Re:Apple M1 Ultra Meanings and Consequences
by hajile on Monday March 14, 2022 @01:57PM
(#30675676)
Golden Cove has 6-wide decoders (that should be using massive amounts of resources).
Of course, it doesn't help that Intel lists laptop chip turbo frequencies to use either 95w or 115w and Anandtech's laptop review of one had the 12900H hitting those numbers with sustained power draw at an eye-raising 85w. That's 2-3x the power of M1 Pro and only 20-30% more performance.
That laptop also showed that cutting power from 85w to 30w roughly halved the performance. On the plus side, this means their power scaling is doing pretty well. On the negative side of things, it means their system gets worse multithreaded performance at 30w despite having 40% more cores.
Of course, it doesn't help that Intel lists laptop chip turbo frequencies to use either 95w or 115w and Anandtech's laptop review of one had the 12900H hitting those numbers with sustained power draw at an eye-raising 85w. That's 2-3x the power of M1 Pro and only 20-30% more performance.
That laptop also showed that cutting power from 85w to 30w roughly halved the performance. On the plus side, this means their power scaling is doing pretty well. On the negative side of things, it means their system gets worse multithreaded performance at 30w despite having 40% more cores.