In the end, the 525 Series drives are really the mSATA version of the 520 Series drives with some additional firmware tweaks that are unique to Intel. Being powered by the SF-2281 controller, they put up stellar numbers when faced with data the controller can compress to turbocharge performance. On the 60GB drives and up, performance is roughly the same in that respect with reads all topping out around the 555MB/s mark and writes in the 520MB/s to 530MB/s range..."
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