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Poll: Ryzen 7950X3D, 7900X3D, 7800X3D

Will you be purchasing the 7800X3D on the 6th?


  • Total voters
    191
  • Poll closed .
No but it does for other tasks when gaming. The 7950X3D does not when gaming. I suggest you watch the PC World video to better understand. It's not a dummy, it is just not being used at all when gaming.

Cinebench? have you tried that? that's not a background task.
 
Also, Intel's Hybrid CPU's work in the same way. it doesn't use the E-Cores when you're playing games.
Yes it does, that is 100% wrong. It will use the P-Core for games and push background tasks to E-Cores.

The point being and what was understood is that peope were expecting that even if your game is using Four x3D cores the other background tasks would be on the other CCD completely. Not sure why it is an issue if on one CCD if the game is not needing all the cores though and the others shut down to save power etc.

If you have a game that uses all 8 cores then the other CCD is no longer parked and it will use the other cores for the other tasks then. It just load shifts when needed and is smart enough not to load up both CCDs when it isn't requried from what I can understand.
 
I was discussing this with someone the other day and how a dual 3D cache of the 7900 would be a monster, but probably cost way more than the 7950X3D.
Right.

I think it would probably be £100 more, that's not acceptable.

The way this works is.
 
Yes it does, that is 100% wrong. It will use the P-Core for games and push background tasks to E-Cores.

The point being and what was understood is that peope were expecting that even if your game is using Four x3D cores the other background tasks would be on the other CCD completely. Not sure why it is an issue if on one CCD if the game is not needing all the cores though and the others shut down to save power etc.

If you have a game that uses all 8 cores then the other CCD is no longer parked and it will use the other cores for the other tasks then. It just load shifts when needed and is smart enough not to load up both CCDs when it isn't requried from what I can understand.

Cinebench is not a background task.
 
Cinebench? have you tried that? that's not a background task.
I feel you are purposely missing the point. I'm not making a personal attack against AMD, it is what it is. The 7950X3D is not functioning the same as a 7950X or 13900k. When gaming the second CCX is turned off. It is not used at all. This should have been made clear.
 
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I feel you are purposely missing the point. I'm not making a personal attack against AMD, it is what it is. The 7950X3D is not functioning the same as a 7950X or 13900k. When gaming the second CCX is turned off. It is not used at all. This should have been made clear.

Have to agree here, If I was to buy a 7950X3D I would want all cores available and background tasks pushed to the other CCD. i.e discord, skype, browser etc etc. I have a feeling AMD will find a way of addressing this if this really is the case, maybe just works as is to get it out there.
 
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Have to agree here, If I was to buy a 7950X3D I would want all cores available and background tasks pushed to the other CCD. i.e discord, skype, browser etc etc. I have a feeling AMD will find a way of addressing this if this really is the case, maybe just works as is to get it out there.
Of course the same as if I was buying a 7950X. Hopefully they can address it.
 
I feel you are purposely missing the point. I'm not making a personal attack against AMD, it is what it is. The 7950X3D is not functioning the same as a 7950X or 13900k. When gaming the second CCX is turned off. It is not used at all. This should have been made clear.

I don't think using Cinebench is an effective way to test that, its a high load, its too simplistic to be used as a confirmation.

For one you can't turn the CCD off on the fly in windows, its parking it, if you look in Ryzen Master the cores at idle (Parked) are labelled "Sleep" if any of the cores on the second CCD are not labelled "Sleep" they are not parked, they are doing stuff.
 
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Cinebench? have you tried that? that's not a background task.
We are not just on about Cinebench though? We are saying when you game on an Intel system it just puts the game on the P-cores and the background tasks etc on the E-cores.

The AMD system is different it will put the game on the x3D CCD and then any background tasks if they fit on spare cores on the same CCD. It only moves background tasks to the second CCD if games use all 8 cores of the first CCD.

Some are saying that the secondary CCD doesn't do anything whilst you are gaming and you are stuck with an 8 core CPU when gaming even if you have lots of background tasks running but I am not sure if that case because the linked video so far is not good and I haven't watched the PC world one to compare what others are saying with my understanding above from other videos.
 
I feel you are purposely missing the point. I'm not making a personal attack against AMD, it is what it is. The 7950X3D is not functioning the same as a 7950X or 13900k. When gaming the second CCX is turned off. It is not used at all. This should have been made clear.

Just a heads up bud, Humbug has a reputation here across most of the community for being pro AMD. He’s just ignoring the scheduler issues and how say for a streamer this is quite a significant deal, especially when these chips were a big seller in that segment (as previously allot would run 2 system setups). Plus various other workflows, I often game on my setup while other production activity is going on on my 2nd monitor etc.

It’s a shame AMD didn’t implement any hardware scheduling, unfortunately it seems like a lazy attempt to sell some CPUs and misdirection with 7800x3d delayed launch. Hopefully in their next part (9950x3d) they give us the good stuff.
 
