Thread:Fandyllic/@comment-14871116-20130925052221/@comment-168424-20130925153920

Photoshop CS4 Mac OS X 10.8.5 on a MacBook Pro 2.66 GHz i7 with 8 GB RAM.

However, Adobe is pretty consistent between Mac and Windows. A few key shortcuts should be different, but it really shouldn't matter. Also, if you're not working with giant poster-sized photos, an i5 with about 4 GB of RAM should be fine. I can't say if an i3 would be okay, but it might be.