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Can the Apple M4 Pro (48GB) run Llama 3.1 8B?

Apple M4 Pro (48GB) × Llama 3.1 8B8K context
YesRuns fully on the GPU
Memory at FP1617.7 GB of 36 GB
Weights 16.1 GBKV cache 1.1 GBRuntime 0.6 GB
QuantFP16Full quality
Memory17.7 GBof 36 GB usable
Speed~10tokens 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 Llama 3.1 8B fully in unified memory at FP16 (full quality), using about 17.7 GB of the 36 GB available, at roughly 10 tokens/second.

Try other context lengths

Run it with Ollama

With Ollama installed, one command downloads and starts Llama 3.1 8B:

ollama run llama3.1:8b

Ollama's default download is Q4_K_M (about 6.5 GB here). You have room for FP16, which is full quality: pick that GGUF in LM Studio or from Hugging Face.

Run it in the cloud

No Apple M4 Pro (48GB)? Run Llama 3.1 8B in the cloud.

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

Rent a GPU on RunPodRent a GPU on Vast.ai

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 quality17.7 GBFits~10 tok/s
Q8_0Near-lossless10.2 GBFits~19 tok/s
Q6_KExcellent8.3 GBFits~25 tok/s
Q5_K_MVery good7.4 GBFits~29 tok/s
Q4_K_MGood, most popular6.5 GBFits~34 tok/s
Q3_K_MNoticeably degraded5.6 GBFits~42 tok/s
Q2_KHeavily degraded4.7 GBFits~54 tok/s

GPUs that run Llama 3.1 8B comfortably

Models that run well on the Apple M4 Pro (48GB)

Frequently asked questions

Can Apple M4 Pro (48GB) run Llama 3.1 8B?

Yes. The Apple M4 Pro (48GB) can run Llama 3.1 8B fully in unified memory at FP16 (full quality), using about 17.7 GB of the 36 GB available, at roughly 10 tokens/second.

How much VRAM does Llama 3.1 8B need?

About 6.5 GB at Q4_K_M with 8,192 tokens of context, and about 17.7 GB at full FP16 precision.

How fast is Llama 3.1 8B on the Apple M4 Pro (48GB)?

Roughly 10 tokens per second at FP16, estimated from the Apple M4 Pro (48GB)'s 273 GB/s memory bandwidth.