Quote (PattonJr @ Feb 4 2019 04:05am)
8600k is still an i5 (no Hyperthreading). The 9600k will have a better thermal compound between the die and the heat spreader, that's about it but they are the same price so why not.
As for your build, you will want a better cpu cooler than the 212. I would recommend Be Quiet Dark Rock 4 or Cryorig H5 (whichever you can get for less $$ or like the look of more).
Though to be honest, the 8700k will be overkill for you unless you stream or use CAD professionally.
It's also going to be sluggish as fuck without a SSD.