Hardware
Apple M4 Max (40-core GPU)
Apple M4 Max (40-core GPU) has 48 / 64 / 128 GB Unified and 546 GB/s. See which open models fit, at which quant, and roughly how fast. Figures below use the default memory (48 GB). Updated 2026-10-17.
Memory48 / 64 / 128 GB Unified
Bandwidth546 GB/s
Kindmac
Year2024
Apple: up to 546 GB/s and 128GB for the 40-core GPU M4 Max. Source.
RSS for new models on this device
Models that fit
90 more models in the catalog do not fit this default profile, or ranked below the first 40 that do.
Example: Tight fit fully in unified memory on your Apple M4 Max (40-core GPU) at UD-Q3_K_XL, 8K context, about 43–59 tok/s. Weights 33.8 GB plus 0.75 GB of KV cache — 35.2 GB of 36.0 GB usable. Weights shown in the verdict use GiB (the same 1024³ counting as GPU memory).