PCIe SSDs may be technologically superior, but that doesn't mean you should always buy them over SATA drives. In this article, we'll look at the differences between SATA and PCIe SSDs and what you need to know to make an informed decision when buying an SSD. What Is a PCIe SSD? What is it about PCIe SSDs that make them more desirable and expensive than SATA SSDs? Does it come down to performance?