i5-3570

My PC is: i5 3570 ( non-K) 16GB DDR3 Main: Gigabyte B75M-D3V I'm learning to made animation from 3d model and rendering video. I read many posts on internet. It say that " if you want gaming, take i5-3570. If you want editting, rendering video, take i7-3770.". However. Is it really worth to...

I have a GIGABYTE H61M-S2P Rev 2.0 and my current CPU is i3-2100 and it has been amazing thank god. It's been very hard to find a used i7 3770 or a 3570 and thank god i have found a 3570K and non K My question is, they're both of the same price, cheap (about 70$). Which one should I get? Will...