Sorry to seem rude, but it appears this OP is pretty impatient, and he's pretty set on the $600 budget, if you wanna go ahead and make your own PC, that's fine, but the purpose of this thread was to find a pre-built gaming computer in the budget he wants.
Lol exactly. I got a EVGA GTX 760 SC 4gb and it's pretty "OP" for Minecraft but it's not like I use it just for MC as that would be stupid lol.
All he said that he wanted to run minecraft at higher fps. You don't need an i7-4690k, gtx 760s and water cooling to get that even WITH shaders and texture packs which are the only thing that would tax your system.
Ugh I am done commenting. You are so contradicting it's not even worth commenting anymore as it's like talking to a brick wall.