Will It Run AI

Can Flux.1 Schnell run on Mac Studio M3 Ultra 256GB?

YES — Runs Great

S90Excellent

Flux.1 Schnell needs ~24.0 GB VRAM. Mac Studio M3 Ultra 256GB has 184.3 GB.

Share:
24.0 GB required184.3 GB available
13% VRAM used

Parameters

12B

Precision

FP16

Max Resolution

1024×1024

VRAM

24.0 GB / 184.3 GB

Gen Time

~32.1s

Performance by workload

WorkloadGradeFitVRAMGen Time
QuickSRuns natively23.6 GB~32.1s
StandardSRuns natively24.0 GB~32.1s
High QualitySRuns natively24.0 GB~32.1s

Resolution compatibility

How Flux.1 Schnell (12B params) performs at each resolution on Mac Studio M3 Ultra 256GB (184.3 GB usable).

ResolutionVRAM RequiredMac Studio M3 Ultra 256GB
512×51223.6 GBS
768×76823.8 GBS
1024×102424.0 GBS

Memory breakdown

Required: 24.0 GBAvailable: 184.3 GB
Weights24.0 GB
VAE0.2 GB
Text Encoder9.6 GB
Activations0.8 GB
Overhead0.5 GB
See all results for Mac Studio M3 Ultra 256GBSee all hardware for Flux.1 Schnell

Frequently asked questions

Can Mac Studio M3 Ultra 256GB run Flux.1 Schnell?

Yes, Mac Studio M3 Ultra 256GB can run Flux.1 Schnell for image generation. Runs natively.

How much VRAM does Flux.1 Schnell need?

Flux.1 Schnell (12B parameters) requires approximately 24.0 GB at FP16. Mac Studio M3 Ultra 256GB provides 184.3 GB.

What resolution can Flux.1 Schnell produce on Mac Studio M3 Ultra 256GB?

On Mac Studio M3 Ultra 256GB, Flux.1 Schnell can generate images at up to 1024x1024. Generation time is approximately 32.1 seconds per image.

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