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NVIDIA GB10 Grace Blackwell vs NVIDIA GeForce RTX 5090
Side-by-side comparison of specifications, performance, and efficiency.
NVIDIA GB10 Grace Blackwell
Architecture
Blackwell
Year
2025
VRAM
128 GB
TDP
180 W
NVIDIA GeForce RTX 5090
Architecture
Blackwell
Year
2025
VRAM
32 GB
TDP
575 W
Specifications
NVIDIA GB10 Grace Blackwell NVIDIA GeForce RTX 5090
Architecture
Blackwell Blackwell
Launch Year
2025 2025
Form Factor
Integrated PCIe
VRAM
128 GB32 GB
Memory Bandwidth
273 GB/s1.8 TB/s
TDP
180 W575 W
Process Node
— 4nm
| Spec | NVIDIA GB10 Grace Blackwell | NVIDIA GeForce RTX 5090 |
|---|---|---|
| Architecture | Blackwell | Blackwell |
| Launch Year | 2025 | 2025 |
| Form Factor | Integrated | PCIe |
| VRAM | 128 GB | 32 GB |
| Memory Bandwidth | 273 GB/s | 1.8 TB/s |
| TDP | 180 W | 575 W |
| Process Node | — | 4nm |
Performance (TFLOPS)
NVIDIA GB10 Grace Blackwell NVIDIA GeForce RTX 5090
FP64
—1.6 TFlops
FP32
31.0 TFlops 104.8 TFlops
FP16
—419.1 TFlops
sparse not published
BF16
—419.1 TFlops
sparse not published
FP8
—838.2 TFlops
sparse not published
INT8
—838.2 TFlops
sparse not published
| Precision | NVIDIA GB10 Grace Blackwell | NVIDIA GeForce RTX 5090 |
|---|---|---|
| FP64 | — | 1.6 TFlops |
| FP32 | 31.0 TFlops | 104.8 TFlops |
| FP16 | — | 419.1 TFlops sparse not published |
| BF16 | — | 419.1 TFlops sparse not published |
| FP8 | — | 838.2 TFlops sparse not published |
| INT8 | — | 838.2 TFlops sparse not published |
FLOPS by Precision
Efficiency — TDP vs FP32 Performance
Analysis
Most Efficient
NVIDIA
GeForce RTX 5090
0.18 TFLOPS/W
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