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I feel you are purposely missing the point. I'm not making a personal attack against AMD, it is what it is. The 7950X3D is not functioning the same as a 7950X or 13900k. When gaming the second CCX is turned off. It is not used at all. This should have been made clear.
Again is that the case, does it not wake if you have enough tasks to do so. In that it is parked because most games use say 4-6 cores so other background tasks just fill the rest of the CCD. (It isn't the CCX by the way). Then if you have a game that utilises the full 8 cores of the first x3D CCD the second non-x3D CCD will switch on to pick up the tasks?
 
I don't think using Cinebench is an effective way to test that, its a high load, its too simplistic to be used as a confirmation.

For one you can't turn the CCD off on the fly in windows, its parking it, if you look in Ryzen master the cores at idle are labelled "Sleep" if any of the cores on the second CCD are not labbeled "Sleep" they are not parked, they are doing stuff.
He did test some other programs as well. Effectively the other cores are not used. It is what it is but if you buy a standard 7950X all the cores are used when gaming and for other tasks whatever they may be. I would expect the same for the 3D version but that is not the case. Hopefully they come up with a solution.
 
We are not just on about Cinebench though? We are saying when you game on an Intel system it just puts the game on the P-cores and the background tasks etc on the E-cores.

The AMD system is different it will put the game on the x3D CCD and then any background tasks if they fit on spare cores on the same CCD. It only moves background tasks to the second CCD if games use all 8 cores of the first CCD.

Some are saying that the secondary CCD doesn't do anything whilst you are gaming and you are stuck with an 8 core CPU when gaming even if you have lots of background tasks running but I am not sure if that case because the linked video so far is not good and I haven't watched the PC world one to compare what others are saying with my understanding above from other videos.
Gordon tested it

SOTTR browser and R23 4Threads all in CCD0
SOTTR browser and R23 16 Thread both CCD0 and CCD1

So its not a dummy CCD or anything like hair chasers is saying but its not as elegant as e-cores more testing is needed for say streaming on a single PC compared to 13900k.
 
Yes it does, that is 100% wrong. It will use the P-Core for games and push background tasks to E-Cores.

The point being and what was understood is that peope were expecting that even if your game is using Four x3D cores the other background tasks would be on the other CCD completely. Not sure why it is an issue if on one CCD if the game is not needing all the cores though and the others shut down to save power etc.

If you have a game that uses all 8 cores then the other CCD is no longer parked and it will use the other cores for the other tasks then. It just load shifts when needed and is smart enough not to load up both CCDs when it isn't requried from what I can understand.

Intel try to do that with E cores. It’s a little iffy though and the One API Intel are pushing has improved over time, but still needs some work.
 
Again is that the case, does it not wake if you have enough tasks to do so. In that it is parked because most games use say 4-6 cores so other background tasks just fill the rest of the CCD. (It isn't the CCX by the way). Then if you have a game that utilises the full 8 cores of the first x3D CCD the second non-x3D CCD will switch on to pick up the tasks?
The PC World video said that if they used a program that used all the cores together (he did mention an example but can't remember) the other chip woke up. If not then it all went to the cached chip. I hope its wrong as I bought one but if it's right it doesn't feel like a great move keeping it quiet and not releasing the single CCD version at the same time.
 
Gordon tested it

SOTTR browser and R23 4Threads all in CCD0
SOTTR browser and R23 16 Thread both CCD0 and CCD1

So its not a dummy CCD or anything like hair chasers is saying but its not as elegant as e-cores more testing is needed for say streaming on a single PC compared to 13900k.

That’s the challenge and the primary point though bud, it’s not consistent and the workarounds, whitelisting and general reliance on windows scheduling causing such inconsistency / mess. It begs the question, why on earth didn’t they implement a hardware scheduler.

I find AMD using Windows Gamebar utterly hilarious :cry:
 
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Gordon tested it

SOTTR browser and R23 4Threads all in CCD0
SOTTR browser and R23 16 Thread both CCD0 and CCD1

So its not a dummy CCD or anything like hair chasers is saying but its not as elegant as e-cores more testing is needed for say streaming on a single PC compared to 13900k.
So as long as SOTTR remains on the x3D CCD0 then it is fine surely? There is no reason to move off a single CCD if you don't need to because the cores are not different in the same way Pcores & Ecores are. If anything parking a full spare CCD when it isn't needed is part of why it is so energy efficient and it only loads that up etc when needed.
 
He did test some other programs as well. Effectively the other cores are not used. It is what it is but if you buy a standard 7950X all the cores are used when gaming and for other tasks whatever they may be. I would expect the same for the 3D version but that is not the case. Hopefully they come up with a solution.

Background tasks are not things you double click on and load up, a background task is something windows is doing and you don't even know about it.
That's my problem with this, its using A to confirm B is happening, A is not B.
 
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