Why sdram is faster than dram

The information stored in this type of memory is lost when the power supply to the PC or laptop is switched off. It is generally known as the main memory or temporary memory or cache memory or volatile memory of the computer system. SRAM is a type of semiconductor memory that uses Bistable latching circuitry to store each bit.

In this type of RAM, data is stored using the six transistor memory cell. It also consumes less power. It is a type of RAM which allows you to stores each bit of data in a separate capacitor within a particular integrated circuit. It is a standard computer memory of any modern desktop computer. Dennard made a huge leap in making computer technology smaller and cheaper, and therefore easier for ordinary consumers to use.

The dynamic random access memory DRAM uses a transistor to store data on a capacitor, but unless the capacitor is regularly recharged, the capacitor will lose data due to loss of charge.

The recharging of the capacitor is the reason for using the word dynamic in dynamic random access memory. Once the capacitor no longer receives a charge, the data is lost. The pipelining processing of information in the computer allows it to receive another command before completing the processing of the previous command. Since the charge on a capacitor decays when a voltage is removed, DRAM must be supplied with a voltage to retain memory and is thus volatile.

Due to capacitor leakage, DRAM needs to be refreshed often. SRAM does not use capacitors. SRAM uses several transistors in a cross-coupled flip-flop configuration and does not have the leakage issue and does not need to be refreshed. Figure 3. SRAM cell with six transistors. Credit: Inductiveload [Public domain], via Wikimedia Commons. DRAM uses a different process than SRAM, so discussing size is an apples-to-oranges comparison in some respects, depending upon the optimization goal.

SRAM is faster and typically used for cache, DRAM is less expensive and has a higher density and has a primary use as main processor memory.