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).
NVIDIA A800 SXM4
Full specs →NVIDIA A800 PCIe 80GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
Both GPUs launched in 2022: the A800 SXM4 on Ampere and the A800 PCIe 80GB on Ampere.
Dense throughput for the A800 SXM4 against the A800 PCIe 80GB: FP64 9.7 vs 9.7 TFLOPS, FP32 20 vs 20 TFLOPS, FP16 312 vs 312 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 80 GB against 80 GB, fed at 2.0 TB/s versus 1.9 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 400 W for the A800 SXM4 and 300 W for the A800 PCIe 80GB. At FP32 that works out to 0.05 against 0.07 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 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 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.
Can I rent the A800 SXM4 or the A800 PCIe 80GB in the cloud?
Yes. Live cloud listings tracked by Flopper start at $0.88 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.
Where to Rent
NVIDIA A800 PCIe 80GB
All A800 PCIe 80GB listings and price history →
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