Can Wan Video 2.1 14B run on MacBook Pro M3 Max 128GB?
YES — Runs Great
S90Excellent
Wan Video 2.1 14B needs ~56.2 GB VRAM. MacBook Pro M3 Max 128GB has 92.2 GB.
56.2 GB required92.2 GB available
61% VRAM used
Parameters
14B
Precision
FP16
Max Resolution
720×1280
VRAM
56.2 GB / 92.2 GB
Gen Time
~1m 19s/frame
Performance by workload
| Workload | Grade | Fit | VRAM | Per Frame |
|---|---|---|---|---|
| Short Clip | S | Runs natively | 56.2 GB | ~1m 19s |
| Long Video | A | Tight fit | 79.4 GB | ~1m 46s |
Video scenario compatibility
How Wan Video 2.1 14B (14B params) performs at each scenario on MacBook Pro M3 Max 128GB (92.2 GB usable).
FP16 (full precision)
| Scenario | VRAM | MacBook Pro M3 Max 128GB |
|---|---|---|
| 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 | MacBook Pro M3 Max 128GB |
|---|---|---|
| 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: 92.2 GB
Weights28.0 GB
VAE0.2 GB
Text Encoder18.8 GB
Activations6.0 GB
Overhead0.5 GB
Frequently asked questions
Can MacBook Pro M3 Max 128GB run Wan Video 2.1 14B?
Yes, MacBook Pro M3 Max 128GB 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. MacBook Pro M3 Max 128GB provides 92.2 GB.
What resolution and duration can Wan Video 2.1 14B produce on MacBook Pro M3 Max 128GB?
On MacBook Pro M3 Max 128GB, Wan Video 2.1 14B can generate video at up to 720x1280. Generation time is approximately 78.6 seconds per frame.
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<iframe src="https://willitrunai.com/embed/wan-video-2-1-14b-on-m3-max-128gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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