What is DDR4?
The Joint Electron Devices Engineering Council (JEDEC) is expected to sign off on a final DDR4 standard this summer. But a draft of the spec and its key attributes were issued last August. Those preliminary specs call for DDR4 memory to operate at a maximum of 1.2 volts (20 percent less than current DDR3 memory) and achieve data transfer rates of 3.2 billion transfers per second (double that of the top-end speed of DDR3′s memory bus).
