Best Cloud GPU for AI Video Generation
AI video models are memory-hungry because they generate many frames at once, so the sensible floor is 48GB and the value pick is an L40S, with an 80GB A100 at $0.89/hr or H100 at $1.99/hr for longer clips and higher resolution. A 24GB RTX 4090 at $0.69/hr handles short, low-resolution generations but runs out of memory fast. Buy VRAM first here; frame count and resolution both scale memory hard.
The picks, with live prices
| Pick | GPU | VRAM | On-demand from | Where | |
|---|---|---|---|---|---|
| value pick | L40S | 48 GB | $0.88 | Massed Compute on-demand | Rent → |
| scale pick | A100 | 80 GB | $0.89 | Jarvislabs on-demand | Rent → |
| performance pick | H100 | 94 GB | $1.99 | Voltage Park on-demand | Rent → |
| budget pick | RTX 4090 | 24 GB | $0.69 | RunPod secure cloud | Rent → |
L40S value pick
48GB clears the memory wall that stops 24GB cards on multi-frame diffusion, at a rate below the 80GB datacenter cards. A strong default for producing short clips at usable resolution.
A100 scale pick
The 80GB A100 holds longer sequences and higher resolutions without aggressive offloading, and its bandwidth keeps the many-frame passes moving. The reliable choice once 48GB gets tight.
H100 performance pick
More bandwidth and FP8 shorten each generation, which matters when a single clip takes minutes. Pick it when throughput per dollar beats the lower A100 rate for your workload.
RTX 4090 budget pick
24GB is enough for short, low-resolution clips and for prototyping a pipeline cheaply. Expect frequent out-of-memory limits as soon as you raise frame count or resolution.
Worth knowing
- Video diffusion generates a batch of frames together, so memory scales with clip length as well as resolution. 48GB is a practical floor; 80GB is comfortable.
- Prototype on a cheaper card at low resolution, then move to a larger card only for final high-resolution renders.
- Watch the KV or temporal attention cache on long clips; it can push a job past 48GB even when the model weights are small.
- These runs are slow per clip, so a faster card can be cheaper overall despite a higher hourly rate.
FAQ
Plan for 48GB as a floor and 80GB for comfort. Video models generate many frames in one pass, so memory scales with both clip length and resolution, and 24GB cards run out quickly beyond short, low-resolution clips.
For short, low-resolution clips and prototyping, yes. Its 24GB fills up fast once you increase frame count or resolution, so most production video work moves to a 48GB or 80GB card.
Prices render from today's verified snapshot, not from when this guide was written. Full table on the homepage; break-even math in the calculator.