Something not many people are aware of is that there are actually two physically different Sony VAIO Pro 13 ultrabook configurations being distributed, those that have been constructed for pre-configured sales and those for custom build. Pre-configured configurations may use a SATA based PCIe SSD, while all custom builds use a much higher performing native PCIe SSD. We were a bit confused as Sony was clearly advertising ‘PCIe solid state drive’ in its configurations worldwide, and even stating that the PCIe ‘booted-up faster, launched apps at lightning speeds and enjoy snappier overall performance capabilities versus a traditional mSATA SSD drive’ In the case of pre-configured SATA PCIe SSD systems, this marketing is incorrect.



Link: The SSD Review