Can Flux.2 Dev run on Mac Studio M3 Ultra 256GB?
YES — Runs Great
S90Excellent
Flux.2 Dev needs ~64.0 GB VRAM. Mac Studio M3 Ultra 256GB has 184.3 GB.
| Precision | VRAM Needed | Status | Grade |
|---|---|---|---|
| FP16Best | 64.0 GB | Runs natively | S |
| FP8 | 20.0 GB | Runs natively | S |
64.0 GB required184.3 GB available
35% VRAM used
Parameters
32B
Precision
FP16
Max Resolution
1024×1024
VRAM
64.0 GB / 184.3 GB
Gen Time
~28m 54s
Performance by workload
| Workload | Grade | Fit | VRAM | Gen Time |
|---|---|---|---|---|
| Quick | S | Runs natively | 63.5 GB | ~28m 54s |
| Standard | S | Runs natively | 64.0 GB | ~28m 54s |
| High Quality | S | Runs natively | 64.0 GB | ~28m 54s |
Resolution compatibility
How Flux.2 Dev (32B params) performs at each resolution on Mac Studio M3 Ultra 256GB (184.3 GB usable).
| Resolution | VRAM Required | Mac Studio M3 Ultra 256GB |
|---|---|---|
| 512×512 | 63.5 GB | S● |
| 768×768 | 63.7 GB | S● |
| 1024×1024 | 64.0 GB | S● |
Memory breakdown
Required: 64.0 GBAvailable: 184.3 GB
Weights64.0 GB
VAE0.2 GB
Text Encoder9.6 GB
Activations0.8 GB
Overhead0.5 GB
Frequently asked questions
Can Mac Studio M3 Ultra 256GB run Flux.2 Dev?
Yes, Mac Studio M3 Ultra 256GB can run Flux.2 Dev for image generation. Runs natively.
How much VRAM does Flux.2 Dev need?
Flux.2 Dev (32B parameters) requires approximately 64.0 GB at FP16. Mac Studio M3 Ultra 256GB provides 184.3 GB.
What resolution can Flux.2 Dev produce on Mac Studio M3 Ultra 256GB?
On Mac Studio M3 Ultra 256GB, Flux.2 Dev can generate images at up to 1024x1024. Generation time is approximately 1734.4 seconds per image.
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