Ok I'm PISSED! I just bought a mac pro with AMD FirePro D700 6144 MB to photo editing. I noticed that it's a bit sluggish with my 4k Dell monitor. I figured what I can do I already have the best mac there is guess I'll have to live with it. And then BAM, the new iMac comes out with AMD Radeon R9 M295X. Will it perform better with photo editing?