RTX 4080 16 GB for local AI
Which image and video models run on the RTX 4080 16 GB, which file to download for each, and how much VRAM they need.
VRAM16 GB
MemoryGDDR6X
Bus256-bit
Bandwidth716.8 GB/s
ArchitectureAda Lovelace
Launched2022-11
Launch price$1,199
Runs well25 of 49
Specs: www.nvidia.com · launch: en.wikipedia.org
01What runs on it
| Model | Verdict | Best file | Size | Needed |
|---|---|---|---|---|
| image models | ||||
| FLUX.1 [dev] | Runs well | FP8 | 11.9 GB | 14.2 GB |
| FLUX.1 [schnell] | Runs well | FP8 | 11.9 GB | 14.2 GB |
| FLUX.1 Kontext [dev] | Runs well | FP8 | 11.9 GB | 14.5 GB |
| FLUX.1 Krea [dev] | Runs well | FP8 | 11.9 GB | 14.2 GB |
| FLUX.1 Fill [dev] | Runs well | Q8_0 | 12.7 GB | 15.3 GB |
| FLUX.2 [dev] | Offload only | Q2_K | 12.9 GB | 16.2 GB |
| FLUX.2 [klein] 9B | Runs well | FP8 | 9.4 GB | 11.7 GB |
| FLUX.2 [klein] 4B | Runs well | 16-bit | 7.8 GB | 9.6 GB |
| Krea 2 (Turbo) | Runs well | FP8 | 13.1 GB | 15.7 GB |
| Qwen-Image | Runs | Q4_K_M | 13.1 GB | 15.9 GB |
| Qwen-Image-Edit (2511) | Tight | Q3_K_M | 9.9 GB | 12.9 GB |
| Qwen-Image 2.1 | Runs well | Q8_0 | 7.6 GB | 9.9 GB |
| Z-Image Turbo | Runs well | 16-bit | 12.3 GB | 14.3 GB |
| Z-Image (base) | Runs well | 16-bit | 12.3 GB | 14.3 GB |
| Ideogram 4 | Runs | Q4_1 | 6.2 GB | 14.7 GB |
| Boogu-Image (Turbo) | Runs well | FP8 | 10.3 GB | 12.9 GB |
| ERNIE-Image (Turbo) | Runs well | Q8_0 | 8.7 GB | 11.0 GB |
| HiDream-O1-Image | Runs well | FP8 | 8.1 GB | 10.9 GB |
| Mage-Flow (Microsoft) | Runs well | 16-bit | 8.2 GB | 10.0 GB |
| Lumina Image 2.0 | Runs well | 16-bit | 5.2 GB | 7.0 GB |
| HiDream-I1 (Full) | Runs | Q5_K_M | 13.0 GB | 15.8 GB |
| HiDream-I1 (Dev) | Runs | Q5_K_M | 13.0 GB | 15.8 GB |
| Stable Diffusion 3.5 Large | Runs well | Q8_0 | 8.8 GB | 11.1 GB |
| Stable Diffusion 3.5 Medium | Runs well | 16-bit | 5.1 GB | 6.9 GB |
| Chroma1-HD | Runs well | FP8 | 9.2 GB | 11.5 GB |
| SDXL 1.0 | Runs well | 16-bit | 6.9 GB | 7.1 GB |
| Illustrious XL / Pony (SDXL anime) | Runs well | 16-bit | 6.9 GB | 7.1 GB |
| Stable Diffusion 1.5 | Runs well | 16-bit | 2.1 GB | 3.3 GB |
| HunyuanImage 2.1 | Runs | Q4_K_M | 11.3 GB | 14.6 GB |
| video models | ||||
| Wan 2.1 T2V 14B | Runs | Q5_K_M | 11.3 GB | 15.6 GB |
| Wan 2.1 T2V 1.3B | Runs well | 16-bit | 2.8 GB | 5.6 GB |
| Wan 2.1 I2V 14B 480P | Runs | Q4_K_M | 11.3 GB | 15.6 GB |
| Wan 2.1 I2V 14B 720P | Tight | Q3_K_M | 8.6 GB | 15.4 GB |
| Wan 2.1 VACE 14B | Tight | Q3_K_S | 7.8 GB | 12.6 GB |
| Wan 2.2 T2V A14B | Runs | Q5_K_M | 10.8 GB | 15.1 GB |
| Wan 2.2 I2V A14B | Runs | Q5_K_M | 10.8 GB | 15.1 GB |
| Wan 2.2 TI2V 5B | Runs well | 16-bit | 10.0 GB | 13.8 GB |
| Wan 2.2 Animate 14B | Tight | Q3_K_M | 8.6 GB | 13.9 GB |
| Wan Animate 2 (14B) | Tight | Q3_K_M | 8.6 GB | 13.9 GB |
| Wan 2.2 S2V 14B | Tight | Q2_K | 9.5 GB | 14.3 GB |
| SCAIL-2 (character animation) | Tight | Q3_K_M | 9.1 GB | 14.4 GB |
| HunyuanVideo (13B, original) | Runs | Q6_K | 11.0 GB | 15.3 GB |
| LTX-Video 13B (0.9.8) | Runs | Q6_K | 10.9 GB | 15.2 GB |
| HunyuanVideo 1.5 | Runs well | FP8 | 8.3 GB | 12.6 GB |
| LTX-2 (19B) | Tight | Q3_K_M | 10.1 GB | 14.9 GB |
| LTX-2.3 (22B) | Tight | Q3_K_M | 10.8 GB | 15.6 GB |
| LTX-2.5 (22B) | Tight | Q2_K | 8.8 GB | 13.6 GB |
| MiniMax H3 (33B) | Offload only | Q4_K_M | 19.9 GB | 25.7 GB |
| MiniMax H3 Pruned | Tight | Q3_K_M | 8.9 GB | 14.7 GB |
Calculated from real file sizes plus working memory. How the numbers work.
02Good to know
The RTX 4080 16 GB is an Ada Lovelace GPU with hardware FP8, so ComfyUI can compute Comfy-Org's FP8 files natively: small and fast. (Plain FP8 files use FP8 maths with the --fast fp8_matrix_mult option.)
03Measured and reported results
| Label | Model | Setup | Result | Peak VRAM | Date | Source |
|---|---|---|---|---|---|---|
| reported | FLUX.1 dev | fp8_e4m3fn weight_dtype · 1024x1024 · 20 steps “weight_dtype (fp8_e4m3fn) with --fast (13sec)” ComfyUI 'RTX 4090 benchmarks - FLUX model' thread; OP settings 1024x1024, 20 steps; Aug 2024 ComfyUI/PyTorch 2.5 dev; with --fast flag (same poster: 19sec without --fast, 28sec def | 13 s / image | — | 2024-08-23 | github.com → |
Reported results are other people's numbers, copied as published, with a link. Settings, drivers and ComfyUI versions differ, so compare them with care. Send yours.