Samsung SSD 840 Pro 128GB, 256GB and 512GB - Custom PC | Aug 2013

The SSD 840 Pro range dominates in sequential write speeds too: the 256GB and 512GB models managed around 500MB/sec in AS-SSD. The 840 Pro also impressed in single-queue-depth 4KB random read performance. All three drives produced chart-topping results, with speeds of between 35-36MB/sec in AS-SSD and 38-39MB/sec in Crystal Disk Mark.