Jeff S. (fakity.delete@this.fake.com) on October 8, 2020 12:16 pm wrote:
> Blue (blue.delete@this.blue.com) on October 8, 2020 9:58 am wrote:
> > AMD's announce Zen3 with an average of 19% IPC uplift "in desktop applications"
> > and about a 5-10% clockspeed boost (ST, MT unknown).
>
> Even though the launch event was light on technical details (though maybe not so much for a consumer
> oriented one), it looks like actual uarch change details will start coming out imminently.
>
> A pre-print from MICRO '20 later this month:
> Improving the Utilization of Micro-operation Caches in x86 Processors
>

CLASP and Compaction (a) improve uop cache utilization/fetch ratio, dispatch bandwidth, average branch misprediction
> penalty and overall performance, and (b) reduce decoder power consumption. These optimizations combined improve
> performance by 5.3%, uop cache fetch ratio by 28.8% and dispatch bandwidth by 6.28%, while, reducing the decoder
> power consumption by 19.4% and branch misprediction latency by 5.23% in our workloads.

>
>

Thanks for this; will take a read.