# 5950x, 7950x or 12900K for an upgrade?

**URL:** <https://forums.chaos.com/t/5950x-7950x-or-12900k-for-an-upgrade/154460>\
**Category:** Hardware\
**Created:** [October 18, 2022, 12:57am UTC](https://forums.chaos.com/t/5950x-7950x-or-12900k-for-an-upgrade/154460 "2022-10-18T00:57:50Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![Juraj\_Talcik](https://avatars.discourse-cdn.com/v4/letter/j/ecccb3/32.png) [@Juraj\_Talcik](https://forums.chaos.com/u/Juraj_Talcik)\
**Post date:** [October 18, 2022, 3:03pm UTC](https://forums.chaos.com/t/5950x-7950x-or-12900k-for-an-upgrade/154460/2 "2022-10-18T15:03:05Z")

</div>

My answer from previous thread still works quite well for this question as well :- )

> [@New budget PC: i9 12900 or Ryzen 9 5950x?](https://forums.chaos.com/t/new-budget-pc-i9-12900-or-ryzen-9-5950x/154340/4):
>
> > [@New budget PC: i9 12900 or Ryzen 9 5950x?](https://forums.chaos.com/t/new-budget-pc-i9-12900-or-ryzen-9-5950x/154340/3):
> >
> > Ryzen 7950x is out now, just FYI.
> 
> 7950X + DDR5 + Any board = Quiet a lot of money.
> 
> In terms of performance (from most to least) : Ryzen 7950 \> i9 13900 \> Ryzen 5950 \> i9 12900

You can use DDR4 even for the newest Raptor Lake based i9 13900K, it’s the biggest benefit of the platform. You have to buy the respective board though.  
You sadly can’t reuse all 8 modules of memory though, only Threadrippers and Xeons have 8 memory slots.  
It will not cause any meaningful bottleneck in Corona Renderings and majority of workstation tasks.

You can reuse your 750W PSU, but you have to use low-powered GPU and ideally power limit both CPU and GPU. 750W is very little for current CPUs & GPUs, mainly because of transient spikes (300W GPU can temporarily use up to 500W, even if it’s just fraction of second).  
You can use your D15S cooler with Raptor Lake and Ryzen alike. You might just need a bracket, Noctua sends it for free if you still have sale receipt.  
You can reuse your case, but you will need to keep the front open all the time for enough air-flow. Latest CPUs & GPUs run _very_ hot.

---

_[View the full topic](https://forums.chaos.com/t/5950x-7950x-or-12900k-for-an-upgrade/154460)._