New: the Video Studio is here, for whole AI films.Get it now →

GPU check

The fastest GPUs for local AI video

16 NVIDIA cards ranked by how long a video clip actually takes on them, grouped by how much memory they carry. Real generations from owners' own machines over the last 180 days, not spec sheets.

8 GB of VRAM

Ranked on LTX 2.5 Image-to-Video at 5 seconds, the workload these 3 cards have in common.

Every card here was measured at 1280x704 and 8 steps, with VRAM reclaim enabled, so the comparison holds the work fixed.

  1. 1RTX 4070 Laptop GPU8 GB1 min 58 s12 runs on 3 machines
  2. 2RTX 40608 GB2 min 31 s49 runs on 5 machines
  3. 3RTX 3060 Ti8 GB26 min11 runs on 3 machines

12 GB of VRAM

Ranked on MiniMax H3 Image to Video at 5 seconds, the workload these 3 cards have in common.

Every card here was measured at 768x1344 and 20 steps, with Spectrum and VRAM reclaim enabled, so the comparison holds the work fixed.

  1. 1RTX 4070 Ti12 GB6 min 30 s34 runs on 4 machines
  2. 2RTX 507012 GB10 min106 runs on 3 machines
  3. 3RTX 306012 GB28 min16 runs on 5 machines

16 to 32 GB of VRAM

Ranked on MiniMax H3 Image to Video at 5 seconds, the workload these 10 cards have in common.

Every card here was measured at 1344x768 and 20 steps, with Spectrum and VRAM reclaim enabled, so the comparison holds the work fixed.

  1. 1RTX 509032 GB4 min 15 s105 runs on 6 machines
  2. 2RTX 409024 GB5 min 3 s136 runs on 14 machines
  3. 3RTX 508016 GB6 min 17 s108 runs on 5 machines
  4. 4RTX 408016 GB6 min 50 s71 runs on 4 machines
  5. 5RTX 4070 Ti SUPER16 GB8 min 22 s30 runs on 4 machines
  6. 6RTX 5080 Laptop GPU16 GB9 min 44 s26 runs on 3 machines
  7. 7RTX 5070 Ti16 GB9 min 51 s24 runs on 3 machines
  8. 8RTX 309024 GB12 min118 runs on 6 machines
  9. 9RTX 4060 Ti16 GB16 min13 runs on 3 machines
  10. 10RTX 5060 Ti16 GB17 min1,124 runs on 4 machines

Common questions

What is the fastest GPU with 8 GB of VRAM for local AI video?
The RTX 4070 Laptop GPU, at 1 min 58 s on LTX 2.5 Image-to-Video, measured across 3 machines. It is the quickest of the 3 cards in that memory band.
What is the fastest GPU with 12 GB of VRAM for local AI video?
The RTX 4070 Ti, at 6 min 30 s on MiniMax H3 Image to Video, measured across 4 machines. It is the quickest of the 3 cards in that memory band.
What is the fastest GPU with 16 to 32 GB of VRAM for local AI video?
The RTX 5090, at 4 min 15 s on MiniMax H3 Image to Video, measured across 6 machines. It is the quickest of the 10 cards in that memory band.
Does more VRAM make local AI video faster?
More memory buys two things: speed, and presets that will not run at all without it. The quickest card at 8 GB of VRAM is the RTX 4070 Laptop GPU, at 1 min 58 s on LTX 2.5 Image-to-Video. The quickest at 16 to 32 GB of VRAM is the RTX 5090, at 4 min 15 s on MiniMax H3 Image to Video. Those are two different presets, because the heavier models do not fit in the smaller band, so read them as two measurements rather than one ratio.

Times are medians over real generations reported by the App in the last 180 days. A card only appears in a band on a workload it shares with the others: the same preset, the same clip length, the same output resolution, the same step count and the same accelerator settings, with at least ten runs across three machines behind every number. That is stricter than it sounds and it is the point: owners of bigger cards run bigger settings, so ranking on the preset name alone measures what people choose rather than what the card does. Prices are deliberately absent: they move, and these timings do not. Adult packs and retired presets are left out. Check your own machine The full list of what runs and what does not is in System requirements