The delta increase in storage speed is also highly evident at the all-important small-file level: in our tests, random 4 kB writes moved from 58 MB/s to 111 MB/s. We measured an average of 1221 MB/s for sequential writes, just a small way behind the 1542 MB/s we saw with the 512 GB flash drive in the top 2.5 GHz model. This mid-2015 MacBook Pro can now comfortably reach 2000 MB/s in reads at least although the smaller 256 GB capacity drive takes a small toll on peak write speeds.
Review macbook pro 2015 upgrade#
Now even this entry-level 15-inch laptop sees the benefit of an upgrade from two lanes of PCIe 2.0, to four lanes of PCIe 3.0.īest sequential speeds of the former drive were around 785 MB/s for sequential reads and 730 MB/s for sequential writes. We have been astonished by the speed increases available since Apple started rolling out PCIe-attached flash drives in 2013. In reality the Intel chip can field up to 32 GB of memory but Apple has set the ceiling at 16 GB, and since it’s soldered to the logic board there’s no scope for memory upgrades now or later. When we first met this integrated graphics processing unit (IGPU) in the late-2013 model MacBook Pro series, we were surprised to find how close in performance it could come to the dedicated Nvidia graphics.Īs we saw with last summer’s refresh, the memory configuration is now ‘maxed out’ at 16 GB of low-power DDR3 RAM, running at the Haswell chip’s memory clock speed of 1600 MHz. Packed inside the Intel processor is this MacBook Pro’s one and only graphics processor, designated by Intel as Iris Pro Graphics 5200. In addition its Intel Turbo Boost 2.0 technology allows at least one core to temporarily and dynamically overclock to 3.4 GHz providing temperature and current conditions allow. This processor has four real processor cores, each able to juggle two processing threads, thus replicating the effect of an eight-core chip.
In the case of the entry-level version at £1,599 we review here, that means an Intel Core i7-4770HQ with baseline clock frequency of 2.2 GHz.
Review macbook pro 2015 series#
But that was not to be, and so both of the new 15-inch models carry the selfsame Intel Core i7 Haswell processors as the Retina MacBook Pro series that was launched in July of last year.
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