L502x - i7 2640m - DDR3 RAM frequency and capacity | DELL Technologies
How much faster is DDR4 RAM than DDR3 RAM of the same speed, for example, if I have DDR3 RAM 2400MHz? - Quora
G.SKILL Releases The World's Fastest DDR3 32GB (8GBx4) Memory at 3000MHz Extreme Speed Designed for 4th Gen Intel Core Processors and Z87 Motherboards - G.SKILL International Enterprise Co., Ltd.