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