Is there a big the difference ?

[michael1423]

is there a big difference between the i4-4770k and the i7-4790k?

[AlwaysFSX]

Nope, only a slight thermal decrease.

[themaniac]

is there a big difference between the i4-4770k and the i7-4790k?

yes there is since there is no such thing as an i4 so the i7 absolutely destroys it

[Oshino Shinobu]

Nope, the 4790K is a little faster out of the box and runs cooler. 

[michael1423]

Sorry I'm using my iPhone 5s small screen big hands.

[pwn_intended]

As everyone said, if you already have the 4770, dont upgrade. If you are buying new, get the 4790 if the price difference isn't more than like $15-20.