NVIDIA A100 SXM4 80GB vs NVIDIA RTX A6000 48GB
The A100 delivers 2.0x the FP16 throughput of the RTX A6000 (312 vs 155 TFLOPS dense). The A100 also carries 32 GB more memory (80 GB vs 48 GB).
NVIDIA A100 SXM4 80GB
Full specs →NVIDIA RTX A6000 48GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
Both GPUs launched in 2020: the A100 on Ampere and the RTX A6000 on Ampere.
Dense throughput for the A100 against the RTX A6000: FP64 9.7 vs 0.6 TFLOPS, FP32 20 vs 39 TFLOPS, FP16 312 vs 155 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 80 GB against 48 GB, fed at 2.0 TB/s versus 768 GB/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 A100 and 300 W for the RTX A6000. At FP32 that works out to 0.05 against 0.13 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 A100 faster than the RTX A6000?
At FP16 precision the A100 reaches 312 TFLOPS dense against 155 TFLOPS for the RTX A6000. The performance table on this page lists every published precision for both GPUs.
Which has more memory, the A100 or the RTX A6000?
The A100 carries 80 GB of VRAM versus 48 GB for the RTX A6000. Memory bandwidth is 2.0 TB/s for the A100 and 768 GB/s for the RTX A6000.
How much power do the A100 and the RTX A6000 draw?
The A100 is rated at 400 W TDP and the RTX A6000 at 300 W. On FP32 throughput per watt, the RTX A6000 is the more efficient part.
Can I rent the A100 or the RTX A6000 in the cloud?
Yes. Live cloud listings tracked by Flopper start at $0.30 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.
Where to Rent
NVIDIA A100 SXM4 80GB
| Provider | Instance | Price/GPU-hr | Checked | |
|---|---|---|---|---|
 | 1A100.22V (spot) | $0.90 | 3h ago | View → |
 | nvidia-a100 (spot) | $1.21 | 3h ago | View → |
 | gpu_1x_a100_SXM4 | $1.38 | 3h ago | View → |
 | A100 SXM (Community Cloud) | $1.39 | 3h ago | View → |
 | A100_40GB_SXM_8x | $1.40 | 3h ago | View → |
| | A100_80GB_SXM_1x | $1.40 | 3h ago | View → |
| | A100 SXM (Secure Cloud) | $1.59 | 3h ago | View → |
 | — | $1.60 | 3h ago | View → |
| | 1A100.22V (on-demand) | $1.79 | 3h ago | View → |
 | gpu_1x_a100_sxm4 | $1.99 | 3h ago | View → |
 | — | $2.30 | 3h ago | View → |
| | nvidia-a100 (on-demand) | $2.70 | 3h ago | View → |
| | gpu_8x_a100_80gb_sxm4 | $2.79 | 3h ago | View → |
Excess Supply | gpu_8x_a100_80gb_sxm4 | $3.00 | 3h ago | View → |
 | A100 | $3.19 | 3h ago | View → |
| | A100-80G | $3.28 | 3h ago | View → |
 | ND96ams A100 v4 | $4.10 | 3h ago | View → |
| | ND96amsr A100 v4 | $4.10 | 3h ago | View → |
NVIDIA RTX A6000 48GB
| Provider | Instance | Price/GPU-hr | Checked | |
|---|---|---|---|---|
| | 1A6000.10V (spot) | $0.30 | 3h ago | View → |
| | RTX A6000 (Community Cloud) | $0.33 | 3h ago | View → |
| | — | $0.40 | 3h ago | View → |
| | — | $0.50 | 3h ago | View → |
| | RTX A6000 (Secure Cloud) | $0.53 | 3h ago | View → |
| | gpu_1x_A6000_high_perf | $0.57 | 3h ago | View → |
| | 1A6000.10V (on-demand) | $0.61 | 3h ago | View → |
| | A6000 | $1.93 | 3h ago | View → |
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