Mac Studio M2 Ultra (64GB)

Apple · High-end

An Apple Silicon desktop whose unified memory is shared between CPU and GPU, so most of the 64GB is available to models. That makes it capable of running large models that would otherwise need multiple discrete GPUs, at low power.

Specifications

Unified memory	64GB
Memory bandwidth	800 GB/s
Power draw	295W
Type	complete machine

A complete machine rather than a card, so compare it against a full build rather than a GPU alone. Higher-memory configurations cost considerably more.

Strengths

• + Large unified memory runs models that need far more than a 24GB card
• + Very low power draw for the capability, and near-silent
• + Excellent MLX and llama.cpp Metal support on Apple Silicon

Weaknesses

• − Memory bandwidth trails high-end discrete GPUs, so generation is slower
• − Memory is fixed at purchase, you cannot add more later
• − Prompt processing on long contexts is noticeably slower than on NVIDIA cards

See what models fit in 64GB →

Featured in builds

• Apple Silicon build for large models

Entry last verified 15 January 2026. Specifications and especially prices change; verify before buying.