Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)

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MrTeal

Diamond Member
Dec 7, 2003
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Given how Zen5 compares to Zen4 in the standard parts, I would imagine if you limited the 9800X3D to a similar power envelope as the 7800X3D you'd get much closer performance. Probably still better in gaming since it could clock one or two cores higher if needed within that envelope, but probably not the runaway it is now.

That being said the 7800X3D is an awesome and efficient chip, but 100ish W for the 9800X3D really isn't out of line for a top end gaming CPU and is still well within the envelope for a normal PSU and decent low cost air cooler. I'd imagine the vast majority of buyers are fine with the tradeoff.
 

Abwx

Lifer
Apr 2, 2011
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Given how Zen5 compares to Zen4 in the standard parts, I would imagine if you limited the 9800X3D to a similar power envelope as the 7800X3D you'd get much closer performance. Probably still better in gaming since it could clock one or two cores higher if needed within that envelope, but probably not the runaway it is now.
The V-cache may use something like 10W, at 65W TDP/88W PPT it wouldnt be an accurate comparison with a stock 9700X, you ll have to set the X3D chip at 75W TDP/98W PPT to have the same cores power.
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
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Sold out already boys. Unless you want to pay $999 for it on Amazon.
$691 when I last looked. But the 479 was not going to last. I should have snapped it when I saw it, but I hate to ask more than $479 when I shipped it.
 

DAPUNISHER

Super Moderator CPU Forum Mod and Elite Member
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MrTeal

Diamond Member
Dec 7, 2003
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The V-cache may use something like 10W, at 65W TDP/88W PPT it wouldnt be an accurate comparison with a stock 9700X, you ll have to set the X3D chip at 75W TDP/98W PPT to have the same cores power.
I wasn't talking about comparing it to a 9700X, I was talking about the 7800X3D. The 7800X3D is also a 120W chip, but practically never gets there because of the thermal limits of its vcache structure.
Set both to 65W to normalize power, and then compare.
 

biostud

Lifer
Feb 27, 2003
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Given how Zen5 compares to Zen4 in the standard parts, I would imagine if you limited the 9800X3D to a similar power envelope as the 7800X3D you'd get much closer performance. Probably still better in gaming since it could clock one or two cores higher if needed within that envelope, but probably not the runaway it is now.

That being said the 7800X3D is an awesome and efficient chip, but 100ish W for the 9800X3D really isn't out of line for a top end gaming CPU and is still well within the envelope for a normal PSU and decent low cost air cooler. I'd imagine the vast majority of buyers are fine with the tradeoff.
Yeah, no problems found, still very efficient compared to more or less every other chip except the 7800X3D.

If anything they should simply have launched the regular zen5 as non-X parts if they wanted to launch them at a 65W envelope.
 

Abwx

Lifer
Apr 2, 2011
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I wasn't talking about comparing it to a 9700X, I was talking about the 7800X3D. The 7800X3D is also a 120W chip, but practically never gets there because of the thermal limits of its vcache structure.
Set both to 65W to normalize power, and then compare.

In this case you wont gain much with Zen 5, at same cores power the 9800X3D has to be clocked slightly lower due to better IPC, or at best it will end at same frequency.

So far at Computerbase they have the 7800X3D 19% more efficient in games, lower perfs but with an average of 61W vs 83W for the 9800X3D.

 

Josh128

Golden Member
Oct 14, 2022
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