Its last flagship, the Plextor M6e Black Edition was an attractive drive with loads of features, but only supported the slower PCIe 2.0 x4 interface. Plextor is favored brand amongst many enthusiasts, but like its rivals, it has taken Plextor awhile to enter the market with competitive PCIe-based SSD. + High write speeds, very good all-round performance. It is only available in the M.2 2280 form factor and is offered in four capacity points: 128GB, 256GB, 512GB, and 1TB. If it’s any consolation, the XPG SX8000 is the most affordable SSD we have rounded up here by a good margin. Even SLC caching cannot save the XPG SX8000 from being outclassed by the competition when it came to random data and smaller data blocks. While sequential read and write speeds were suitably high, its random 4K read and write performance was quite disappointing. It has proven to be very effective, but how does it fare on the XPG SX8000? This is the same caching technique that many entrylevel TLC NAND SSDs use to boost read and especially write speeds. The XPG SX8000 also features SLC caching, which dedicates a portion of its memory to work in a single-level cell mode to boost performance. ADATA is also claiming read speeds in excess of 2GB/s, and write speeds beyond 1GB/s. Like the rest of the drives featured here, the XPG SX8000 supports the fast PCIe 3.0 x4 interface and the new NVMe protocol.
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