NVIDIA H100 PCIe 80GB vs NVIDIA H20 96GB
The H100 delivers 5.1x the FP8 throughput of the H20 (1,513 vs 296 TFLOPS dense). The H20 counters with 16 GB more memory (96 GB vs 80 GB).
NVIDIA H100 PCIe 80GB
Full specs →NVIDIA H20 96GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
The H20 is the newer part: Hopper, launched in 2024, against the H100's Hopper from 2022. Newer architectures typically add lower-precision formats and better throughput per watt, so check the precision rows your workload actually uses.
Dense throughput for the H100 against the H20: FP64 26 vs 1 TFLOPS, FP32 51 vs 44 TFLOPS, FP16 757 vs 148 TFLOPS, FP8 1,513 vs 296 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 80 GB against 96 GB, fed at 2.0 TB/s versus 4.0 TB/s. More memory per GPU means larger models fit before you have to shard across cards, which often matters more than raw TFLOPS for inference.
Power budgets are 350 W for the H100 and 400 W for the H20. At FP32 that works out to 0.15 against 0.11 TFLOPS per watt.
For LLM training and inference, weight the FP8 and FP16 rows and memory capacity most heavily. For scientific and HPC workloads, the FP64 row is the one to read.
Frequently asked questions
Is the H100 faster than the H20?
At FP8 precision the H100 reaches 1,513 TFLOPS dense against 296 TFLOPS for the H20. The performance table on this page lists every published precision for both GPUs.
Which has more memory, the H100 or the H20?
The H20 carries 96 GB of memory versus 80 GB for the H100. Memory bandwidth is 2.0 TB/s for the H100 and 4.0 TB/s for the H20.
How much power do the H100 and the H20 draw?
The H100 is rated at 350 W TDP and the H20 at 400 W. On FP32 throughput per watt, the H100 is the more efficient part.
Can I rent the H100 or the H20 in the cloud?
Yes. Live cloud listings tracked by Flopper start at $1.99 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.
Where to Rent
NVIDIA H100 PCIe 80GB
| Provider | Configuration | Price/GPU-hr | Checked | |
|---|---|---|---|---|
 RunPod | 1× H100 PCIe Community | $1.99 | 2h ago | View → |
 Hyperstack | 1× H100 PCIe Spot | $2.00 | 2h ago | View → |
 Vast.ai | 2× H100 PCIe Community | $2.00 | 2h ago | View → |
| Hyperstack | 1× H100 PCIe | $2.50 | 2h ago | View → |
| RunPod | 1× H100 PCIe | $2.89 | 2h ago | View → |
 Lambda Labs | 1× H100 PCIe | $3.29 | 2h ago | View → |
 Scaleway | 1× H100 PCIe | $3.32 | 2h ago | View → |
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