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jtbayly • yesterday at 11:45 PM • 1 reply • view on HN

It’s not obvious to me. It’s somewhat surprising, even, given the specs I just looked up:

M1 Max: 400 GB/s memory bandwidth, ~20.8 FP16 Tflops

M4 Pro: 273 GB/s memory bandwidth ~17.2 FP16 Tflops

Replies

nodesocket • yesterday at 11:55 PM

True but memory bandwidth is not the entire story. Geekbench (while not a end-all benchmark) shows:

                      Single-Core      Multi-Core
  M1 Max, 10-core     2,204            14,004
  M4 Pro, 14-core     3,311            24,711
Single-threaded CPU: M4 Pro is roughly 1.5× as fast. Multi-threaded CPU: M4 Pro is roughly 1.75× as fast. GPU: roughly equal to a full 32-core M1 Max, with the M4 Pro slightly ahead in Geekbench Metal.
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