A little over a year ago we got our first look at Samsung's 840 EVO drive, the first drive to prominently feature energy efficient TLC NAND along with really solid performance. It's a drive that was a big hit with consumers because it was priced well and was super power efficient. Plus Samsung's SSD marketing campaign didn't hurt either (remember this gem?). This time around the 850 EVO still features TLC NAND but now it's of the 3D Vertical NAND (V-NAND) variety making it the first to market on the client drive. While other makers haven't even ventured into the TLC NAND market, Samsung is already on their second generation TLC drive. Available capacities are 120GB, 250GB, 500GB and 1TB with MSRP's ranging from $99.99 to $499.99. They sent us over a 120GB and 500GB drive to see what we think.