I do custom PC commissions and have put together a lot of computers over the years. In all that time I have learned one major thing. Do not judge a piece of hardware by it's specs on paper.
Every single build that I've put the Pentium-K in has soared past it's competition. With a $25 Hyper 212 I've yet to see a chip I couldn't easily get to 4.5, and at 4.5GHz it merrily dances past every single i3 ever, it also has surpassed some older-gen Ivy Bridge i5s and is on-par with score on newer gen i5s when overclocked.
The two cores in this beast are multi-threaded; and not only were frame rates higher in every game I pre-load and test on client PCs but frame times were absolutely perfect. According to the testing I've done you would commonly see a difference of 1-20 FPS depending on the game and GPU, literally every game I tested between CPUs reported better results for the pentium when compared to the FX 6300
Here's two results I got a few days ago; one from an overclocked 6300 and the other from an overclocked G3258. The Pentium was running a Reference model stock-clocked R9 290 and the Fx 6300 was running a
BRAND NEW Zotac AMP! Omega GTX 970 extremely overclocked.
FX 6300 Black Edition:
http://i.imgur.com/QlqYBw7.jpg
G3258: http://i.imgur.com/EykVpX5.jpg