Hey All, I've currently got a mid-2013 11" MBA(1.7GHz i7, 8GB RAM, 256GB SSD) for a portable machine, and I've been thinking of purchasing a 13" MBP to mostly replace it - I love the 11", but I really want a retina display, and after seeing the MB that Apple released, my hopes of the MBA getting a retina display anytime soon(if ever) have been greatly reduced. I was originally going to go all out, and get the "Ultimate" configuration, but after looking at benchmarks and what not, I might end up going with the stock 256GB SSD version with the 2.7GHz i5. It doesn't seem like the jumps to either the 2.9GHz i5 or the 3.1GHz processors really add that much oomph to the bottom line? Anyway, my real question is, has anyone else made an upgrade like this? What are the real-world differences in performance between the 1.7GHz i7 in my MBA and the 2.7GHz i5 in the MBP? I've looked up the Geekbench scores for each and here are the highs and lows: MacBook Air (11-inch Mid 2013) Intel Core i7-4650U 1700 2 Mac OS X 64-bit Single-Core Score: 3313 Multi-Core Score: 6451 MacBook Pro (13-inch Retina Early 2015) Intel Core i5-5257U 2700 2 Mac OS X 64-bit Single-Core Score: 3348 Multi-Core Score: 7111 It would seem like they're pretty close to each other in performance. But are the benchmarks for the air more forgiving since they're run so quickly? For example, would the MBP outperform the MBA significantly if it were performing longer running tasks, like compressing large files, applying photoshop filters, or compiling large amounts of code? What do you all think? Thanks for any advice or info!