Not content to just announce a 500GB solid-state drive this month, A-Data has pulled the curtain off another set of products: the 300 Plus series. These new 2.5″ Serial ATA SSDs have lower capacities than the half-terabyte offering, but they purportedly offer higher read performance.
The 300 Plus line includes 32GB, 64GB, 128GB, and 256GB variants, and A-Data claims those drives can reach a sustained 250MB/s during reads—that’s about 9% faster than the 500GB XPG’s 230MB/s. However, top write speed ratings are the same for both drives (160MB/s). A-Data attributes the 300 Plus series’ higher read performance to a “special” mobile SDRAM buffer.
Again, for reference, Intel’s speedy X25-E SSD is rated for top write speeds of 250MB/s and top read speeds of 170MB/s. Intel uses also uses mobile SDRAM as a buffer—a Samsung chip with the part number K4S281632I-UC60, to be precise.