§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, with 24.564 GB peak VRAM.
✓ runsimageactive40 series24GB VRAM
§02·benchmarks
| Task | Quant | Speed | VRAM | Works | Confidence | Source | Verified |
|---|---|---|---|---|---|---|---|
| t2i | fp8 | 1.85it/s | 24.564GB | ✓ | github.com· github | 2026-05-15 |
§03·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, with 24.564 GB peak VRAM.
How much VRAM does Flux.1 Dev need on RTX 4090?
Measured peak VRAM is 24.564 GB.
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; see the recipes listed below.
§04·related recipes