DDR4 memory reaches the home PC market

DDR4 memory reaches the home PC market

DDR4 is the fourth generation of double data rate, synchronous dynamic random-access memory (SDRAM) after DDR (2002), DDR2 (2004) and DDR3 (2007). It features greater speed, memory density and energy efficiency, with devices using 20 nanometre (nm) process technology allowing consumer-grade modules of up to 32 GB. Though Samsung and others introduced DDR4 memory boards in 2013, processor boards like Intel's Broadwell did not yet support this standard. High-end servers in data centres were able to take advantage of DDR4 in 2014. However, the home PC market would have to wait until 2015.

		DDR	DDR2	DDR3	DDR4
	Year of release	2002	2004	2007	2013
	Speed	266 Mhz	400 Mhz	1066 MHz	2133 MHz
	Maximum size	1 GB	2 GB	16 GB	32 GB
	Energy required	2.5 volts	1.8 volts	1.5 volts	1.2 volts