My 2015 15" MBP 2.5 repeatedly (15 times in a row) gets over 13800-13900+ Geekbench score Multi core. Looking at the score chart, it's running as if it's a 2.8. Are all CPU's created equal ? regardless of what MHZ stamped on the chip? Back when I was building PC's (overclocking) chips varied chip by chip on how high they could be oc'ed while being stable.