Similar setup and issue. Tested my GPU and seems to be fine. Turns out that there’s an issue with i9-13900K and i9-14900K and Unreal (Epic is not to blame).
What should help is updating your motherboard firmware, e.g. on my Gigabyte motherboard an update (version F30) says:
- …
- Introduce the “Intel Default Settings” and enabled as default
- Introduce microcode 0x12B as the final mitigation of 13/14th Gen desktop processor Vmin Shift Instability issue according to Intel official
i. 0x12B encompasses 0x125 and 0x129 microcode updates, and addresses elevated voltage requests by the processor during idle and/or light activity periods.
ii. microcode 0x129 (August 2024) addresses high voltages requested by the processor.
iii. microcode 0x125 (June 2024) addresses eTVB algorithm issue.