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re: PC Discussion - Gaming, Performance and Enthusiasts

Posted on 1/31/24 at 2:05 pm to
Posted by Joshjrn
Baton Rouge
Member since Dec 2008
28462 posts
Posted on 1/31/24 at 2:05 pm to
I’m not in a position to load the video right now, but if it’s the one I’m thinking of, it’s less that he’s shitting on the x3D in general and more than he’s shitting on the… 7950?x3D he had in his system because the chip/Windows/programs/whatever don’t handle the hand off well between the 8 cores with the extra cache and the 8 cores that don’t. The system makes a ton of mistakes, and he got tired of micromanaging it.

Unless this is a brand new video that says something different, I don’t think he has any issue with the single die chips (everything below the X900) with 3D vcache.

Eta: to clarify the issue with the handoff, his chip only had the extra vcache on half of the cores. Some games were using the die (with half the cores) without the extra vcache, therefore defeating the purpose of having the extra vcache to begin with. Other tasks that don’t care about vcache and would do better with higher clock speeds would prioritize the slower die with the extra vcache, etc, etc.

Eta2: So a chip like the 7800x3D with only one die wouldn’t have the same problem, as every core has access to the extra vcache.
This post was edited on 1/31/24 at 2:11 pm
Posted by SaintEB
Member since Jul 2008
23016 posts
Posted on 1/31/24 at 2:14 pm to
quote:

Unless this is a brand new video that says something different, I don’t think he has any issue with the single die chips (everything below the X900) with 3D vcache.


Its is not new. You are correct, its the 7950 one, because I do recall him saying about the split core issue.

Posted by SaintEB
Member since Jul 2008
23016 posts
Posted on 1/31/24 at 2:18 pm to
quote:

Eta: to clarify the issue with the handoff, his chip only had the extra vcache on half of the cores. Some games were using the die (with half the cores) without the extra vcache, therefore defeating the purpose of having the extra vcache to begin with. Other tasks that don’t care about vcache and would do better with higher clock speeds would prioritize the slower die with the extra vcache, etc, etc.




I guess this isn't the case, but I thought I read somewhere that the 3d vcache on the 7950x3d was split, allowing it to be split between cores (say 8/8).
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