Can the Apple M4 Pro (48GB) run Gemma 3 4B?

Apple M4 Pro (48GB) × Gemma 3 4B8K context
YesRuns fully on the GPU
Memory at FP1610.3 GB of 36 GB
Weights 8.6 GBKV cache 1.1 GBRuntime 0.6 GB
QuantFP16Full quality
Memory10.3 GBof 36 GB usable
Speed~19tokens per second
  1. FP16
  2. Q8_0
  3. Q6_K
  4. Q5_K_M
  5. Q4_K_M
  6. Q3_K_M
  7. Q2_K

Yes. The Apple M4 Pro (48GB) can run Gemma 3 4B fully in unified memory at FP16 (full quality), using about 10.3 GB of the 36 GB available, at roughly 19 tokens/second.

Run it with Ollama

With Ollama installed, one command downloads and starts Gemma 3 4B:

ollama run gemma3:4b

Ollama's default download is Q4_K_M (about 4.3 GB here). You have room for FP16, which is full quality: pick that GGUF in LM Studio or from Hugging Face.

New to this? Step-by-step setup for the Apple M4 Pro (48GB)

Run it in the cloud

No Apple M4 Pro (48GB)? Run Gemma 3 4B in the cloud.

Rent a cloud GPU by the hour. No upfront cost, stop any time.

Memory needed by quantization

At 8,192 tokens of context. The black line marks the 36 GB the Apple M4 Pro (48GB) can use. macOS lets the GPU use about 36 GB of the 48 GB unified memory by default.

QuantQualityMemoryFits?Speed
FP16Full quality10.3 GBFits~19 tok/s
Q8_0Near-lossless6.3 GBFits~36 tok/s
Q6_KExcellent5.3 GBFits~46 tok/s
Q5_K_MVery good4.8 GBFits~54 tok/s
Q4_K_MGood, most popular4.3 GBFits~63 tok/s
Q3_K_MNoticeably degraded3.8 GBFits~78 tok/s
Q2_KHeavily degraded3.4 GBFits~102 tok/s

Frequently asked questions

Can Apple M4 Pro (48GB) run Gemma 3 4B?

Yes. The Apple M4 Pro (48GB) can run Gemma 3 4B fully in unified memory at FP16 (full quality), using about 10.3 GB of the 36 GB available, at roughly 19 tokens/second.

How much VRAM does Gemma 3 4B need?

About 4.3 GB at Q4_K_M with 8,192 tokens of context, and about 10.3 GB at full FP16 precision.

How fast is Gemma 3 4B on the Apple M4 Pro (48GB)?

Roughly 19 tokens per second at FP16, estimated from the Apple M4 Pro (48GB)'s 273 GB/s memory bandwidth.