I read somewhere, but can't remember where, that a major reason those APUs aren't as efficient as the Apple ones is a conscious decision to share the architecture with Epyc and therefore accept worse efficiency at lower wattage as a tradeoff.
Can someone confirm/refute that?
It isn’t comparable at all. In MT, maybe it is comparable with the M4 Pro still winning. In ST, it is 3-4x ahead of Strix Halo in efficiency.
They are ok but yeah they do not have anything like the memory bandwidth of an m3 ultra. But they also cost a lot less. I’m primarily looking to replace my older desktop but just have to make sure i can run an external gpu like the A6000 that i can borrow from work without having to spend a week fiddling with settings or parameters
In this review, Hardware Canucks tested [1] the M4 Pro (3nm 2nd gen) and the 395+ (4nm) at 50w and found the performance being somewhat comparable. The differences can be explained away by 3nm vs 4nm.
[1]: https://www.youtube.com/watch?v=v7HUud7IvAo