Wan 2.1 VACE 14B on 24 GB of VRAM
Yes, but only just: Q8_0 leaves 0.5 GB free on 24 GB. The all-in-one Wan for control and editing: reference-to-video, pose and depth control, inpainting and extending clips.
Runs well
Yes, just.
Q8_0 (18.7 GB) fits with only 0.5 GB to spare (about 23.5 GB of 24 GB).
Best fileQ8_0
File size18.7 GB
VRAM needed~23.5 GB
System RAM32 GB+
Memory map · 24 GB GPU23.5 GB / 24 GB
012 GB24 GB
Weights Q8_0 · 18.7 GBWorking memory · 4.0 GBReserve · 0.8 GBFree · 0.5 GB
calculated How this is counted.
01What to download
| Part | File | Folder | Size | |
|---|---|---|---|---|
| Model | Wan2.1_14B_VACE-Q8_0.gguf Q8_0 · QuantStack/Wan2.1_14B_VACE-GGUF | models/unet | 18.7 GB | Download → |
| Text encoder | umt5_xxl_fp8_e4m3fn_scaled.safetensors UMT5-XXL FP8 (scaled) · Comfy-Org/Wan_2.1_ComfyUI_repackaged | models/text_encoders | 6.7 GB | Download → |
| VAE | wan_2.1_vae.safetensors Wan 2.1 VAE · Comfy-Org/Wan_2.1_ComfyUI_repackaged | models/vae | 0.3 GB | Download → |
| Total download · keep about the same free on disk | 25.7 GB | |||
Alternatives: UMT5-XXL FP16 (11.4 GB). Sizes from Hugging Face, 2026-10-01.
02Every file, on 24 GB
| File | Size | Needed | On this card | Quality | Download |
|---|---|---|---|---|---|
| 16-bit SAFETENSORS · Comfy-Org | 34.7 GB | 39.5 GB | 15.5 GB too big | the original weights | Hugging Face → |
| Q8_0 ← GGUF · QuantStack | 18.7 GB | 23.5 GB | fits · 0.5 GB spare | practically identical to the original | Hugging Face → |
| Q6_K GGUF · QuantStack | 14.5 GB | 19.3 GB | fits · 4.7 GB spare | very close to the original | Hugging Face → |
| Q5_K_M GGUF · QuantStack | 13.0 GB | 17.8 GB | fits · 6.2 GB spare | close; small differences in fine detail | Hugging Face → |
| Q4_K_M GGUF · QuantStack | 11.6 GB | 16.4 GB | fits · 7.6 GB spare | good; some loss in fine detail and text | Hugging Face → |
| Q3_K_S GGUF · QuantStack | 7.8 GB | 12.6 GB | fits · 11.4 GB spare | noticeable loss of detail | Hugging Face → |
“Needed” adds 4 GB of working memory for Wan VACE 14B and a 0.8 GB reserve. Sizes 2026-10-01.