 16 GB |
| RAM type | DDR5 | LPDDR5X |
| RAM speed | 4,800 MHz | 6,400 MHz |
| Max. supported RAM | 64 GB | — |
| RAM slots | 2 | — |
| Upgradable RAM | Yes | No |
| SSD (up to) | 2,000 GB | 2,048 GB |
| SSD (base) | 2,000 GB | 512 GB |
| M.2 SSD slots | 2 | 2 |
| SSD interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 90 Wh | 74 Wh |
| Power adapter | 330 W | 170 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| Design & cooling | ||
| Weight | 2.67 kg | 1.75 kg |
| Thickness | 30 mm | 20.8 mm |
| Width | 355 mm | 327.5 mm |
| Depth | 266 mm | 249.1 mm |
| Body material | Aluminium | Aluminium |
| Colours | Black | Gray |
| Cooling fans | 2 | 2 |
| Vapor chamber cooling | No | No |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 56 dB | 52.5 dB |
| Ports & wireless | ||
| Thunderbolt or USB4 | No | No |
| 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 | Yes | No |
| SD card reader | Yes | Yes |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6 | Wi-Fi 6E |
| Bluetooth | 5.2 | 5.2 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | No |
| Key travel | 1.7 mm | 1.5 mm |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | No | No |
| Fingerprint reader | Yes | Yes |
| Audio | ||
| Speakers | 6 speakers | 2.0 |
| Dolby Atmos | Yes | No |
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