I was looking at getting a 9900k for my Gigabyte Aorus Z370 ultra gaming 1.0. I was looking at this as for the price, this is a great upgrade coming from an 8600k, as I can get a 9900k for less than £300 meaning the upgrade would only cost me around £200 if I sell the 8600k, This saves me from having to buy a new motherboard and sell the old one. Now I know that a 9900k will work in a Z370 board, but how well will it work, what will overclocking be like, how much performance am I losing out on by not getting a Z390 board and would vrm cooling be necessary?