RTX 4090 Laptop 16 GB for local AI
Which image and video models run on the RTX 4090 Laptop 16 GB, which file to download for each, and how much VRAM they need.
VRAM16 GB
MemoryGDDR6
Bus256-bit
Bandwidth—
ArchitectureAda Lovelace
Launched2023-02
Power80–150 W
Runs well25 of 49
Specs: www.nvidia.com · launch: www.nvidia.com
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 4090 Laptop 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.) As a laptop GPU it runs at a lower power limit than desktop cards (80–150 W depending on the laptop). The memory verdicts are the same; speed depends heavily on how much power the laptop maker allows.
03Measured and reported results
No measured results yet. Send yours.