llamaperf

M5 Max 36GB vs M5 Pro 48GB for local LLMs

14 reports on the M5 Max 36GB and 9 on the M5 Pro 48GB

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 1.5x higher on the M5 Max 36GB (461 GB/s on the M5 Max 36GB, 307 on the M5 Pro 48GB). The estimates below compare them on the models people run most.

M5 Max 36GB
Memory
36GB unified
Memory bandwidth
461 GB/s
FP16 compute
not on record
Reports
14
M5 Pro 48GB
Memory
48GB unified
Memory bandwidth
307 GB/s
FP16 compute
not on record
Reports
9

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.

ModelM5 Max 36GBM5 Pro 48GB
Qwen3.8 27B19.7 t/sQ5_K_M12.0 t/sQ6_K
Qwen3.8 125B · 6B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 35B · 3B active75.9 t/sQ4_K_M47.5 t/sQ5_K_M
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 27B19.7 t/sQ5_K_M12.0 t/sQ6_K
Gemma 4 26B · 4B active50.2 t/sQ5_K_M23.2 t/sQ8_0

Change the context, RAM or model in the calculator: M5 Max 36GB · M5 Pro 48GB

Every report on each card, with its source: M5 Max 36GB · M5 Pro 48GB

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