I5 4670 vs i5 4670k

Solution
Oh yeah! Lol, you'll be able to fit a Beefy GPU in there! Have fun with your new rig! Also, I believe the r9 280X can run in crossfire with not only another r9 280X, but a HD 7970. So later down the road, if you want a second GPU and AMD works out the kinks in their drivers, you could save yourself a good bundle on a second GPU.
the k means unlocked multiplier, if your going to overclock get 4670k if not get the non k version, but most if not all people are going to tell you to get the 4670k, and I recommend it too, you will love it.
 
i5 4670K: The K signifies that the CPU is capable of overclocking.

i5 4670: The "non K model" represents the CPU alone and is not capable of Overclocking.

Overclockable CPUs are usually recommended to gamers, enthusiasts, or the people that feel they need the extra performance. It's usually a issue that involves a better Value CPU.
 
When the 4670k is not overclocked it with play like the 4670, but when overclocked it will player better the 4670 plus if you have a decent graphics card it will do what ever you want to do with it.
 
Oh yeah! Lol, you'll be able to fit a Beefy GPU in there! Have fun with your new rig! Also, I believe the r9 280X can run in crossfire with not only another r9 280X, but a HD 7970. So later down the road, if you want a second GPU and AMD works out the kinks in their drivers, you could save yourself a good bundle on a second GPU.
 
Solution