 "4GB DDR4 2133 MT/S (PC4-2133)" (PC4-2133) | Tradineur.com"
"Capacidad total: 4 GB; Frecuencia (Bus clock rate): 2.133 MHz; Tecnología: DDR4 tft; Kit: No; Tipología: DIMM analogico; Generica: Sí" 
 Peso 0.0500 Alto 100.82 Ancho 59.70 Profundo 81.94 Fabricante Crucial Ref. proveedor CT4G4RFS8213 Marca Crucial
 "Samsung - DDR4 8 GB DIMM 288-pin" " Samsung 288-pin M393A1G40DB0-CPB System Memory (RAM) CDW.com
"Samsung DDR4 is an optimized solution for highly virtualized environments, high-performance computing and networking.Achieving bandwidth speeds up to 3.2Gbps, Samsung DDR4 delivers higher performance at a higher speed than both DDR2 and DDR3. Compared to DDR3L (low power DDR3), Samsung DDR4 shows an overall improvement in performance in every DIMM and a performance that is more than 40 percent better at 1 DIMM per channel.A major decrease in voltage and the improved I/O power efficiency of DDR4 synchronous dynamic RAM (SDRAM) translates into significant cost savings. According to Samsung internal testing, DDR4 boasts a continuous working voltage of 1.2 V, a voltage that is 11 percent lower than the 1.35 V consumed by DDR3L. By adopting POD (Pseudo Open Drain) for data transmission, Samsung DDR4's input/output (I/O) power consumption is reduced by 50 percent compared to the previously-used SSTL (Stub Series Terminated Logic) of DDR3L. Overall, Samsung DDR4 shows a Performance/watt level more than 20 percent higher than DDR3L." 