ADATA is no stranger to SATA SSDs with an extensive catalog of models to choose from. We were impressed by the super budget-friendly SP550 and are currently finalizing a review of the midrange SU800, but that leaves out still more options like the SP900 and SU900. Deciding there wasn’t enough choices, ADATA is launching the SX950 at the very top, targeting gamers and users concerned about drive endurance.
The new XPG SX950 is a 3D MLC NAND drive powered by the same Silicon Motion SM2258 found in the SU800 and SU900 models. This controller only has four flash channels but mitigates that with the usual SLC fast-cache option. The SX950 will be priced slightly above the SU900 family, but to offset that will offer an MTBF rating of 2 million hours. More importantly ADATA is backing that rating up with a pointedly unique six year warranty.
|Sequential Read||560 MB/s|
|Sequential Write||520 MB/s|| 530 MB/s|
|Random Read||80,000 IOPS||90,000 IOPS|
|Random Write||90,000 IOPS||90,000 IOPS||85,000 IOPS|
|Endurance||200 TBW||400 TBW||800 TBW|
The rest of the specs are fairly typical for modern SSDs: 240GB, 480GB, and 960GB capacities, sequential ratings above 500MB/s and IOPS ranging from 80K on up. The use of MLC NAND alone will ensure consistently high performance, but adding a fast SLC-write cache on top of an MLC drive should theoretically keep the drive in a very high performance level for gamers. Lastly it is worth noting previous ADATA drives quickly dropped below launch MSRP, so consumers can expect street prices of the SX950 to do the same.