Hardware.Info posted Samsung 950 Pro 256GB / 512GB review: super fast PCIe M.2 SSDs
A quote from the article:
Finally: the first fast M.2 SSD has hit the consumer market. The Samsung 950 promises much higher speeds than other currently available SSDs, with max speeds of over two gigabytes per second.Samsung 950 Pro 256GB / 512GB review: super fast PCIe M.2 SSDs @ Hardware.Info
Nearly one and a half years ago, Samsung released the 850 Pro SSD, which was a little faster than its predecessor, the 840 Pro. This drive still used a SATA-600 connection, whose speed limitations have been causing a bottleneck for SSD speeds for quite some time.