Which processor is better? K series or Xseries

[music.roarproductions]

i'm confused between intel i7 7700k and i7 7740x processor. both are almost same. can any one tell me which processor should i go with? and why?

 

[theonerm2]

Neither. I suggest 8600K or 8700K. Kaby Lake X is pretty much the same as regular Kaby Lake.