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NVIDIA A800 PCIe 80GB vs NVIDIA RTX A2000 6GB

The A800 delivers 2.4x the FP32 throughput of the RTX A2000 (20 vs 8 TFLOPS dense). The A800 also carries 74 GB more memory (80 GB vs 6 GB).

A800: Ampere, 2022 RTX A2000: Ampere, 2021
FP32 dense lead
2.4x
A800: 20 vs 8 TFLOPS
Memory
80 vs 6 GB
74 GB more for the A800
Bandwidth
1.9 TB/s vs 288 GB/s
A800 moves data faster
TDP
300 W vs 70 W
RTX A2000 draws 230 W less
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NVIDIA A800 PCIe 80GB vs NVIDIA RTX A2000 6GB

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NVIDIA A800 PCIe 80GB

Leads on FP32 Full specs →

What is the NVIDIA A800?

The A800 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 full specifications →

Can I rent the A800 in the cloud?

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

How does the A800 compare with other accelerators?

This page sets the A800 against the RTX A2000. The A800 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. Flopper also compares it head to head with the A800 SXM4, across every published precision, memory and power. A800 vs A800 SXM4 →

Where do the A800 figures come from?

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

NVIDIA RTX A2000 6GB

Full specs →

What is the NVIDIA RTX A2000?

The RTX A2000 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. RTX A2000 full specifications →

Can I rent the RTX A2000 in the cloud?

Flopper is not tracking any live rental listings for the RTX A2000 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the RTX A2000 compare with other accelerators?

This page sets the RTX A2000 against the A800. The RTX A2000 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 RTX A2000 figures come from?

Every RTX A2000 figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

Specifications

A800
RTX A2000
Architecture
AmpereAmpere
Launch Year
20222021
Form Factor
PCIePCIe
Memory
80 GB6 GB
Memory Bandwidth
1.9 TB/s288 GB/s
TDP
300 W70 W
Process Node
7nm8nm

Performance (TFLOPS)

A800
RTX A2000
9.7 TFLOPS 0.1 TFLOPS
20 TFLOPS 8 TFLOPS
156 TFLOPS
sparse not published
 No verified data available
312 TFLOPS
sparse not published
 No verified data available
312 TFLOPS
sparse not published
 The vendor publishes only the 2:4 sparse figure for this precision
64 TFLOPS sparse
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
sparse not published
 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 A800 is the newer part: Ampere (2022) against the RTX A2000's Ampere (2021).

The A800 carries 74 GB more memory (80 GB against 6 GB), so larger models fit on one GPU before you shard. Bandwidth is 1.9 TB/s against 288 GB/s, which sets the ceiling on decode speed.

Power is 300 W against 70 W, and at FP32 the RTX A2000 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 faster than the RTX A2000?

At FP32 precision the A800 reaches 20 TFLOPS dense against 8 TFLOPS for the RTX A2000. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the A800 or the RTX A2000?

Choose the A800 for training and high-throughput inference: it has 2.4x the FP32 throughput of the RTX A2000. It also carries 74 GB more memory, so larger models fit on one GPU before you shard. The A800 draws 230 W more power, so budget for cooling and power delivery before you commit.

Which has more memory, the A800 or the RTX A2000?

The A800 carries 80 GB of memory versus 6 GB for the RTX A2000. Memory bandwidth is 1.9 TB/s for the A800 and 288 GB/s for the RTX A2000.

How much power do the A800 and the RTX A2000 draw?

The A800 is rated at 300 W TDP and the RTX A2000 at 70 W. On FP32 throughput per watt, the RTX A2000 is the more efficient part.

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