Can Wan Video 2.1 14B run on H100 NVL 188GB?
YES — Runs Great
S90Excellent
Wan Video 2.1 14B needs ~56.2 GB VRAM. H100 NVL 188GB has 188.0 GB.
56.2 GB required188.0 GB available
30% VRAM used
Parameters
14B
Precision
FP16
Max Resolution
720×1280
VRAM
56.2 GB / 188.0 GB
Gen Time
300ms/frame
Performance by workload
| Workload | Grade | Fit | VRAM | Per Frame |
|---|---|---|---|---|
| Short Clip | S | Runs natively | 56.2 GB | 300ms |
| Long Video | S | Runs natively | 79.4 GB | 400ms |
Video scenario compatibility
How Wan Video 2.1 14B (14B params) performs at each scenario on H100 NVL 188GB (188.0 GB usable).
FP16 (full precision)
| Scenario | VRAM | H100 NVL 188GB |
|---|---|---|
| 512×512 · 25 frames | 54.1 GB | S |
| 768×512 · 25 frames | 56.2 GB | S |
| 768×512 · 100 frames | 62.5 GB | S |
| 1280×720 · 25 frames | 64.6 GB | S |
FP8 (quantized — ~40% less VRAM)
| Scenario | VRAM | H100 NVL 188GB |
|---|---|---|
| 512×512 · 25 frames | 29.5 GB | S |
| 768×512 · 25 frames | 31.6 GB | S |
| 768×512 · 100 frames | 37.9 GB | S |
| 1280×720 · 25 frames | 40.1 GB | S |
Memory breakdown
Required: 56.2 GBAvailable: 188.0 GB
Weights28.0 GB
VAE0.2 GB
Text Encoder18.8 GB
Activations6.0 GB
Overhead0.5 GB
Frequently asked questions
Can H100 NVL 188GB run Wan Video 2.1 14B?
Yes, H100 NVL 188GB can run Wan Video 2.1 14B for video generation. Runs natively.
How much VRAM does Wan Video 2.1 14B need?
Wan Video 2.1 14B (14B parameters) requires approximately 56.2 GB at FP16. H100 NVL 188GB provides 188.0 GB.
What resolution and duration can Wan Video 2.1 14B produce on H100 NVL 188GB?
On H100 NVL 188GB, Wan Video 2.1 14B can generate video at up to 720x1280. Generation time is approximately 0.3 seconds per frame.
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