I expected more even there... damn, zen 5 is really a flop.
For AVX512? It's a 27.3% performance increase at 12% less power vs Zen 4. With the same ish node and same die area, I'd say it's pretty great.
Even without specifically AVX512 workloads, they have a solid 18% gain across all tests with a ~10% power reduction to boot. Keep in mind this is without PBO, where Zen 5 gains another few % over Zen 4 (since it scales past the point where Zen 4 stops scaling).
Zen 5 for servers and workstations is anything but a flop IMO.
But is that from Marketing team or Engineering team?
If it's bandwidth starved then latency won't really matter, & you would be better off with the 2:1 divided instead. I seen what happens when Zen 3 was using 4,000mhz ram it's usually slight slower 1% lows & 0.1% lows in games by like a 1% to 4% it's so small you'd never notice it really. Not unless your average lows were brough down in gaming.
It's both IF and Memory bandwidth bottlenecked, y-cruncher shows the bandwidth bottleneck and games show the latency issue (both memory and inter CCD). Problem is, increasing memory bandwidth without increasing the IF doesn't bring about as much benefit as it should have but it still allows some nice gains to be had. What DDR5-8000 truly allows is lower
effective latencies. When tuning for 6000Mhz, you quickly run into the latency floors for that speed but DDR5-8000 with relatively tight-ish timings allow both a reduction in latency and increase in bandwidth. Not saying it's easy, but I think that's what AMD are targeting with X870 boards.
I'm going to do the tests in a couple of months after X870 launch just to see the impact it has and how the scaling differs from the 7950X3D it will replace. My prediction is that when memory is tuned properly at 8000mhz, and a slight bump to IF, it should be pretty even or close to the 7950X3D in games.