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Topic Summary

Posted by: StiX
« on: November 12, 2018, 11:49:03 »

This 29% IPC increase in *certain* workloads is most likely attributed to introduction of proper 256-bit wide registers for AVX instructions. Zen1 used combined 128 bit registers for AVX, which was much slower
Posted by: Matthew Connatser
« on: November 11, 2018, 15:09:54 »

Thank you of informing me of this typo, sometimes my fingers slip. By the way, I checked to see if other outlets had reported on this news and I couldn't find that any had. Finally, I think you meant "have," not "jave." I think we can both understand how easy it is to make slight typos.
Posted by: Mikeleks
« on: November 11, 2018, 13:28:25 »

Branch prediction not brand*. Try more and bring something unique and not news that we jave already heard. Clicking bait.
Posted by: Redaktion
« on: November 11, 2018, 04:59:13 »

Buried deep within the footnotes of AMD's announcement of Rome, it seems AMD is claiming an IPC improvement of about 29% when comparing Zen 2 to Zen 1. AMD did not disclose exactly how much more IPC Zen 2 had over Zen 1, but it seems 20% or more for at least some workloads can be expected.

https://www.notebookcheck.net/AMD-claims-Zen-2-has-29-higher-IPC-than-Zen-1-in-certain-workloads.359556.0.html

 
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