So, I've had a 9600K for a little while, maybe 8 months, and it's a decent CPU - I've got it clocked happily to 5GHz with an -2 AVX offset, and it seems happy and stable under every test and in use. The system is quick: MSI Z390 Gaming AC 16GB Hyperx Predator @ 4Ghz 2080Ti OC But I can't help feeling my system performance could benefit from a more serious CPU. I know it won't make a bit of difference in gaming - CPU is a complete irrelevance in 4K gaming these days with the GPU the bottleneck. But for Windows general system use? Would I benefit, for example, from going from 9600K to 9900K? Should I consider Comet Lake and a new mobo? Threadripper (and a new mobo). Or just stick with what I have because it really is performing very well indeed. Sure, the synthetic benchmarks don't match the top CPUs but do they even matter?