In the past Intel would quote a CPU's maximum speed, a "2.4GHz Core 2 Duo" would run 2.4GHz at most or clock down to lower speeds when needed. Now with the 13's i5 for example Intel calls it a 1.7Ghz chip. Yet it seldom, if ever, even runs a 1.7GHz. Most of the time it idles at about 800Mhz and then turbos up to 2.4GHz under dual core load or 2.7GHz under single core load. Apple's marketing never even mentions the turbo speeds and Intel labels it a i5 1.7GHz CPU ?