worth upgrading my 2600k cpu?

[thegoodone2015]

i have a i7-2600k OC , playing fine all game atm, but my son starting to play more demanding game and i think i would like to change my pc for a better one, so by looking at the chart , i cant decide if it worth changing, if yes, for what cpu? cause i really want to see a huge improvement, thx, and i know i might change my motherboard, memorie and all that, but my first priority, its the cpu choice, thx all

 

[jaguarskx]

The i7-2600K is still pretty good for playing games. Switching to a Haswell or recently released Skylake generation CPU will only provide a marginal increase in performance compared upgrading to a more power graphic card.