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NVIDIA H100 NVL 94GB vs NVIDIA H800 PCIe 80GB

The H100 delivers 18% more FP32 throughput than the H800 (60 vs 51 TFLOPS dense). The H100 also carries 14 GB more memory (94 GB vs 80 GB).

H100: Hopper, 2023 H800: Hopper, 2022
FP32 dense lead
+18%
H100: 60 vs 51 TFLOPS
Memory
94 vs 80 GB
14 GB more for the H100
Bandwidth
3.9 TB/s vs 2.0 TB/s
H100 moves data faster
TDP
400 W vs 350 W
H800 draws 50 W less
See rental pricing from $2.06/hr Download comparison sheet

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NVIDIA H100 NVL 94GB vs NVIDIA H800 PCIe 80GB

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NVIDIA H100 NVL 94GB

Leads on FP32 Full specs →

What is the NVIDIA H100?

The H100 is a GPU from NVIDIA on the Hopper architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. H100 full specifications →

Can I rent the H100 in the cloud?

Yes. Cloud providers tracked by Flopper rent the H100 by the hour, and the pricing page compares their current rates and the price history side by side. H100 rental prices →

How does the H100 compare with other accelerators?

This page sets the H100 against the H800. The H100 is the newer generation of the two. Both are NVIDIA parts, and both ship as a PCIe card, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the H100 figures come from?

Every H100 figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

NVIDIA H800 PCIe 80GB

Full specs →

What is the NVIDIA H800?

The H800 is a GPU from NVIDIA on the Hopper architecture, an accelerator for AI training, inference and high-performance computing. It is a PCIe add-in card, so it fits standard servers and workstations. H800 full specifications →

Can I rent the H800 in the cloud?

Flopper is not tracking any live rental listings for the H800 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the H800 compare with other accelerators?

This page sets the H800 against the H100. The H800 is the older generation of the two. Both are NVIDIA parts, and both ship as a PCIe card, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the H800 figures come from?

Every H800 figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

Specifications

H100
H800
Architecture
HopperHopper
Launch Year
20232022
Form Factor
PCIePCIe
Memory
94 GB80 GB
Memory Bandwidth
3.9 TB/s2.0 TB/s
TDP
400 W350 W
Process Node
4nm4nm

Performance (TFLOPS)

H100
H800
30 TFLOPS 0.8 TFLOPS
60 TFLOPS 51 TFLOPS
The vendor publishes only the 2:4 sparse figure for this precision
835 TFLOPS sparse
378 TFLOPS
sparse not published
The vendor publishes only the 2:4 sparse figure for this precision
1,671 TFLOPS sparse
757 TFLOPS
sparse not published
The vendor publishes only the 2:4 sparse figure for this precision
1,671 TFLOPS sparse
757 TFLOPS
sparse not published
The vendor publishes only the 2:4 sparse figure for this precision
3,341 TFLOPS sparse
1,513 TFLOPS
sparse not published
FP6
No verified data available No verified data available
No verified data available No verified data available
The vendor publishes only the 2:4 sparse figure for this precision
3,341 TOPS sparse
1,513 TOPS
sparse not published
Tensor Core
60 TFLOPS No verified data available

Figures are dense. Where a vendor publishes a figure it sits under the dense one and never decides a winner. Hover any precision for its definition, or read the GPU glossary.

FLOPS by Precision

What actually differs

The H100 is the newer part: Hopper (2023) against the H800's Hopper (2022).

The H100 carries 14 GB more memory (94 GB against 80 GB), so larger models fit on one GPU before you shard. Bandwidth is 3.9 TB/s against 2.0 TB/s, which sets the ceiling on decode speed.

Power is 400 W against 350 W, and at FP32 the H100 does more work per watt. Weight the FP8 and FP16 rows for LLM work and the FP64 row for HPC.

New to the terms? The glossary explains FP64, FP32, TF32, BF16, FP16, FP8, INT8, Sparsity and TFLOPS. For how the generations relate, see NVIDIA architectures explained.

Frequently asked questions

Is the H100 faster than the H800?

At FP32 precision the H100 reaches 60 TFLOPS dense against 51 TFLOPS for the H800. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the H100 or the H800?

Choose the H100 for training and high-throughput inference: it has 18% more FP32 throughput than the H800. It also carries 14 GB more memory, so larger models fit on one GPU before you shard. The H100 draws 50 W more power, so budget for cooling and power delivery before you commit.

Which has more memory, the H100 or the H800?

The H100 carries 94 GB of memory versus 80 GB for the H800. Memory bandwidth is 3.9 TB/s for the H100 and 2.0 TB/s for the H800.

How much power do the H100 and the H800 draw?

The H100 is rated at 400 W TDP and the H800 at 350 W. On FP32 throughput per watt, the H100 is the more efficient part.

How much do the H100 and the H800 cost to rent?

Live cloud listings tracked by Flopper price the H100 from $2.06 per GPU-hour across 5 providers, and no live listings yet for the H800. The rental section on this page links to every provider, rate and the price history for each GPU.

Where to Rent

NVIDIA H100 NVL 94GB

Rent from

$2.06 / GPU-hr

Lowest of 9 live listings across 5 providers · median $3.17

See all H100 rental prices →

Price history and every provider on the pricing page. Some links are affiliate links.

NVIDIA H800 PCIe 80GB

No live rental listings tracked for the H800 yet.

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