Device: Apple M4 Max (64GB)
Category: mac
Memory: 64 GB (unified), usable for models: 48 GB
Memory bandwidth: 546 GB/s
MSRP (USD): 3499
TDP: 145 W
Best runtime: MLX direct / Ollama (MLX backend)
Notes: Base M4 Max config. At 64GB, rule shifts to ~75% (per Apple Metal docs) = ~48GB usable. 546GB/s memory bandwidth. Comfortably fits 34B models; 70B at lower quant.