Sorry you think I am fooling but I use this PC for my Music studio ONLY. Since much of the music is emulated it takes a lot of power to keep clicks and pops out of the recording session and/or latency. It only cost $30.00 more for the K so I bought it just in case, but I have doubts of ever going above 4 ghz. The i5 4460 was only failing on songs with several tracks so I figure the 4790 is fine but for $30.00 why not get the K. So, no I don't expect to go to water cooling like I am with my main computer. The fact that the fins are 5/8" wide versus 1 1/4" really baffles me but I have pics to prove it. I did go with the older bigger heat sync, but maybe there is a reason Intel would use the smaller sync so I am asking, somebody may know why this was done. I haven't turned it on yet.