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AMD Zen 5 rumours

GordyR said:
Yeah the way my desk is situated it really needs to be on the left. I was sick of having my computer on the floor so decided to go for the invertible darkbase pro 901 for this build so that I can actually see the thing.

Having everything upside down is odd for sure but I’m very pleased with the result. :)
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Gotta flip the aio logo upside down as well to match the fans
 
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cliffy said:
I got6 4 DIMMS running at 6400 CL32

AXitmyB.png
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Is that straight expo speeds cus that latency seems quite high..
 
I wonder if vcache will become a standardised feature, at the high end?

Or, is it simply too expensive to manufacture?

Zen 6 is supposed to have 16 core CCDs, so it might make sense to integrate this feature it into the main 16 core desktop CPU.
 
Dreadi said:
No idea what hypervisor is as I've never seen that message before :D
Are you gonna getting your hands on some cudimm and a new set up @LtMatt ?
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Go into your motherboard BIOS and disable SVM. If on Asus BIOS type F9 to search SVM.

Don't know, not sure it's going too make that much difference on AM5. Will wait and let others be early adopters and if gains are to be had, I'll get a kit.
 
LtMatt said:
Go into your motherboard BIOS and disable SVM. If on Asus BIOS type F9 to search SVM.

Don't know, not sure it's going too make that much difference on AM5. Will wait and let others be early adopters and if gains are to be had, I'll get a kit.
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Id guess mine is off as last aida I ran was 58ns but will check when I'm home Monday!
 
The better way would be to disable SVM mode, which disables virtualization. That's if you don't use that feature.
 
LtMatt said:
That 7800X3D result was not mine unfortunately, but was ran by a friend so i could get a comparison vs a best case 7800X3D score. The 7800X3D, or the 7950X3D with CCD1 disabled, are unbeatable in Cyberpunk 2077. Expect the same for the Zen X3D parts too.
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That sounds like a challenge :D

z8ESS5T.jpg
 
Matthew Hunt said:
Do you still have to park the cores on a 9950X in 24H2?
Is this what has been changed in the BIOS recently on motherboards to do this setting for you?
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Core parking on a 9950X in 24H2 is not necessary, like it is on a 7950X3D. In practice, there is no significant performance benefit from parking cores. In fact, having cores unparked can be marginally faster, though it may result in slightly higher power consumption and temperatures. If maximum performance is not critical and you prefer a slightly cooler CPU with lower power draw, then utilizing core parking and the balanced power profile would be advisable.

In order to get core parking working on the latest builds of Windows, all you need to do is install the latest AMD Chipset driver from the AMD website and then run this command to verify parking is active - powercfg.exe /queryprofile scheme_current profile_gamemode CPMinCores

If everything is functioning correctly, you should see the message displayed in the screenshot above. If it indicates 'not found' or something similar, attempt executing this command: start /wait Rundll32.exe advapi32.dll,ProcessIdleTasks. Afterward, allow your PC to idle for 5 minutes before re-executing the initial command. It should then display as in the screenshot, and core parking will be operational. Be aware that the process idle tasks command might take around 10 minutes as it sequentially processes different Windows background tasks.

EDIT - Corrected screenshot and wording.
 
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LtMatt said:
Core parking on a 9950X in 24H2 is not necessary, like it is on a 7950X3D. In practice, there is no significant performance benefit from parking cores. In fact, having cores unparked can be marginally faster, though it may result in slightly higher power consumption and temperatures. If maximum performance is not critical and you prefer a slightly cooler CPU with lower power draw, then utilizing core parking and the balanced power profile would be advisable.

In order to get core parking working on the latest builds of Windows, all you need to do is install the latest AMD Chipset driver from the AMD website and then run this command - powercfg.exe /queryprofile scheme_current profile_gamemode CPMinCores

If all works well, you receive the message in the screenshot above.

If for some reason it says not found, or similar. Try running this comand - start /wait Rundll32.exe advapi32.dll,ProcessIdleTasks

Leave the PC to sit for 5 minutes, then rerun the first command. It should now show as in the screenshot above and core parking will work.

Note the process idle tasks command may run for 10 minutes or so as it cycles through various Windows background tasks one by one.
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Thanks I have done the bottom command before but never the top command.
I currently have the cores not parked in 24H2.
 
g67575 said:
I wonder if vcache will become a standardised feature, at the high end?

Or, is it simply too expensive to manufacture?

Zen 6 is supposed to have 16 core CCDs, so it might make sense to integrate this feature it into the main 16 core desktop CPU.
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They might be able to move all the L3 under the main die now, would make the CCD much smaller (40%+ on 7x and ~30% on 9x chips).
 
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