Max turbo is down a bit on the 2675QM. It was 3.3GHz on the 2720, but now it's 3.1GHz. The two, three and four core turbo limits are also down by 200MHz compared to what they were in early 2011 Configure your MacBook Pro to order with these options, only at the Apple Online Store: 2.9GHz dual-core Intel Core i7 with Turbo Boost up to 3.6GHz and 4MB shared L3 cache; 3.0GHz dual-core Intel Core i7 with Turbo Boost up to 3.7GHz and 4MB shared L3 cache; 256GB, 512GB, or 768GB of flash storage; MacBook Pro with Retina Display and the Specs, Tests, and Price of Apple MacBook Pro 13 (Early 2015) with i5-5287U, Intel Iris Graphics 6100, 13.3”, WQXGA (2560 x 1600), IPS, 512GB SSD, 8GB DDR3, Mac OS X USA ($) United States United Kingdom India Deutschland France Canada España Belgium Netherlands Poland Sweden България Australia Singapore Italia 中国 日本 Display: MacBook Pro 15” Retina (2015) Size: 15.4 Inches: Info: Retina display. 15.4-inch (diagonal) LED-backlit display with IPS technology; 2880-by-1800 native resolution at 220 pixels per inch with support for millions of colors MacBookPro11,5 Mid 2015 (DG): MJLT2LL/A (2.5 GHz Core i7) MacBookPro11,5 Mid 2015 (DG): MJLT2LL/A (2.8 GHz Core i7) 256GB, 512GB, 1TB SSD Replacement Kit for Apple MacBook Pro Retina A1502 & A1398 (Early 2015 – Mid 2015). Includes Solid State Drive, Nylon Spudger, T5 Screwdriver, and P5 Screwdriver. Configure your MacBook Pro to order with these options, only at the Apple Online Store: 2.7GHz quad-core Intel Core i7 with Turbo Boost up to 3.7GHz and 6MB shared L3 cache; 2.8GHz quad-core Intel Core i7 with Turbo Boost up to 3.8GHz and 8MB shared L3 cache; 16GB memory; 512GB or 768GB of flash storage; MacBook Pro with Retina Display and the Here’s a few examples of our mid-range SSD’s offering the right speed and great value for money: Aura X2 Flexx LX300 SSD Fledging Feather M13 Turbo These SSD’s are also compatible with your MacBook Pro, Early 2015 - Mid 2015, but you won’t get the benefit of the higher speeds. Transcend 850 Aura N2 **This applies to the following models. Sintech NGFF M.2 nVME SSD Adapter Card for Upgrade 2013-2015 Year Macs(Not Fit Early 2013 MacBook Pro) (Black) NOTICE:because too many customers can use it,I suggest you to try it again if your MAC can't detect nVME SSD. SyV71E.