Lenovo Legion Slim 5 Gen 8 16 RTX 4050 (2023) vs MSI Katana A15 AI B8 RTX 4070 (2024)
What Legion Slim 5 Gen 8 16 RTX 4050 (2023) does better (10) and where Katana A15 AI B8 RTX 4070 (2024) wins (13) — every spec side by side.
vs
4.0Graphics6.7
4.7Overall performance6.1
5.9Display4.0
4.9Memory & storage3.2
6.9Battery & portability3.9
6.4Features & cooling3.8
Dimensions
Size comparison
Legion Slim 5 Gen 8 16 RTX 4050 (2023)Katana A15 AI B8 RTX 4070 (2024)
| Legion Slim 5 Gen 8 16 RTX 4050 (2023) | Katana A15 AI B8 RTX 4070 (2024) | Difference | |
|---|---|---|---|
| Depth | 260.3 mm | 259 mm | +1.3 mm |
| Width | 359.7 mm | 359 mm | +0.7 mm |
| Thickness | 25.2 mm | 25 mm | +0.2 mm |
| Weight | 2.3 kg | 2.2 kg | = |
Drawn to the same scale from the official dimensions (front and side).
Why is Legion Slim 5 Gen 8 16 RTX 4050 (2023) better than Katana A15 AI B8 RTX 4070 (2024)?
- RAM (up to)32 GB vs 16 GB2×
- Battery capacity80 Wh vs 54 Wh+50%
- SSD (up to)2,048 GB vs 1,000 GB2×
- USB-C charging (Power Delivery)Yes · Katana A15 AI B8 RTX 4070 (2024): No
- USB-C ports2 vs 12×
- SD card readerYes · Katana A15 AI B8 RTX 4070 (2024): No
- Brightness300 nits vs 250 nits+20%
- Wi-Fi standardWi-Fi 6E vs Wi-Fi 6+8%
- Webcam1,080p vs 720p+50%
- Screen size16″ vs 15.6″+3%
Why is Katana A15 AI B8 RTX 4070 (2024) better than Legion Slim 5 Gen 8 16 RTX 4050 (2023)?
- GPU compute (FP32)11.7 TFLOPS vs 18.2 TFLOPS+56%
- 3DMark Steel Nomad Light7,998 vs 12,396+55%
- GPU shader cores2,560 vs 4,608+80%
- GPU power (TGP)100 W vs 105 W+5%
- Video memory6 GB vs 8 GB+33%
- CPU cores6 vs 8+33%
- Weight2.3 kg vs 2.25 kg+2%
- RAM (base)8 GB vs 16 GB2×
- Max. supported RAM32 GB vs 64 GB2×
- SSD (base)512 GB vs 1,000 GB+95%
- USB-A ports2 vs 3+50%
- Fan noise (max. load)53.9 dB vs 50 dB+8%
Specifications
Side by side
| Graphics | ||
| Graphics card | GeForce RTX 4050 Laptop | GeForce RTX 4070 Laptop |
| GPU maker | NVIDIA | NVIDIA |
| GPU power (TGP) | 100 W | 105 W |
| Video memory | 6 GB | 8 GB |
| Video memory type | GDDR6 | GDDR6 |
| GPU shader cores | 2,560 | 4,608 |
| GPU compute (FP32) | 11.7 TFLOPS | 18.2 TFLOPS |
| 3DMark Steel Nomad Light | 7,998 | 12,396 |
| Processor | ||
| Processor | Ryzen 5 7640HS | Ryzen 9 8945HS |
| CPU maker | AMD | AMD |
| CPU cores | 6 | 8 |
| CPU threads | 12 | — |
| Max CPU clock | 5 GHz | 5.2 GHz |
| Processor options | Ryzen 5 7640HS, Ryzen 7 7840HS | Ryzen 7 8845HS, Ryzen 9 8945HS |
| Geekbench 6 multi-core | 10,447 | — |
| Geekbench 6 single-core | 2,528 | — |
| Cinebench 2024 multi-core | 764 | — |
| Display | ||
| Screen size | 16″ | 15.6″ |
| Resolution | 1920 × 1200 | 1920 × 1080 |
| Resolution class | Full HD (1080p/1200p) | Full HD (1080p/1200p) |
| Refresh rate | 144 Hz | 144 Hz |
| Panel type | IPS | IPS |
| Brightness | 300 nits | 250 nits |
| sRGB coverage | — | 69% |
| Response time | — | 3 ms |
| DCI-P3 coverage | — | 51% |
| Pixel density | 142 ppi | 141 ppi |
| Aspect ratio | 16:10 | 16:9 |
| G-Sync / FreeSync | Yes | Yes |
| Advanced Optimus | No | No |
| MUX switch | Yes | Yes |
| HDR | No | No |
| Touchscreen | No | No |
| Memory & storage | ||
| RAM (up to) | 32 GB | 16 GB |
| RAM (base) | 8 GB | 16 GB |
| RAM type | DDR5 | DDR5 |
| RAM speed | 5,600 MHz | 5,600 MHz |
| Max. supported RAM | 32 GB | 64 GB |
| RAM slots | 2 | 2 |
| Upgradable RAM | Yes | Yes |
| SSD (up to) | 2,048 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 | 80 Wh | 54 Wh |
| Power adapter | 230 W | 200 W |
| USB-C charging (Power Delivery) | Yes | No |
| Design & cooling | ||
| Weight | 2.3 kg | 2.25 kg |
| Thickness | 25.2 mm | 25 mm |
| Width | 359.7 mm | 359 mm |
| Depth | 260.3 mm | 259 mm |
| Body material | Aluminium, Plastic | Plastic |
| Colours | Gray | Black |
| Cooling fans | 2 | 2 |
| Vapor chamber cooling | No | No |
| Liquid metal (CPU) | No | No |
| Fan noise (max. load) | 53.9 dB | 50 dB |
| Ports & wireless | ||
| Thunderbolt or USB4 | No | No |
| USB-C ports | 2 | 1 |
| USB-A ports | 2 | 3 |
| HDMI | HDMI 2.1 | HDMI 2.1 |
| HDMI 2.1 | Yes | Yes |
| (Mini) DisplayPort | No | No |
| Ethernet | — | 1 Gbit/s |
| Ethernet port | Yes | Yes |
| SD card reader | Yes | No |
| 3.5 mm audio jack | Yes | Yes |
| Wi-Fi standard | Wi-Fi 6E | Wi-Fi 6 |
| Bluetooth | 5.2 | 5.3 |
| Keyboard & camera | ||
| Backlit keyboard | Yes | Yes |
| Numeric keypad | Yes | Yes |
| Key travel | 1.5 mm | 1.5 mm |
| Webcam | 1,080p | 720p |
| IR camera (face login) | No | No |
| Fingerprint reader | No | No |
| Audio | ||
| Speakers | 2.0 | 2 speakers |
| Dolby Atmos | No | No |
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