this post was submitted on 24 Oct 2023
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Ryzen 7950x vs 7950x3d for an all rounder setup? (lemmy.world)
submitted 1 year ago* (last edited 1 year ago) by Bondrewd@lemmy.world to c/linux@lemmy.ml
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Im planning my new config and one of the primary issue is that Im unsure whether 7950x3d is worth the hassle. If I went with 7950x, I would surely want to fiddle with overclocking.

As far as Im aware, 7950x3d can be overclocked, but only the one without the 3d cache. How reliable is this?

Also, I suspect that the TDP difference is a non-issue, as it is mostly just a limitation of the 7950x3d thermals rather than actually better power consumption.

Also the L3 cache is 64mb for the 7950x vs 128mb for 7950x3d. How much does that matter?

Things I want to do: gaming, software development, virtual machines, VR, AI related work. Im asking here since I mainly want to know about the status on linux.

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[–] dudewitbow@lemmy.ml 1 points 1 year ago

How I see it, its more that if you use multi CCD cpus, you have to manage the CPU manually as some games prefer cache, some games prefer clockspeed, and the OS picks the wrong one at times (usually the clock speed) as the OS assumes the higher clock speed = faster. As the thread director works correctly with Intel chips for the most part (where the e cores have a lower clock) so the e cores are often not selected for performance.

The solution AMD will have to transition to is to exchange the other CCD for the core count focused design (e.g Zen 4 vs Zen 4c) which would be clocked lower to receive similar benefits from the current itteration of thread director.