I just got a base 2012 MacBook Pro 15" with 2.3 and all stock specs including 4GB RAM. I want to upgrade to either 8 or 16 GB Corsair from Amazon. The 8GB http://www.amazon.com/gp/product/B006EWUOL8/ref=ox_sc_act_title_1?ie=UTF8&smid=ATVPDKIKX0DER 8GB (2x4GB) DDR3 SODIMM kit for 2nd Generation Intel Core i5 and i7 notebooks Speed: 1600MHz Timing: 9-9-9-24 Pin Out: 204 Pin Voltage: 1.5V Density: 8GB (2x4GB Module) Limited Lifetime Warranty http://www.amazon.com/Corsair-Venge...16GX3M2A1600C10/dp/B0076W9Q5A/ref=pd_sim_pc_1 16 GB (2x8 GB) DDR3 SODIMM kit for 2G Intel Core i5 and i7 notebooks 1600MHz 10-10-10-27 latency 1.5 volts Auto-overclocking (no bios configuration required) Pin Out: 204 Pin The 8 has a lower latency and I dont know if that matters. Both have 1.5 volts but I have heard my 2012 15 inch 2.3 may need 1.35V. Im not sure if I would need the 16GB. I came from a 2011 iMac i5 2.5 with 12GB and used most of it editing though I would have a couple GB free. Anyhow, is this corsair compatible with my MBP? Im drawn to that as I have a Prime account and the shipping for 2day is free and the price is good. I had Corsair in my iMac and had no problems.