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M4 Mac mini's efficiency

I had to pause some of my work getting a current-gen AMD graphics card running on the Pi 5 and testing a 192-core AmpereOne server to quickly post on the M4's efficiency. I expected M4 to be better than M1/M2 (I haven't personally tested M3), and I hoped it would at least match the previous total-system-power efficiency king, a tiny arm SBC with an RK3588 SoC...

I expected M4 to be better than M1/M2 (I haven't personally tested M3), and I hoped it would at least match the previous total-system-power efficiency king, a tiny arm SBC with an RK3588 SoC... but I didn't expect it to jump forward 32%. In 1.25U of rack space, you could run three Mac minis, idling around 10W, giving almost a teraflop of CPU performance. (Not to mention there's a fast GPU/NPU, 10 GbE, and tons of high speed Thunderbolt IO in the back.)

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