A40 vs RTX PRO 6000 WS: Specs, VRAM & Price
Short answer: choose the RTX PRO 6000 WS when 96 GB of VRAM is the gating requirement. Choose the A40 when 48 GB is enough for the workload and the lower hourly rate points that way.
The A40 has 48 GB of VRAM; the RTX PRO 6000 WS has 96 GB.
You can rent both by the hour, no purchase required. A40 from $0.539/GPU/hr across 1 provider; RTX PRO 6000 WS from $1.21/GPU/hr across 1 provider. The A40 is 55% cheaper at the entry rate.
A40
Good for training and inference on models that don't need FP8 kernels
RTX PRO 6000 WS
Good for training and serving frontier-scale LLMs
Last updated: 2026-10-07 22:00:48 UTCRefreshes hourly
Specs side by side
| Spec | A40 | RTX PRO 6000 WS |
|---|---|---|
| VRAM | 48 GB | 96 GB |
| Memory bandwidth | – | 1,792 GB/s |
| Architecture | Ampere | Blackwell |
| Compute capability | 8.6 | 12.0 |
| Precisions in hardware | FP32, FP16, BF16, INT4 | FP32, FP16, BF16, FP8, INT4 |
| Max board power (TDP) | – | 600W |
| Providers | 1 | 1 |
| Regions | 1 | 1 |
On-demand price
| Rate | A40 | RTX PRO 6000 WS |
|---|---|---|
| Lowest per GPU/hr | $0.539/GPU/hr | $1.21/GPU/hr (cheapest overall) |
Which is better for AI: A40 or RTX PRO 6000 WS?
Choose the RTX PRO 6000 WS when 96 GB of VRAM is the gating requirement. Choose the A40 when 48 GB is enough for the workload and the lower hourly rate points that way.
A40 vs RTX PRO 6000 WS: common questions
Is the A40 or the RTX PRO 6000 WS better for AI?
Short answer: choose the RTX PRO 6000 WS when 96 GB of VRAM is the gating requirement. Choose the A40 when 48 GB is enough for the workload and the lower hourly rate points that way.
Is the A40 or the RTX PRO 6000 WS cheaper to rent?
On Aquanode's live marketplace the A40 starts at $0.539/GPU/hr (median $0.539/GPU/hr across 1 provider) and the RTX PRO 6000 WS starts at $1.21/GPU/hr (median $1.87/GPU/hr across 1 provider). The A40 is the cheaper of the two at the entry rate, by 55%.
What is the difference between the A40 and the RTX PRO 6000 WS?
The A40 has 48 GB of VRAM against the RTX PRO 6000 WS's 96 GB; the A40 is an Ampere part and the RTX PRO 6000 WS is Blackwell (compute capability 8.6 vs 12.0); only the RTX PRO 6000 WS supports FP8 compute. On price, the A40 lists from $0.539/GPU/hr and the RTX PRO 6000 WS from $1.21/GPU/hr.
How widely available are the A40 and the RTX PRO 6000 WS?
1 provider list the A40 and 1 list the RTX PRO 6000 WS, across 1 and 1 region respectively. No single provider currently lists both models.
How much does 1,000 GPU-hours cost on the A40 vs the RTX PRO 6000 WS?
At the lowest rates listed today, 1,000 GPU-hours costs $539 on the A40 and $1,210 on the RTX PRO 6000 WS, a difference of $671 for the same runtime. Rates are per GPU per hour and update hourly.
How much VRAM does the A40 have compared to the RTX PRO 6000 WS?
The A40 has 48 GB of VRAM; the RTX PRO 6000 WS has 96 GB.
How this comparison is calculated
Every price is normalized to a per-GPU hourly rate using the same pipeline as every other pricing surface on Aquanode, and only the cheapest qualifying offer per provider is shown. A dash means that provider does not currently list that GPU.
Architecture, compute capability and supported precisions come from each vendor's published datasheet for that generation, not from the marketplace feed. This page regenerates at most once per hour.
Memory bandwidth, tensor TFLOPS, NVLink/interconnect and max board power are the same verified-from-datasheet figures shown on each model's own A40 page and RTX PRO 6000 WS page, which link the primary vendor source for that model. A dash here means Aquanode hasn't verified that figure from a primary source yet, never a guess.
Go further
Check what fits in each card's memory with the A40 memory figure above and the RTX PRO 6000 WS VRAM calculator, or browse every model by generation in the GPU index.
More A40 comparisons
More RTX PRO 6000 WS comparisons
Related reading: H100 pricing and specs, The best GPUs for AI, ranked, and Best GPU for LLM inference.
