hey everybody, a buddy of mine wants to upgrade to 4K gaming, mainly around 60 FPS, budget isn't an issue as he plans on saving up, his GPU is an RTX 2080 with 8 GB of VRAM, his CPU is an Intel Core i7 - 7700 quad core 3.6 GHz and he has 16 GB of RAM, what would he need to upgrade to accomplish this? any help would be appreciative.