Question Ryzen 7950X3D vs 9900X3D ?

[Barrdock]

Which of those two CPUs is better to pair with a 7900 XTX for a gaming build ?

 

[Lutfij]

If it's between those two processors(mentioned in your thread title), then get the 9000 series.

 

[Barrdock]

If it's between those two processors(mentioned in your thread title), then get the 9000 series.

Why?

 

[Phaaze88]

I'd say neither. If gaming is about the hardest thing the PC is going to do, and you want to set it and forget it, get the single CCD cpu.
The core parking driver for the dual CCD cpus isn't infallible, and scenarios will appear where games get executed on the wrong CCD, and require manual input on your end until AMD gets a patch(if ever) out.

BUT~, if it has to be between these 2, then I guess the 9900X3D:

View: https://www.youtube.com/watch?v=kH6JGU7ZrWM

 

[QyInvoLing]

For gaming, pick 9800x3d instead.

 

[SyCoREAPER]

9900X3D and 9950X3D only make sense if you do productivity work like encoding, non-GPU related. Intensive tasks. Outside of that they serve no benefit for gaming.

As a matter of fact, the 9950X3D uses more power in a low state than a 9800X3D does at max.

7950X3D is sort of for gaming is inferior to a 7800X3D, something to do with cache layout, core optimizations, etc.. Won't pretend I know details, only that's it's not better for gaming.

7800X3D if you're on a budget which your obviously not asking about the 9900X3D or the 9800X3D. Both are basically neck to neck at gaming but the 9800 has more thermal headroom and a overall better chip.

 

[QyInvoLing]

9900X3D and 9950X3D only make sense if you do productivity work like encoding, non-GPU related. Intensive tasks. Outside of that they serve no benefit for gaming.

As a matter of fact, the 9950X3D uses more power in a low state than a 9800X3D does at max.

7950X3D is sort of for gaming is inferior to a 7800X3D, something to do with cache layout, core optimizations, etc.. Won't pretend I know details, only that's it's not better for gaming.

7800X3D if you're on a budget which your obviously not asking about the 9900X3D or the 9800X3D. Both are basically neck to neck at gaming but the 9800 has more thermal headroom and a overall better chip.

No, 7950x3d is better than 7800x3d if you use Process Lasso to manually put games on CCD0 and automatically put everything else on CCD1. I get an improvement of 1%low in CS2 by 15%, compared to simply disable CCD1 in BIOS(equals to 7800x3d overclocked 0.2GHz)
Simply install AMD's chipset driver can make it similar to 7800x3d, in rare conditions, the driver scheduled the game to ccd1 then it's inferior to 7800x3d, but I haven't seen this scene of wrong schedule yet.
But, anyway, the 15% improvement doesn't match the extra price of 7950x3d compared to 7800x3d. I get it when 7950x3d is 3500$ while 7800x3d is 3000$, then it's acceptable. For normal gamers, buy 7800x3d is fine.

 

[Colif]

As pointed out, if its gaming, why choose either and just get a 9800x3d .

BUT if you actually use PC for more than just gaming (on top of), I am not sure I would step down from 8cores of X3d down to 6 on the 9900x3d. I would pick the 9950x3d instead for my next pc... which I have.

 

[VizzieTheViz]

Either will be great but for gaming the 9900 will be better (better single threaded performance than 7950, and single threaded performance is generally more important for gaming) and the 9800 better still (because it has 8 cores with 3D cache where the 9900 “only” has 6 such cores)

Unless you play a specific game that can use more than 8 cores to good effect or need the additional cores for work stuff the 9800x3D would be best.

If you want more than eight cores then get the 9900x3d or 9950x3d and be prepared to fiddle around for some games to get them to use the x3d cores.