The cheapest RTX A4000 on the table right now is $0.053 per GPU-hour at Vast.ai (spot), out of 13 offers from 2 providers. The RTX A4000 carries 16 GB of VRAM on NVIDIA's Ampere generation. That is peer/marketplace capacity — rented from other users' machines, and not directly comparable to a dedicated instance.
On-demand pricing for the same card spans $0.073 to $0.160 per GPU-hour — a 2.2× spread between the cheapest and the most expensive provider for identical silicon. That gap is the entire reason this table exists.
Cheapest by pricing model: on-demand $0.073 at Vast.ai · spot $0.053 at Vast.ai.
| Provider | Tier | $/GPU-hr | Pricing | Node | Commit | In stock | |
|---|---|---|---|---|---|---|---|
| Vast.ai | marketplace | $0.053 | spot | 1, 2× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.073 | on-demand | 1× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.105 | spot | 4× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.107 | spot | 11× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.107 | on-demand | 4× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.108 | on-demand | 2× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.120 | spot | 8× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.121 | on-demand | 8× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.134 | on-demand | 11× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.149 | spot | 6× GPU | — | yes | rent |
| Hyperstack | dedicated | $0.150 | on-demand | 1× GPU | — | — | rent |
| Vast.ai | marketplace | $0.160 | on-demand | 6× GPU | — | yes | rent |
How much does an RTX A4000 cost per hour?
As of the latest scrape, $0.053 per GPU-hour at Vast.ai is the cheapest RTX A4000 offer across 2 tracked cloud providers. The cheapest on-demand rate is $0.073 per GPU-hour at Vast.ai, and the most expensive on-demand rate is $0.160 at Vast.ai.
Which cloud is cheapest for the RTX A4000?
Vast.ai at $0.053 per GPU-hour on spot capacity. Prices move constantly, so this page is regenerated from the live scrape every 15 minutes. Note that marketplace tiers are peer hardware and are not directly comparable to dedicated capacity.
Is spot RTX A4000 capacity cheaper?
Yes — the cheapest spot RTX A4000 is $0.053 per GPU-hour at Vast.ai, -27% versus the cheapest on-demand rate of $0.073. Spot instances can be reclaimed by the provider at any time, so they suit checkpointed training and batch inference rather than long-lived services.
How many GB of VRAM does the RTX A4000 have?
16 GB, on the Ampere architecture. Multi-GPU instances multiply that: an 8× RTX A4000 node exposes 128 GB of GPU memory in total.