Jivaro wrote on Mar 13, 2025, 19:43:
For the game to run, I had to use the Intel Extreme Tuning Utility to change the performance core ratio from x57 to x55. Using x56 sometimes works, and sometimes doesn't. I have to do the same thing with Marvel Rivals, which is also an Unreal 5 game. I have an Intel(R) Core(TM) i9-14900K 3.20 GHz. If anybody can explain to me why I have to make this change I would be very grateful. I happened to find the fix in a Marvel Rivals thread back when it was released and now I find myself using it for every Unreal 5 game I play...but I don't understand the "why".
No offense but have you been living under a rock and missed the whole Intel 13th and 14th gen degradation debacle?
If you have to lower clocks to get an Unreal Engine 5.x game to run then chances are through the roof that your CPU is affected by the degradation as Unreal Engine games (especially during the initial shader compilation) have always been the no. 1 "benchmark" to expose Intel CPU degradation.
Did you ever install all the microcode fixes (there were three major ones) via BIOS updates? Your microcode should be 0x12B as that is the latest one.
Well, instead of writing an essay, I will just point you directly to the
Intel forums (with further reading links).
I had an i9-13900K that I bought in October 2022 and that I deemed fine but the more details emerged from this story, the more I became convinced that I had a degraded piece of shit CPU in my PC. I never had a problem with Unreal Engine shader compilation or excessive crashing but for me it started with the nVidia drivers failing to install... just a simple "nVidia driver failed to install" error message and no further details.
There were some other oddities with my system as well that I won't list here to avoid an essay but long story short is: I RMA'ed my CPU in fall 2024, got a brand new 13900K from the Netherlands (I'm in EU-DE) and eBay'ed it because I got an AMD AM5 system as a replacement with an awesome 9700X CPU at first and then I was lucky enough to get my paws on a 9800X3D on launch day for €529. eBay'ed the 9700X and I'm a happy camper with a rock stable system ever since (though AMD still has its minor quirks sometimes).
BTW, I'm not quite buying Intel's explanations to this day because degradation is/was supposed to be irreversible (would be 100% plausible, too, right? ... can't fix degraded hardware via microcode updates).
However, my issues with the nVidia drivers went away completely after the first of three microcode updates so if you ask me there is probably more to it than Intel has admitted. Oh, well. It's a moot point for me now. Their RMA process was great and fast. From creating the ticket to new CPU in hand, it took them eight days IIRC (Germany - Netherlands - Germany).
If I were you, I would RMA that CPU ASAP. It's toast.
P.S.: Wikipedia also has a good
summary of events. Intel extended the warranty for 13th/14th gen CPUs by two years, i.e. five years warranty total. If anyone has an unstable Intel system then I would RMA that CPU and make sure you have all the microcode updates installed (if you have the latest BIOS installed then this should be the case anyway).
A great plus of the warranty extension is that, if you have had it with Intel like me, you can sell the new RMA CPU with lots of leftover warranty. I got €334 on eBay for the RMA replacement of my two+ year old i9-13900K in November 2024. Ka-ching!
This comment was edited on Mar 13, 2025, 22:10.
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