So here is the deal, the 4300U i5 we know is in the surface pro 3. but we know nothing about the i7, is it going to be an i7-4500U? if so, it's basically pretty much exactly the same as the i5 in processing power they both have 2 cores, the i5 has a base of 1.9ghz, the 4500U has a base of 1.8ghz. but the 4500U has a 3ghz turbo, with the i5's turbo of 2.9ghz This is assuming that microsoft will put in a 4500U as the i7. It wouldn't be worth the extra money in my opinion. Intel Core i7 4500U vs i5 4300U time will tell. but, concidering power constraits, i'm pretty much betting the i7 will be a 4500U. Do you think it's worth a 150$ bump in price for a processor that gives less of a bump than the 4200u to 4300u?