Asus ROG Zephyrus G14 RTX 4090 (2023) vs Lenovo Legion Slim 7i Gen 8 RTX 4070 (2023)
What ROG Zephyrus G14 RTX 4090 (2023) does better (16) and where Legion Slim 7i Gen 8 RTX 4070 (2023) wins (16) — every spec side by side.
vs
9.5Graphics8.5
7.2Overall performance7.3
5.3Display6.2
6.1Memory & storage5.4
4.2Battery & portability7.9
7.7Features & cooling5.2
Dimensions
Size comparison
ROG Zephyrus G14 RTX 4090 (2023)Legion Slim 7i Gen 8 RTX 4070 (2023)
| ROG Zephyrus G14 RTX 4090 (2023) | Legion Slim 7i Gen 8 RTX 4070 (2023) | Difference | |
|---|---|---|---|
| Depth | 227 mm | 259.3 mm | −32.3 mm |
| Width | 312 mm | 357.7 mm | −45.7 mm |
| Thickness | 20.5 mm | 19.9 mm | +0.6 mm |
| Weight | 1.6 kg | 2 kg | −0.4 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is ROG Zephyrus G14 RTX 4090 (2023) better than Legion Slim 7i Gen 8 RTX 4070 (2023)?
- 3DMark Steel Nomad Light21,211 vs 12,920+64%
- GPU compute (FP32)34.1 TFLOPS vs 21.8 TFLOPS+56%
- GPU shader cores9,728 vs 4,6082.1×
- RAM (up to)48 GB vs 32 GB+50%
- Video memory16 GB vs 8 GB2×
- Weight1.65 kg vs 2 kg+21%
- Brightness400 nits vs 300 nits+33%
- Vapor chamber coolingYes · Legion Slim 7i Gen 8 RTX 4070 (2023): No
- Liquid metal (CPU)Yes · Legion Slim 7i Gen 8 RTX 4070 (2023): No
- IR camera (face login)Yes · Legion Slim 7i Gen 8 RTX 4070 (2023): No
- Dolby AtmosYes · Legion Slim 7i Gen 8 RTX 4070 (2023): No
- Response time3 ms vs 5 ms+67%
Why is Legion Slim 7i Gen 8 RTX 4070 (2023) better than ROG Zephyrus G14 RTX 4090 (2023)?
- Battery capacity76 Wh vs 100 Wh+31%
- Resolution classFull HD (1080p/1200p) vs QHD (1440p/1600p)
- GPU power (TGP)125 W vs 140 W+12%
- Refresh rate144 Hz vs 165 Hz+15%
- CPU cores8 vs 12+50%
- Geekbench 6 multi-core10,443 vs 11,653+12%
- Advanced OptimusNo · ROG Zephyrus G14 RTX 4090 (2023): Yes
- RAM (base)8 GB vs 16 GB2×
- M.2 SSD slots1 vs 22×
- Cinebench 2024 multi-core765 vs 807+5%
- Thickness20.5 mm vs 19.9 mm+3%
- USB-A ports2 vs 3+50%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 4090 Laptop | GeForce RTX 4070 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 125 W | 140 W |
| Video memory | 16 GB | 8 GB |
| Video memory type | GDDR6 | GDDR6 |
| GPU shader cores | 9,728 | 4,608 |
| GPU compute (FP32) | 34.1 TFLOPS | 21.8 TFLOPS |
| 3DMark Steel Nomad Light | 21,211 | 12,920 |
| Processor | ||
| Processor | Ryzen 7 7735HS | Core i5-13500H |
| CPU maker | AMD | Intel |
| CPU cores | 8 | 12 |
| CPU threads | 16 | 16 |
| Max CPU clock | 4.8 GHz | 4.7 GHz |
| Processor options | Ryzen 7 7735HS, Ryzen 9 7940HS | Core i5-13500H, Core i7-13700H, Core i9-13900H |
| Geekbench 6 multi-core | 10,443 | 11,653 |
| Geekbench 6 single-core | 2,216 | 2,537 |
| Cinebench 2024 multi-core | 765 | 807 |
| Display | ||
| Screen size | 14″ | 16″ |
| Resolution | 1920 × 1200 | 2560 × 1600 |
| Resolution class | Full HD (1080p/1200p) | QHD (1440p/1600p) |
| Refresh rate | 144 Hz | 165 Hz |
| Panel type | IPS | IPS |
| Brightness | 400 nits | 300 nits |
| sRGB coverage | 100% | 100% |
| Response time | 3 ms | 5 ms |
| Pixel density | 162 ppi | 189 ppi |
| Aspect ratio | 16:10 | 16:10 |
| G-Sync / FreeSync | Yes | Yes |
| Advanced Optimus | No | Yes |
| MUX switch | Yes | Yes |
| HDR | Yes | Yes |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 48 GB | 32 GB |
| RAM (base) | 8 GB | 16 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 4,800 MHz | 5,200 MHz |
| Max. supported RAM | 48 GB | 32 GB |
| RAM slots | 1 | 1 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 2,048 GB | 2,048 GB |
| SSD (base) | 512 GB | 512 GB |
| M.2 SSD slots | 1 | 2 |
| SSD interface | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Battery & power | ||
| Battery capacity | 76 Wh | 100 Wh |
| Power adapter | 240 W | 330 W |
| USB-C charging (Power Delivery) | Yes | Yes |
| Design & cooling | ||
| Weight | 1.65 kg | 2 kg |
| Thickness | 20.5 mm | 19.9 mm |
| Width | 312 mm | 357.7 mm |
| Depth | 227 mm | 259.3 mm |
| Body material | Aluminium | Aluminium |
| Colours | White, Black | White, Gray |
| Cooling fans | 2 | 2 |
| Vapor chamber cooling | Yes | No |
| Liquid metal (CPU) | Yes | No |
| Fan noise (max. load) | 52.2 dB | 54.4 dB |
| Ports & wireless | ||
| Thunderbolt / USB4 | USB4 | Thunderbolt 4 |
| Thunderbolt or USB4 | Yes | Yes |
| USB-C ports | 2 | 2 |
| USB-A ports | 2 | 3 |
| HDMI | HDMI 2.1 | HDMI 2.1 |
| HDMI 2.1 | Yes | Yes |
| (Mini) DisplayPort | No | No |
| Ethernet port | No | No |
| SD card reader | Yes | Yes |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6E | Wi-Fi 6E |
| Bluetooth | 5.3 | 5.3 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | No | Yes |
| Key travel | 1.7 mm | 1.5 mm |
| Webcam | 1,080p | 1,080p |
| IR camera (face login) | Yes | No |
| Fingerprint reader | No | Yes |
| Audio | ||
| Speakers | 2.2 | 2.0 |
| Dolby Atmos | Yes | No |
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