llamaperf

M4 Pro 24GB vs M5 Pro 24GB for local LLMs

3 reports on the M4 Pro 24GB and 3 on the M5 Pro 24GB

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 12% higher on the M5 Pro 24GB (273 GB/s on the M4 Pro 24GB, 307 on the M5 Pro 24GB). The estimates below compare them on the models people run most.

M4 Pro 24GB
Memory
24GB unified
Memory bandwidth
273 GB/s
FP16 compute
9.2 TFLOPS
Reports
3
M5 Pro 24GB
Memory
24GB unified
Memory bandwidth
307 GB/s
FP16 compute
not on record
Reports
3

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 Pro 24GBM5 Pro 24GB
Qwen3.8 27B24.5 t/sQ2_K31.1 t/sQ2_K
Qwen3.8 125B · 6B activedoesn't fit at these settingsdoesn't fit at these settings
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 35B · 3B active81.1 t/sQ2_K102.9 t/sQ2_K
Qwen3.6 27B24.5 t/sQ2_K31.1 t/sQ2_K
Gemma 4 26B · 4B active54.7 t/sQ3_K_S69.3 t/sQ3_K_S

Change the context, RAM or model in the calculator: M4 Pro 24GB · M5 Pro 24GB

Every report on each card, with its source: M4 Pro 24GB · M5 Pro 24GB

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