The cheapest RTX 3090 on the table right now is $0.047 per GPU-hour at Vast.ai (spot), out of 10 offers from 5 providers. The RTX 3090 carries 24 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 $0.090 to $0.500 per GPU-hour — a 5.6× 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 $0.090 at Salad Cloud · spot $0.047 at Vast.ai.
| Provider | Tier | $/GPU-hr | Pricing | Node | Commit | In stock | |
|---|---|---|---|---|---|---|---|
| Vast.ai | marketplace | $0.047 | spot | 2× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.067 | spot | 1× GPU | — | yes | rent |
| Salad Cloud | marketplace | $0.090 | on-demand | 1× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.096 | on-demand | 1× GPU | — | yes | rent |
| Vast.ai | marketplace | $0.121 | on-demand | 2× GPU | — | yes | rent |
| GPU.ai | dedicated | $0.210 | on-demand | 1× GPU | — | yes | rent |
| Runpod Community | marketplace | $0.220 | on-demand | 1× GPU | — | yes | rent |
| Runpod Community | marketplace | $0.220 | spot | 1× GPU | — | yes | rent |
| Runpod | dedicated | $0.500 | on-demand | 1× GPU | — | yes | rent |
| Runpod | dedicated | $0.500 | spot | 1× GPU | — | yes | rent |
How much does an RTX 3090 cost per hour?
As of the latest scrape, $0.047 per GPU-hour at Vast.ai is the cheapest RTX 3090 offer across 5 tracked cloud providers. The cheapest on-demand rate is $0.090 per GPU-hour at Salad Cloud, and the most expensive on-demand rate is $0.500 at Runpod.
Which cloud is cheapest for the RTX 3090?
Vast.ai at $0.047 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 3090 capacity cheaper?
Yes — the cheapest spot RTX 3090 is $0.047 per GPU-hour at Vast.ai, -48% versus the cheapest on-demand rate of $0.090. 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 3090 have?
24 GB, on the Ampere architecture. Multi-GPU instances multiply that: an 8× RTX 3090 node exposes 192 GB of GPU memory in total.