Keep in mind they were using 25W Penryn Pxxxx processors just yesterday. The gains in battery life today are marginal except in the 13" model.
But the new graphics chips also use less power than the old ones - and they switch on the fly so you don't have to remember to turn off the high powered GPU when you don't need it. Result is significantly better battery life (if the specs are correct).
wow, i actually feel bad for all those 13" buyers who have been holding out for months for this update. Glad I got my 13" five months ago, this update would not have been worth the wait 😀
Maybe not for you. Apple's page says that the new ones are up to 80% faster than the old ones for some things.
I wonder why so many people get "it's not worth it FOR ME" confused with "it's not worth it"?
um...automatic graphics switching is pretty huge.... and 10hr battery life
Yes, plus faster graphics and more virtual cores on the 15 and 17". Decent upgrade. Not stellar, but decent.
Unfortunately, I decided that my old 2.3 GHz Core 2 Duo 17" does what I need it to do and I"ll be using the laptop less since my traveling is slowing down, so I'm sticking with the old one. Too bad - I like new toys.
I don't really get it why people are upset there's no quadcore. I mean, everyone was eagerly expecting arrandale (right?), which is dualcore. No surprise in this update...
Equally important, if you have an app that benefits from a quad core, the i5 and i7 mobile have 4 virtual cores. Not quite as good as 4 real cores, but still better than Core 2 Duo.
The 13" MBP is C2D, not Core i5. You got hosed.
Yet another person who confuses "it's not worth it to me" with "it's not worth it".
For a huge percentage of computer users, C2D is more than adequate. Heck, that system is faster than the one I use every day - and I don't have any immediate need to upgrade. At some point, it's no loner about the specs - and for a large percentage of users, we've reached that point.