llamaperf

M4 32GB vs M4 Max 36GB for local LLMs

14 reports on the M4 32GB and 2 on the M4 Max 36GB

Which is faster for local LLMs?

Nobody has reported the same model at the same quant on both cards yet, so there's no measured head-to-head. Memory bandwidth, which caps how fast a card can write, is 3.4x higher on the M4 Max 36GB (120 GB/s on the M4 32GB, 410 on the M4 Max 36GB). The estimates below compare them on the models people run most.

M4 32GB
Memory
32GB unified
Memory bandwidth
120 GB/s
FP16 compute
4.3 TFLOPS
Reports
14
M4 Max 36GB
Memory
36GB unified
Memory bandwidth
410 GB/s
FP16 compute
14.7 TFLOPS
Reports
2

Estimated by the calculator

The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape.

ModelM4 32GBM4 Max 36GB
Qwen3.8 27B6.8 t/sQ4_K_S15.9 t/sQ5_K_M
Qwen3.8 125B · 6B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 35B · 3B active24.6 t/sQ3_K_M61.3 t/sQ4_K_M
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 27B6.8 t/sQ4_K_S15.9 t/sQ5_K_M
Gemma 4 26B · 4B active14.9 t/sQ4_K_M40.5 t/sQ5_K_M

Change the context, RAM or model in the calculator: M4 32GB · M4 Max 36GB

Every report on each card, with its source: M4 32GB · M4 Max 36GB

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