NVIDIA RTX A2000 6GB vs NVIDIA A40 48GB
The A40 delivers 4.7x the FP32 throughput of the RTX A2000 (37 vs 8 TFLOPS dense). The A40 also carries 42 GB more memory (48 GB vs 6 GB).
NVIDIA RTX A2000 6GB
Full specs →NVIDIA A40 48GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
Both GPUs launched in 2021: the RTX A2000 on Ampere and the A40 on Ampere.
Dense throughput for the RTX A2000 against the A40: FP32 8 vs 37 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 6 GB against 48 GB, fed at 288 GB/s versus 696 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 70 W for the RTX A2000 and 300 W for the A40. At FP32 that works out to 0.11 against 0.12 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 RTX A2000 faster than the A40?
At FP32 precision the A40 reaches 37 TFLOPS dense against 8 TFLOPS for the RTX A2000. The performance table on this page lists every published precision for both GPUs.
Which has more memory, the RTX A2000 or the A40?
The A40 carries 48 GB of VRAM versus 6 GB for the RTX A2000. Memory bandwidth is 288 GB/s for the RTX A2000 and 696 GB/s for the A40.
How much power do the RTX A2000 and the A40 draw?
The RTX A2000 is rated at 70 W TDP and the A40 at 300 W. On FP32 throughput per watt, the A40 is the more efficient part.
Can I rent the RTX A2000 or the A40 in the cloud?
Yes. Live cloud listings tracked by Flopper start at $0.35 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.
Where to Rent
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