I have i7 3770k, so should i download the AVX version?
Haswell, Sandy Bridge, and Ivy Bridge should all support it along with x86 AMD processors from the FX line and Bulldozer and Piledriver. I could be wrong so don't quote me on that. I'm literally too lazy to google it. So the same as you
With my Ivy Bridge I get a crash with the AVX build. My Sandy Bridge CPU works fine with the AVX build.