AMD FX8320 vs SP3's I3 4020y

Hi all. I built a cheap pc last year for business purposes. Turns out the cheap rig was capable of decent music production and photoshop/ lightroom work as well. I'm wondering how the confirmed I3 process of the new Surface Pro 3 will stack up against the AMD chip.

Do you think it pales in comparison, or is about equal or better?

I'd love to save a few bucks when I purchase the surface, but I don't mind getting the i5 if I need to.

Thanks in advance.