Hi All, Debating the purchase between the cMBP and rMBP. Are the dual-core i5 processors the same (outside of the 2.4 vs. 2.5)? Retina screen doesn't matter much to me, only the performance of the machine. Want to make sure that by buying the cMBP, I'm not buying anitquated processor? I do understand that the Haswell vs. Ivy Bridge will result in better battery life on the rMBP but is that the only performance improvement?