Last week Samsung held their 2013 SSD Global Summit and invited roughly 150 technology journalists along for the ride. We posted several videos from the conference in our news, but we couldn't publish everything. Although several new products were on display, many from the enterprise side, the new 840 EVO was the main attraction.
The Samsung 840 EVO is the successor to the original 840 SSD, the world's first retail SSD to use TLC (triple-level cell) NAND flash. At the time of writing, the EVO model sits between the original 840 and 840 Pro. Armed with a new controller that's 100MHz faster than that of the 840, the EVO is a faster product that also utilizes new second-generation TLC NAND flash, now at 19nm.
One of the hottest topics at the conference didn't actually come from the hardware solution, but rather a software focused topic from Samsung's recent acquisition of NVELO. Built into the Magician suite, RAPID Mode adds another layer of system cache, much like Superfetch to the storage system. When enabled, RAPID will utilize up to 1GB of system memory for a tier 0 like read and write cache. There are several performance benefits to using DRAM for storage cache, but there is also a possibility of losing data due to the volatile nature of DRAM.
Let's take a deep dive into the Samsung 840 EVO architecture and features and then later in the day look at the actual reviews.