§01·compatibility · /check
Flux.1 Dev on RTX 4090
Yes — Flux.1 Dev runs on the RTX 4090 (24 GB). Fastest community-measured result: 1.85 it/s.
✓ runsimageactive40 series24GB VRAM
step-by-step recipe for this pair
Flux.1 Dev on RTX 4090: ComfyUI Image Generation Guide
imagebeginner24GB+
§02·benchmarks
| Task | Quant | Speed | VRAM | Works | Confidence | Source | Verified |
|---|---|---|---|---|---|---|---|
| t2i | fp8 | 1.85it/s | ✓ | github.com· github | 2026-05-15 |
§03·how it was measured
- t2ifp81.85 it/s
Total VRAM 24564 MB
recorded from github.com ↗ · verified 2026-05-15
§04·more Flux.1 Dev recipes
§05·common questions
Can you run Flux.1 Dev on RTX 4090?
Yes — Flux.1 Dev runs on the RTX 4090 (24 GB). Fastest community-measured result: 1.85 it/s.
Which quantizations have been tested for Flux.1 Dev on RTX 4090?
fp8 — measured in community benchmarks.
How fast is Flux.1 Dev on RTX 4090?
Up to 1.85 it/s (t2i), the fastest community-measured result.
Are there step-by-step instructions for Flux.1 Dev on RTX 4090?
Yes — a step-by-step recipe documents Flux.1 Dev on the RTX 4090, linked at the top of this page.