Architecture is the same on both: Blackwell. NVIDIA GeForce RTX 5090 Laptop GPU leads on Memory: 24 GB against 16 GB. NVIDIA GeForce RTX 5080 Laptop GPU leads on Power Consumption: 80-150 W against 95-150 W. Local AI (comfortable): NVIDIA GeForce RTX 5080 Laptop GPU Qwen3.5 9B, NVIDIA GeForce RTX 5090 Laptop GPU gpt-oss-20b.
The percentages are Kacbu Match scores: computed from official specifications for that use, with no price in them.
| NVIDIANVIDIA GeForce RTX 5080 Laptop GPUNo reviews yet | NVIDIANVIDIA GeForce RTX 5090 Laptop GPUNo reviews yet | |
|---|---|---|
| Key Differences | ||
| Architecture | Blackwell | Blackwell |
| Memory | 16 GB | 24 GB |
| Power Consumption | 80-150 W | 95-150 W |
| Local AI (comfortable) | Qwen3.5 9B | gpt-oss-20b |
| Graphics Processor | ||
| Architecture | Blackwell | Blackwell |
| Processing Unit | 7680 | 10496 |
| Memory | ||
| Memory Size | 16 GB | 24 GB |
| Memory Type | GDDR7 | GDDR7 |
| Memory Bus | 256 bit | 256 bit |
| Power | ||
| Power Consumption | 80-150 W | 95-150 W |
NVIDIA GeForce RTX 5090 Laptop GPU leads on 2 of 3 compared specs.
This table is based on manufacturers official specifications. Winning on paper does not always mean a difference in everyday use.