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glasshead969 | 5 years ago

M1 with all its CPUs pegged to 100% only hits 20W, so M1 still uses way less power than single core in Zen.

Edit: In fact I just ran Cinebench R23 single thread test and package power barely crossed 5W.

discuss

Yup, the MacMini M1 maxes out at 10.5W on single threaded workloads

imtringued|5 years ago

> M1 with all its CPUs pegged to 100% only hits 20W, so M1 still uses way less power than single core in Zen.

So do Ryzen CPUs. The 16 core Ryzen only needs 5W per core. It's purely a matter of frequency management.

These comparisons are meaningless because you can say stupid things like "Ryzens are more power efficient than Ryzens" and still be right.

my123|5 years ago

At 5W per core, you don't get anywhere near the single-threaded perf needed to beat an M1...

(20W per core is what it reaches on ST tests, with 17W more for the I/O die on desktop Ryzen, an overhead that'll be much lower on Cezanne hopefully)