I’m looking for a good mobo cpu memory combo for the money I’m in the U.S Cali I will only game at 1440144hz/4K60hz it will go in:
Corsair 460x Case with 6 fans
Corsair AX860 PSU
x2 Samsung 850Evo 500GB
You will not see any difference in gaming performance at 4k with a RTX2080 between a i9 9900K and an AMD R5 2600. You are GPU limited at that resolution and no amount of CPU overclock is going to fix that. Therefore the AMD 2700X with a X470 motherboard and 16GB DDR4-3000MHz RAM is the best bang for your buck. Even at 1440p the difference will be about 5% or almost unnoticeable.
No need for an aftermarket cooler unless you want to add one, the Wraith Prism included is more than good enough.
Decent B450 mobo, you can opt for a X470 if you find it has a feature or features you want or need.
Pricy as it is the RAM is on the QVL list.
EDIT: jeremyj_83 beat me to it on the rez/CPU points.