Samsung has enjoyed much success from their wildly popular 840 Series Solid State Drives. But they have just upped the ante by introducing the 840 EVO line. The 2.5″ SATA SSD 840 EVO is aimed at entry-level consumers, however the specs and potential performance seem anything but entry-level. While read/write speeds vary between models, the 250GB 840 EVO features speeds more than twice that of the previous generation. The 1TB model boasts rates of 540MB/s and 520MB/s respectively. Samsung is able to achieve these speeds thanks to the 10-nanometer class 128Gb high-performance NAND flash memory chip architecture and proprietary multi-core MEX controller.