Lab Tested: Haswell MacBook Air benefits from faster graphics, flash storage
Posted 12 June 2013 - 06:39 PM
Posted 12 June 2013 - 07:01 PM
what does it matter? You realize that GHz isn't speed.. just frequency. Haswell cores are faster at a lower GHz than previous models. This gets you similar performance while using much less power.
Posted 12 June 2013 - 08:23 PM
Ur looking at base clock frequency, I imagine the turbo is the same. If you watched WDCC you will remember how they touted battery saving techniques with there wonderful, innovative maverick? well Microsoft has similar things in 8/8.1, but really its just software to take advantage of all the power saving features of haswell.
Posted 12 June 2013 - 10:54 PM
I bet it has to do with Intel's pricing for the Haswell CPUs. If you look at http://en.wikipedia....bile_processors the price of the CPU used in the previous Macbook Air (1.7 GHz i5-3317U) cost $225 whereas for the new Haswell processors http://en.wikipedia....bile_processors price levels are much higher, and the 1.7 GHz i5-4650U would cost $454. Apple made a choice that keeping the $999 price for the Air is more important, and also the significant graphics performance improvements make more sense. As others commented the turbo on the 1.3 GHz is actually the same as the old 1.7 so for single-threaded performance the impact is not as big. I'd personally opt for the BTO upgrade to the 1.8 GHz though just to be a bit more future-proof.
Posted 13 June 2013 - 03:39 AM
"Next from Macworld Lab: Battery life test results for the new MacBook Air, and a full review. Also coming up: A look at an ultimate configuration 2013 MacBook Air."
I'm really looking forward to those articles, as the ultimate-configuration model is what I have my eye on.
Posted 13 June 2013 - 06:29 AM
I would like to know the differences between the Air's HD Graphics 5000 and rMPB's HD Graphics 4000.
Posted 13 June 2013 - 06:51 AM
Perhaps more important is something I've yet to hear Apple comment on. Those new features should, to my untutored mind, make for an even greater battery life. The current 12 hours for the 13-inch model may jump to a solid 14 hours, particularly if users turn down the one power hog that can't be optimized, screen brightness.
This combination of Haswell with Mavericks appears to be so good that I may set aside my beloved but aging white MacBook and get the new MBA.
Posted 13 June 2013 - 08:05 AM
I'll bet it has more to do with higher MHz eating battery life than anything. Worst mistake I made was getting an i7 in my first Air. I don't do CPU intensive things on it and it needlessly cost me battery life and subjected me to obnoxious fan noise. Never again....
Posted 13 June 2013 - 09:17 AM
It was mentioned somewhere, keynote, or a web page. By going with the lower clock speed, this helped extend battery life to hit the 9 & 12 hour marks, without much of a change in actual "work done" speed. So as someone else mentioned, the GHz doesn't really matter with other changes in the Haswell chips.
Posted 13 June 2013 - 01:52 PM
Posted 13 June 2013 - 01:54 PM