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NVIDIA A800 SXM4 vs NVIDIA A800 PCIe 80GB

The A800 SXM4 and the A800 PCIe 80GB deliver near-identical FP16 throughput (312 vs 312 TFLOPS dense).

A800 SXM4: Ampere, 2022 A800 PCIe 80GB: Ampere, 2022
Memory
80 vs 80 GB
Same capacity
Bandwidth
2.0 TB/s vs 1.9 TB/s
A800 SXM4 moves data faster
TDP
400 W vs 300 W
A800 PCIe 80GB draws 100 W less
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NVIDIA A800 SXM4 vs NVIDIA A800 PCIe 80GB

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NVIDIA A800 SXM4

Full specs →

What is the NVIDIA A800 SXM4?

The A800 SXM4 is a GPU from NVIDIA on the Ampere architecture, an accelerator for AI training, inference and high-performance computing. It is an SXM module, the mezzanine format used in dense multi-GPU servers. It is no longer sold new, though it remains available to rent and second-hand. A800 SXM4 full specifications →

Can I rent the A800 SXM4 in the cloud?

Flopper is not tracking any live rental listings for the A800 SXM4 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the A800 SXM4 compare with other accelerators?

This page sets the A800 SXM4 against the A800 PCIe 80GB. Both parts launched in the same year. Both are NVIDIA parts; the A800 SXM4 is an SXM module while the A800 PCIe 80GB is a PCIe card. Flopper also compares it head to head with the A100 SXM4 80GB, across every published precision, memory and power. A800 SXM4 vs A100 SXM4 80GB →

Where do the A800 SXM4 figures come from?

Every A800 SXM4 figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

NVIDIA A800 PCIe 80GB

Full specs →

What is the NVIDIA A800 PCIe 80GB?

The A800 PCIe 80GB is a GPU from NVIDIA on the Ampere 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. A800 PCIe 80GB full specifications →

Can I rent the A800 PCIe 80GB in the cloud?

Flopper is not tracking any live rental listings for the A800 PCIe 80GB yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the A800 PCIe 80GB compare with other accelerators?

This page sets the A800 PCIe 80GB against the A800 SXM4. Both parts launched in the same year. Both are NVIDIA parts; the A800 PCIe 80GB is a PCIe card while the A800 SXM4 is an SXM module. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the A800 PCIe 80GB figures come from?

Every A800 PCIe 80GB figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

Specifications

A800 SXM4
A800 PCIe 80GB
Architecture
AmpereAmpere
Launch Year
20222022
Form Factor
SXMPCIe
Memory
80 GB80 GB
Memory Bandwidth
2.0 TB/s1.9 TB/s
TDP
400 W300 W
Process Node
7nm7nm

Performance (TFLOPS)

A800 SXM4
A800 PCIe 80GB
9.7 TFLOPS 9.7 TFLOPS
20 TFLOPS 20 TFLOPS
156 TFLOPS
312 TFLOPS sparse
156 TFLOPS
sparse not published
312 TFLOPS
624 TFLOPS sparse
312 TFLOPS
sparse not published
312 TFLOPS
624 TFLOPS sparse
312 TFLOPS
sparse not published
No verified data available No verified data available
FP6
No verified data available No verified data available
No verified data available No verified data available
624 TOPS
1,248 TOPS sparse
624 TOPS
sparse not published

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

Both launched in 2022, the A800 SXM4 on Ampere and the A800 PCIe 80GB on Ampere.

Both carry 80 GB of memory. Bandwidth is 2.0 TB/s against 1.9 TB/s, which sets the ceiling on decode speed.

Power is 400 W against 300 W, and at FP32 the A800 PCIe 80GB 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, INT8, Sparsity and TFLOPS. For how the generations relate, see NVIDIA architectures explained.

Frequently asked questions

Is the A800 SXM4 faster than the A800 PCIe 80GB?

They are close on paper: both deliver about 312 TFLOPS of dense FP16 throughput. Memory, bandwidth, and power are the deciding differences.

Which should you choose, the A800 SXM4 or the A800 PCIe 80GB?

On raw FP16 throughput the A800 SXM4 and the A800 PCIe 80GB are level, so the decision rests on memory, power and price. The A800 PCIe 80GB draws 100 W less power, which matters in an air-cooled or power-capped rack. Packaging differs too: the A800 SXM4 is an SXM module while the A800 PCIe 80GB is a PCIe card, so check what your servers accept.

Which has more memory, the A800 SXM4 or the A800 PCIe 80GB?

Both GPUs carry 80 GB of memory. Memory bandwidth is 2.0 TB/s for the A800 SXM4 and 1.9 TB/s for the A800 PCIe 80GB.

How much power do the A800 SXM4 and the A800 PCIe 80GB draw?

The A800 SXM4 is rated at 400 W TDP and the A800 PCIe 80GB at 300 W. On FP32 throughput per watt, the A800 PCIe 80GB is the more efficient part.

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