Can Flux.2 Klein 9B run on Mac Studio M3 Ultra 256GB?
YES — Runs Great
S90Excellent
Flux.2 Klein 9B needs ~29.0 GB VRAM. Mac Studio M3 Ultra 256GB has 184.3 GB.
| Precision | VRAM Needed | Status | Grade |
|---|---|---|---|
| FP16Best | 29.0 GB | Runs natively | S |
| FP8 | 14.0 GB | Runs natively | S |
29.0 GB required184.3 GB available
16% VRAM used
Parameters
9B
Precision
FP16
Max Resolution
1024×1024
VRAM
29.0 GB / 184.3 GB
Gen Time
~18.3s
Performance by workload
| Workload | Grade | Fit | VRAM | Gen Time |
|---|---|---|---|---|
| Quick | S | Runs natively | 28.5 GB | ~18.3s |
| Standard | S | Runs natively | 29.0 GB | ~18.3s |
| High Quality | S | Runs natively | 29.0 GB | ~18.3s |
Resolution compatibility
How Flux.2 Klein 9B (9B 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 | 28.5 GB | S● |
| 768×768 | 28.7 GB | S● |
| 1024×1024 | 29.0 GB | S● |
Memory breakdown
Required: 29.0 GBAvailable: 184.3 GB
Weights18.0 GB
VAE0.2 GB
Text Encoder9.6 GB
Activations0.6 GB
Overhead0.5 GB
Frequently asked questions
Can Mac Studio M3 Ultra 256GB run Flux.2 Klein 9B?
Yes, Mac Studio M3 Ultra 256GB can run Flux.2 Klein 9B for image generation. Runs natively.
How much VRAM does Flux.2 Klein 9B need?
Flux.2 Klein 9B (9B parameters) requires approximately 29.0 GB at FP16. Mac Studio M3 Ultra 256GB provides 184.3 GB.
What resolution can Flux.2 Klein 9B produce on Mac Studio M3 Ultra 256GB?
On Mac Studio M3 Ultra 256GB, Flux.2 Klein 9B can generate images at up to 1024x1024. Generation time is approximately 18.3 seconds per image.
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