With a sequential read speed of 200 megabytes per second (MB/s) and sequential write speed of 160MB/s, Samsungs MLC-based 2.5-inch 256GB SSD is about 2.4 times faster than a typical HDD. Furthermore, the new 256 GB SSD is only 9.5millimeters (mm) thick, and measures 100.3x69.85 mm.
Once introduced, the Samsungs 256GB SSD will mark the largest capacity SSD from the global market leader in SSD sales, effectively eliminating density as a barrier to SSD adoption in the consumer space.
With development of the 256GB SSD, the notebook PC is on the brink of a second stage of evolution. This change is comparable to the evolution from the Sony Walkman to NAND memory-based MP3 players, representing an initial step in the shift to thinner, smaller SSD-based notebooks with significantly improved performance and more than ample storage, said Jim Elliott, vice president, memory marketing, Samsung Semiconductor, Inc.
Through major advancements in proprietary controller technology, Samsungs new MLC 256GB SSD, besides being comparable in speed to an SLC-based SSD, also boasts reliability equal to that of SLC SSDs, with a mean time between failures (MTBF) of one million hours, while costing considerably less. Power consumption is also exceptionally low at 0.9 watts in active mode.
In addition, the drive offers a sophisticated data encryption process that prevents data stored on the SSD from being accessed in an unauthorized manner, even after the SSD is removed from the PC.
Overall, the number of computing units in which SSDs are being offered is expected to increase dramatically once Samsungs previously announced 128GB SSD and the new 256GB SSD are launched. At present, Samsung is actively involved in high-capacity SSD design-in activities for all of the top PC and server manufacturers from the U.S., Asia, and Europe.
Samsung is expected to begin mass producing the 2.5-inch, 256GB SSD by year end, with customer samples available in September. A 1.8-inch version of the 256GB SSD is expected to be available in the fourth quarter of 2008.