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Apple M3 Pro (18GB)

The Apple M3 Pro (18GB) has 18 GB VRAM and 150 GB/s memory bandwidth. It can run 35 of our 70 tracked models natively in VRAM at 8k context.

With 18 GB LPDDR5, the Apple M3 Pro (18GB) is a laptop-tier GPU that can run 35 models natively. It handles 30B-class models at Q4 quantization.

Apple M3 Pro (18GB): 18GB at 150 GB/s — base M3 Pro.

7B at Q4 native. 14B tight. ~6-10 t/s for 7B.

Same as 36GB.

VendorApple
ArchitectureApple M3 Pro
CPU cores12 (6P + 6E)
VRAM18 GB (unified)
Memory typeLPDDR5
Memory bandwidth150 GB/s
Compute backendMETAL
TierLaptop
Released2023
Models (native)35 / 70
Models (offload)0 / 70
Software: MLX gives the best performance on Apple Silicon; llama.cpp Metal backend is a solid alternative. Both are well-supported by Ollama.

Popular models for this GPU

Models this GPU runs natively in VRAM (35)

Too large for this GPU (35)

Compare Apple M3 Pro (18GB) with other GPUs

Frequently asked questions

How much VRAM does the Apple M3 Pro (18GB) have?
The Apple M3 Pro (18GB) has 18 GB of LPDDR5 with 150 GB/s memory bandwidth (unified system memory, shared between CPU and GPU).
What is the Apple M3 Pro (18GB) best for?
With 18 GB of VRAM, the Apple M3 Pro (18GB) handles smaller models (7B–14B) at Q4–Q5 quantization — ideal for entry-level local LLM experimentation and lightweight inference.
What LLMs can the Apple M3 Pro (18GB) run locally?
The Apple M3 Pro (18GB) can run 35 of the 70 open-weight models tracked by CanItRun natively in VRAM at 8k context. Top options include: Llama 3.1 8B Instruct at Q8_0, Llama 3.2 3B Instruct at BF16, Llama 3.2 1B Instruct at FP32.
Can the Apple M3 Pro (18GB) run Llama 3.3 70B Instruct?
The Apple M3 Pro (18GB) does not have enough VRAM to run Llama 3.3 70B Instruct. You would need more VRAM or a lower quantization level.
Can the Apple M3 Pro (18GB) run Qwen 3.6 27B?
Yes. The Apple M3 Pro (18GB) runs Qwen 3.6 27B natively in VRAM at Q2_K quantization, achieving approximately 16.9 tokens per second.
Can the Apple M3 Pro (18GB) run Llama 3.1 8B Instruct?
Yes. The Apple M3 Pro (18GB) runs Llama 3.1 8B Instruct natively in VRAM at Q8_0 quantization, achieving approximately 18.8 tokens per second.