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The Windows scheduler/admin issue is the difference of a few percentage points and it also applies to Zen 4. That it is such a big thing this generation is prec
by zamadatix 2y ago
The Windows scheduler/admin issue is the difference of a few percentage points and it also applies to Zen 4. That it is such a big thing this generation is precisely why it's a lame release.
E.g. look at the Phoronix numbers you linked. More than "it's Linux" they benchmark a bit heavier in the workstation/server tasks which is particularly good for focusing on what this generation improves (things like AVX 512 performance). Despite this:
5600X -> 7600X = 45% increase
7600X -> 9600X = 25% increase
The last generation was nearly twice, and not just in hyper specific workloads.
If anything levels out about this generation it'll probably be when AMD gets around to releasing the 3D versions early next year. They shoot themselves in the foot from a media/review perspective on that each release because there are always CPUs from the previous generation that smash certain cache heavy workloads better than the new shiny thing at release and then the 3D version comes out with less general discussion and coverage months later.
- eightysixfour 2y agoThe 5600x -> 7600x generation went backwards, dramatically, in power consumption though. The way that I look at, in two generations, we got an 82.9% increase in performance with essentially no power consumption change. That's incredible. There are also substantial gains in areas that are not AVX accelerated - looking at Python performance, database performance, etc.
- zamadatix 2y agoThe 7600X did average 19 W higher in Phoronix's benchmark but that's certainly not the explanation for the 45% performance gain and benchmarks matching the 9x00X parts to the wattage levels of the 7x00X parts don't show perf/watt improvements, though it is nice to see saner default limits rather than eking that last 5% of perf instead. 82.9% in two generations/4 years is decent but few are disappointed with the performance gains of getting off Zen 3, they're disappointed with the performance gains of Zen 5 itself.
- eightysixfour 2y agoThe 7600x used 28% more energy than the 5600x to get those big gains. That’s not a small amount - it kept me from upgrading my SFF. My guess is that if you power limited the 7600x, the generational gains would look more linear.