GPU comparison
NVIDIA H100 vs NVIDIA GB300.
Specs, performance and live cloud availability, side by side.
The short answer
Choose NVIDIA H100 if you want the Hopper architecture.
Choose NVIDIA GB300 if you need 288GB+ on a single GPU (208GB more than NVIDIA H100).
Compare another pair
vs
Hopper
NVIDIA H100
from$4.29/hr
Available now · 4 regions- Memory
- 80 GB HBM3
- FP16 tensor
- up to 989 TFLOPS
- Bandwidth
- up to 3.4 TB/s
Blackwell
NVIDIA GB300
Reserved capacity · on request- Memory
- 288 GB HBM3e
- FP16 tensor
- 2500 TFLOPS
- Bandwidth
- 8.0 TB/s
At a glance
Spec by spec. The longer bar is the better number.
Full specs
The complete spec sheet.
| Spec | NVIDIA H100 | NVIDIA GB300 |
|---|---|---|
| Architecture | Hopper | Blackwell |
| Memory | 80 GB | 288 GB |
| Memory type | HBM3 | HBM3e |
| Memory bandwidth | up to 3.4 TB/s | 8.0 TB/s |
| FP32 | up to 67 TFLOPS | 120 TFLOPS |
| FP16 tensor | up to 989 TFLOPS | 2500 TFLOPS |
| INT8 | up to 2400 TOPS | 4800 TOPS |
| TDP | up to 700 W | 1200 W |
| GPUs per node | 8 | 8 |
| Hourly price (live) | from $4.29/hr | Reserve on request |
Questions
H100 or GB300. What buyers ask first.
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