llamaperf

M2 Max 96GB vs M4 32GB for local LLMs

7 reports on the M2 Max 96GB and 14 on the M4 32GB

Which is faster for local LLMs?

On Qwen3 8B at 4-bit, the M2 Max 96GB has 43.0 generation tokens/s (one run); the M4 32GB has 19.7 generation tokens/s (one run); prompt processing 223.8 tokens/s (one run). 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 3.4x higher on the M2 Max 96GB (410 GB/s on the M2 Max 96GB, 120 on the M4 32GB).

M2 Max 96GB
Memory
96GB unified
Memory bandwidth
410 GB/s
FP16 compute
13.6 TFLOPS
Reports
7
M4 32GB
Memory
32GB unified
Memory bandwidth
120 GB/s
FP16 compute
4.3 TFLOPS
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

ModelM2 Max 96GBM4 32GB
Qwen3 8B4-bit43.0one runOllamacontext not stated19.7one runPP 223.8 (one run)llama.cppcontext 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.

ModelM2 Max 96GBM4 32GB
Qwen3 8B17.6 t/sFP1611.4 t/sQ8_0
Qwen3.8 27B5.2 t/sFP166.8 t/sQ4_K_S
Qwen3.8 125B · 6B active36.2 t/sQ3_K_Mdoesn't fit at these settings
Qwen3.6 35B · 3B active37.6 t/sQ8_024.6 t/sQ3_K_M
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 27B5.2 t/sFP166.8 t/sQ4_K_S
Gemma 4 26B · 4B active12.5 t/sFP1614.9 t/sQ4_K_M

Change the context, RAM or model in the calculator: M2 Max 96GB · M4 32GB

Every report on each card, with its source: M2 Max 96GB · M4 32GB

More comparisons