The MacBook Air 2012 is a screamer, and though the CPU-based benchmarks show about a 15-20% improvement over the MacBook Air 2011 models, by far the biggest performance boost comes from the new flash memory (SSD) that Apple is using for storage on the 2012 models. In our tests, the disk used in the newest MacBook Air models is up to 217% faster than the previous model years drives.
MacBook Air 2012 SSD: writes at 364MB/sec, reads at 461MB/sec
MacBook Air 2011 SSD: writes at 152MB/sec, reads at 145MB/sec
MacBook Air 2010 SSD: writes at 157MB/sec, reads at 188MB/sec
t is difficult to convey just how fast the newest MacBook Air is, but it’s safe to say the performance is extremely impressive and I haven’t ever used a laptop that feels faster. You can attribute that to the ultraquick flash storage.
Interestingly, the SSD tested within the MBA 2012 is the TS128E model, a Toshiba drive. The SSD tested with the MBA 2011 and 2010 models are Samsung. You may recall that Apple also ships faster Samsung drives in some MacBook Airs, that appears to still be going on with the 2012 updates which suggests the tested Toshiba flash drive is probably slightly slower than a Samsung model, though the performance difference between the two drives is likely to be completely negligible at this point.
All read and write speeds were benchmarked with DiskSpeedTest, a free disk testing app available from the Mac App Store.
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