GPU Model Comparison
Select up to 4 GPUs to compare specs and live pricing side-by-side
Select GPUs to Compare (3/4)
H100 80GB
GH100 · TSMC 4N
VRAM
80 GB HBM3
Bandwidth
3350 GB/s
TDP
700 W
Released
2022
Interconnect
NVLink 4.0 / PCIe 5.0
Flagship data center GPU. Transformer Engine with FP8 support. SXM5 form factor for max bandwidth.
A100 80GB
GA100 · TSMC 7nm
VRAM
80 GB HBM2e
Bandwidth
2000 GB/s
TDP
400 W
Released
2020
Interconnect
NVLink 3.0 / PCIe 4.0
Workhorse of the AI era. Widely available, mature software support, excellent price/performance.
RTX 4090
AD102 · TSMC 4N
VRAM
24 GB GDDR6X
Bandwidth
1008 GB/s
TDP
450 W
Released
2022
Interconnect
PCIe 4.0
Consumer GPU with surprisingly strong FP32. No NVLink. Best $/TFLOP for budget workloads.
Performance Comparison
Full Spec Sheet
| Spec | H100 80GB | A100 80GB | RTX 4090 |
|---|---|---|---|
| Architecture | GH100 | GA100 | AD102 |
| Generation | Hopper | Ampere | Ada Lovelace |
| Process Node | TSMC 4N | TSMC 7nm | TSMC 4N |
| Transistors | 80B | 54.2B | 76.3B |
| VRAM | 80 GB | 80 GB | 24 GB |
| VRAM Type | HBM3 | HBM2e | GDDR6X |
| Mem Bandwidth | 3350 GB/s | 2000 GB/s | 1008 GB/s |
| FP32 | 67 TFLOPS | 19.5 TFLOPS | 82.6 TFLOPS |
| FP16 | 1979 TFLOPS | 312 TFLOPS | 165.2 TFLOPS |
| BF16 | 1979 TFLOPS | 312 TFLOPS | 165.2 TFLOPS |
| FP8 | 3958 TFLOPS | — | — |
| INT8 | 3958 TOPS | 624 TOPS | 330.3 TOPS |
| NVLink BW | 900 GB/s | 600 GB/s | — |
| Interconnect | NVLink 4.0 / PCIe 5.0 | NVLink 3.0 / PCIe 4.0 | PCIe 4.0 |
| TDP | 700 W | 400 W | 450 W |
| Released | 2022 | 2020 | 2022 |
Best Use Cases
H100 80GB
- ▸LLM training
- ▸Large-scale inference
- ▸Scientific HPC
A100 80GB
- ▸ML training
- ▸Large model inference
- ▸HPC workloads
RTX 4090
- ▸Fine-tuning small models
- ▸Inference up to 13B
- ▸Cost-sensitive workloads