I’m not insulting you, I’m just correcting your inconsistencies and incorrect information. Your arrogance is astounding.

You aren’t gaming at 4k then if you have star citizen at your claimed fps. And yes 45-75 fps is good for 4k on a 3090. Even with a 13900k cpu, you will still see that same drop, It’s the gpu that’s the bottleneck at that point. Sounds more like you are gaming at most at 2k. Which will yield a higher fps on your gpu. Did you even setup the nVidia power settings or go into the game graphics settings to turn the graphics up? Do you even own a 4k monitor?

The “my rig is top notch” statement is mute when you never went into your bios and manually setup your hardware in the first place.

Open task manager, if you have a 13900k CPU, and I’ll bet your running your DDR5 ram at 2100 mhz. If you spent the money on a i9-13900k you better have DDR5-6000 ram, with it properly setup in bios. And if you bought the “k” variant of the CPU, then you better have at minimum a 360mm AIO or custom loop with the clock manually set to 6.0GHz, otherwise you wasted your money for hardware you won’t push to its max potential.

Again, your also comparing stock clocks. A 9900k OC to a minimum of 5.0GHz with DDR4-4400 won’t bottleneck a 4090 running 4k, only if your running it at 8k.

A 13900k stock clock of 5.6 GHz w/ E cores disabled is not much more than the OC’ed 9900k and won’t make a difference to it unless you OC that 13900k to 6.0-6.2 GHz (For 8k gaming).