AMD Ryzen 9 9950X3D and 9900X3D to Include 3D V-Cache on Both CCD Chiplets, According to Latest Report

[Peter_Brosdahl]

AMD's first round of AM5 featuring 3D V-Cache technology, most notably the Ryzen 7 7800X3D from 2023, saw significant performance gains over the AM4 Ryzen 7 5800X3D, but its AMD Ryzen 9 9950X3D and 9900X3D processors could be real game changers.

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[Niner51]

I found this interesting as well.

https://overclock3d.net/news/cpu_mainboard/amd-ryzen-7-9800x3d-box-and-details-leak/

 

[Elf_Boy]

I think this is a good move.

Core parking just isnt stable (IMO) (maybe stable isnt the right word, finished? Ready?) I click play from steam/Battle.net/GoG or double click an icon on my desktop and I can watch core parking go on/off/on/off as the game loads. Cut Scenes in particular but not just core parking off all activity moving back and forth between CCD 0 and 1. From watching task manage/resource monitor, not gaming pretty much just uses CCD 1 with little or no activity on 0. Not that I push my system much outside games. It's almost like I functionally have two separate CPU's that are exclusively used. With the 3d cache on both dies this would hopefully not happen.

Hmmmm time, I think to see what happens with some bench marks.

 

[Peter_Brosdahl]

Just dropping this here. I missed seeing it initially and only found by accident when I was looking for something else a few days ago. At this point it's over a week since being talked about so I'm not going to post in the news section.

Unannounced Ryzen 9 9950X3D dominates Ryzen 7 9800X3D in Factorio benchmark — Ryzen 9000X3D flagship up to 18% faster than current fastest gaming CPU

The 9800X3D may not be the gaming king for long.

www.tomshardware.com

 

[Burticus]

This is a good thing, right?

 

[Peter_Brosdahl]

Yep, assuming true probably what we're all hoping for. Other rumors are an early 2025 release and reveal at CES. I think the hardest part for me will be deciding between 9900 and 9950 X3D.

 

[Brent_Justice]

A 9950X3D is in my future, if this is true.

 

[LazyGamer]

It's mostly a good thing - but the main problems were still inter-CCD latency (cores on separate CCDs had to talk through the IOD) and that the non-X3D CCD clocked quite a bit higher, so the Windows scheduler just couldn't help but move stuff over to it.

We'll still have the inter-CCD latency issue, but with the Zen 5 X3D CCD in the 9800X3D running almost as fast (and effectively faster) than the 9700X, the solutions to keeping games on a single CCD (preferably the X3D CCD) are potentially as easy as just running the non-X3D CCD slower, if say we got a repeat of the 7900X3D / 7950X3D with only one of two CCDs having stacked cache.

Really, the schedular is just going to have to get significantly smarter. Solutions to making performant but efficient CPUs are unlikely to get less complicated over time, IMO.