Can You Run Gemma 4 on a Mac Mini (48GB)?
Yes — best fit is Gemma 4 31B at SFP8 (8-bit) (~30.4GB) ✅ Comfortable, using 43GB of usable memory on a 48GB Mac Mini.
Every Gemma 4 model on this configuration
| Model | Best quant | Size | Status |
|---|---|---|---|
| Gemma 4 E2B | BF16 (16-bit) | ~8 GB | ✅ Comfortable |
| Gemma 4 E4B | BF16 (16-bit) | ~15 GB | ✅ Comfortable |
| Gemma 4 12B | BF16 (16-bit) | ~26.7 GB | ✅ Comfortable |
| Gemma 4 26B A4B | SFP8 (8-bit) | ~25 GB | ✅ Comfortable |
| Gemma 4 31B | SFP8 (8-bit) | ~30.4 GB | ✅ Comfortable |
How we got this verdict
48 - 5 = 43GB usable (macOS and background processes reserve roughly 5 GB of unified memory).
Because Mac Mini has enough unified memory to spare, 31B fits at SFP8 (8-bit)— a higher-precision quant than most setups get. You don't need the 4-bit QAT build here, though it's still a safe download if you want a smaller file for a second model running alongside it.
Going up to 64GB (64GB) doesn't change the top recommendation — 31B is still the best fit, just with more headroom.
Real-world notes for this configuration
48GB is a Pro-chip configuration on the Mac Mini — well above the base chip's ceiling. At this tier, the 31B flagship model's official QAT checkpoint (around 18GB) fits with genuine headroom, making a 48GB Mini a compact, quiet, always-on option for the largest current Gemma 4 model.
- ⚠Even at the Pro-chip tier, the Mini's compact chassis has less thermal mass than a Mac Studio — for genuinely continuous, heavy workloads the Studio is the more headroom-rich desktop option.
Try a different configuration
Best fit: Gemma 4 31B · SFP8 (8-bit) · ~30.4 GB ✅ Comfortable
FAQ
Can a Mac Mini (48GB) run the 31B flagship model?
Yes, comfortably — Gemma 4 31B fits at SFP8 (8-bit) (~30.4GB), using 43GB of usable memory on this configuration.
What's the best Gemma 4 model for a Mac Mini (48GB)?
Gemma 4 31B at SFP8 (8-bit) (~30.4GB) is the best fit — it's the largest model that runs comfortably within the 43GB of usable memory here.
What if I have more or less memory than 48GB?
With more (e.g. 64GB), you can run larger models or the same model more comfortably — see the Mac Mini page. With less (e.g. 32GB), the best-fitting model gets smaller or tighter — see the Mac Mini page.
Is a 48GB Mac Mini enough to skip a Mac Studio for local AI?
For the current Gemma 4 lineup, 48GB comfortably covers everything up to and including the 31B flagship's QAT build, at a lower price and smaller footprint than a Mac Studio — the Studio's advantage is a higher memory ceiling (up to 192GB) and more sustained cooling headroom, not necessarily better fit at this specific tier.
Is 48GB only available with the Pro chip on the Mini?
In the current lineup, yes — the base chip's configurator tops out at 24GB, so 48GB means the Pro-chip variant.
Related
Gemma 4 on Mac Mini
The full setup guide for this device family.
Can You Run Gemma 4 on a Mac Mini (32GB)?
Mac Mini — 32GB
Can You Run Gemma 4 on a Mac Mini (64GB)?
Mac Mini — 64GB
Gemma 4 Hardware Requirements
The full memory table this checker is built on.
Full Hardware Checker
Every device type, every model, one tool.