2013 new Air ran sub: flat overall performance and older

I believe many of my friends have watched the 2013 WWDC (Apple Developers Conference), but have to say that the current WWDC did not meet the demands of hardware control, because Apple released the new Macbook Air though equipped with Intel's new Haswell ULT processors, but the whole appearance does not have any updates, including exciting display. 11 inches and 13-inch versions, respectively, are still stuck in 1366x768 and 1440x900 resolution, while not as equipped as previously rumored retina screen. Nor is there any change in battery capacity and 11-inch version of 35Wh, and 13 inches version was 50Wh. New Macbook Air The biggest change is that the CPU (processor), NAND (flash memory) and DRAM (Dynamic Random Access Memory) on.


All new Apple Macbook Air upgrade to the Intel Core i5-4250U processor, all models of the reference clock frequencies down to 1.3GHz, Turbo Boost, but remains in the post-2.6GHz. Although the reference clock frequency is lower, but because the maximum frequency has not changed, it is expected that the performance does not decrease. To prove this point, we passed one pair Cinebench test run sub to test its overall performance with last year's models at the same level.

In the multi-threaded test, the previous generation 13 inches Macbook Air is equipped Core i5 1.8GHz frequency processor is slightly faster than this generation clocked at 1.3GHz Core i5-4250U processors, but in single-threaded test two are identical, MT test of about 5%, although there but not much. Do not be fooled by the reference clock frequency, which is a combination of the basic clock, maximum frequency and cooling solutions is what determines the performance of the key.


You can let clocked at 1.7GHz Core i7 processor upgrade to 3.3GHz (i7-4650U), both with Haswell GT3 class graphics core, Core i5 maximum graphics core clocked at 1GHz, the maximum core Core i7 graphics clocked at 1.1GHz. Reference frequency from 350MHz GPU down to 200MHz, helps to reduce idle power consumption.

In storage, Apple led the PCIe-based interface SSD solid state hard drive, the latest Mac Pro, Macbook Air also includes a new PCIe-based interfaces have used SSD instead of SATA drives. Let's look at OS X systems analysis, which revealed two PCIe 2.0 interface, can achieve in each direction 1GB / S.

Although I heard Sandisk also launched against Apple PCIe solution, but in this system, but uses a Samsung controller. Quick Bench software through revealed a peak of read and write 800MB / S.

Obviously, the battery life is brand new Macbook Air biggest improvement, as Haswell platform for power optimization, Apple claims that in 2013 the 13-inch MacBook Air for up to 12 hours on a single charge.

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