Wan 2.2 S2V 14B on 24 GB of VRAM
Yes, but only just: FP8 leaves 2.8 GB free on 24 GB. Sound-to-video: a talking or singing person from one image plus an audio track.
Runs well
Yes.
Take FP8 (16.4 GB). In use it comes to about 21.2 GB, with 2.8 GB left over on 24 GB.
Best fileFP8
File size16.4 GB
VRAM needed~21.2 GB
System RAM32 GB+
Memory map · 24 GB GPU21.2 GB / 24 GB
012 GB24 GB
Weights FP8 · 16.4 GBWorking memory · 4.0 GBReserve · 0.8 GBFree · 2.8 GB
calculated How this is counted.
Got an RTX 40 or 50? Swap Q8_0 for FP8 (16.4 GB): same quality class, computed natively there.
01What to download
| Part | File | Folder | Size | |
|---|---|---|---|---|
| Model | wan2.2_s2v_14B_fp8_scaled.safetensors FP8 · Comfy-Org/Wan_2.2_ComfyUI_Repackaged | models/diffusion_models | 16.4 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_2.2_ComfyUI_Repackaged | models/vae | 0.3 GB | Download → |
| Also needed | wav2vec2_large_english_fp16.safetensors wav2vec2 large English FP16 (audio encoder) · Comfy-Org/Wan_2.2_ComfyUI_Repackaged | models/audio_encoders | 0.6 GB | Download → |
| Total download · keep about the same free on disk | 24.0 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 | 32.6 GB | 37.4 GB | 13.4 GB too big | the original weights | Hugging Face → |
| Q8_0 GGUF · QuantStack | 19.6 GB | 24.4 GB | spills 0.4 GB | practically identical to the original | Hugging Face → |
| FP8 ← SAFETENSORS · Comfy-Org | 16.4 GB | 21.2 GB | fits · 2.8 GB spare | practically identical to the original | Hugging Face → |
| Q6_K GGUF · QuantStack | 16.2 GB | 21.0 GB | fits · 3.0 GB spare | very close to the original | Hugging Face → |
| Q5_K_M GGUF · QuantStack | 15.0 GB | 19.8 GB | fits · 4.2 GB spare | close; small differences in fine detail | Hugging Face → |
| Q4_K_M GGUF · QuantStack | 13.9 GB | 18.7 GB | fits · 5.3 GB spare | good; some loss in fine detail and text | Hugging Face → |
| Q3_K_M GGUF · QuantStack | 11.4 GB | 16.2 GB | fits · 7.8 GB spare | noticeable loss of detail | Hugging Face → |
| Q2_K GGUF · QuantStack | 9.5 GB | 14.3 GB | fits · 9.7 GB spare | heavy loss; a last resort | Hugging Face → |
“Needed” adds 4 GB of working memory for Wan 2.2 S2V and a 0.8 GB reserve. Sizes 2026-10-01.