Memory chip that supercharges smartphones and smashes performance of PCs despite tiny size unveiled by Samsung. The Korean electronics company’s new 256-gigabyte (GB) embedded memory chip will rev up the next generation of high-end mobile devices by providing high capacity storage at PC-beating performance levels all within a compact design that’s smaller than micro SD memory cards. How fast? This new card can transfer (read) data at speeds of up to 850MB/s – that’s nearly as fast as a typical hard drive found…