llamaperf

M1 Max 32GB vs M5 Max 36GB for local LLMs

2 reports on the M1 Max 32GB and 14 on the M5 Max 36GB

Which is faster for local LLMs?

On Qwen3.8 27B at 4-bit, the M1 Max 32GB has 15.8 generation tokens/s (one run); prompt processing 81.8 tokens/s (one run); the M5 Max 36GB has 22.4 generation tokens/s (2 runs). Those are community reports whose engines and settings differ, so the gap is a rough sign, not a controlled measure of the two cards. Memory bandwidth, which caps how fast a card can write, is 13% higher on the M5 Max 36GB (410 GB/s on the M1 Max 32GB, 461 on the M5 Max 36GB).

M1 Max 32GB
Memory
32GB unified
Memory bandwidth
410 GB/s
FP16 compute
10.4 TFLOPS
Reports
2
M5 Max 36GB
Memory
36GB unified
Memory bandwidth
461 GB/s
FP16 compute
not on record
Reports
14

Measured on both

Generation and prompt processing speeds from plain runs (one device, one request, no speculative decoding, the whole model in the device's memory) of the same model size at the same bit class. Each side shows the engines and reported context behind its median. Context can mean a configured window or prompt depth, so these are community comparisons with differing settings. How to read these

ModelM1 Max 32GBM5 Max 36GB
Qwen3.8 27B4-bit15.8one runPP 81.8 (one run)MLXcontext not stated22.42 runsOllama, 1 not stated16K context, 1 not stated

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. Where a model was also measured above, the measurement wins.

ModelM1 Max 32GBM5 Max 36GB
Qwen3.8 27B20.1 t/sQ4_K_S19.7 t/sQ5_K_M
Qwen3.8 125B · 6B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 35B · 3B active73.2 t/sQ3_K_M75.9 t/sQ4_K_M
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 27B20.1 t/sQ4_K_S19.7 t/sQ5_K_M
Gemma 4 26B · 4B active44.3 t/sQ4_K_M50.2 t/sQ5_K_M
DeepSeek V4.1 Flash 552B · 16B activedoesn't fit at these settingsdoesn't fit at these settings

Change the context, RAM or model in the calculator: M1 Max 32GB · M5 Max 36GB

Every report on each card, with its source: M1 Max 32GB · M5 Max 36GB

More comparisons