Introduction to SRAM vs DRAM

Volatile memory is essential for storing and accessing data quickly and efficiently.

The two types of volatile memory are SRAM (Static Random Access Memory) and DRAM (Dynamic Random Access Memory).

Both SRAM and DRAM serve as primary components of computer memory systems, but they differ significantly in their structure, operation, and characteristics.

How SRAM Works

SRAM uses flip-flops to store each bit of data. Flop flops store data purely within the electrical circuit itself, It requires six transistors to store each bit, which makes it more expensive in terms of space than DRAM

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How DRAM works

Unlike SRAM, DRAM requires periodic refreshing to maintain the stored data, as it uses a capacitor to store each bit of data. This refreshing process introduces some latency, making DRAM slower than SRAM. 

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SRAM vs DRAM: Speed

SRAM

SRAM is faster than DRAM because it doesn't need to be refreshed continually to maintain data integrity.

DRAM

DRAM is slower than SRAM because it needs to be refreshed periodically (every few milliseconds) to prevent data loss.

SRAM vs DRAM: Power Consumption

SRAM

SRAM consumes more power than DRAM because it requires continuous power to maintain data integrity.

DRAM

DRAM consumes less power compared to SRAM because it only requires power during read and write operations, not for maintaining data.

SRAM vs DRAM: Density

SRAM

SRAM has lower storage density compared to DRAM because it requires more transistors per bit.

DRAM

DRAM has higher storage density compared to SRAM because it requires fewer components per bit.

SRAM vs DRAM: Cost

SRAM

SRAM is more expensive than DRAM due to its higher complexity and lower storage density.

DRAM

DRAM is less expensive than SRAM due to its simpler structure and higher storage density.

SRAM vs DRAM: Applications

SRAM

SRAM is commonly used in cache memory and other applications where speed and low latency are crucial, such as CPU caches.

DRAM

DRAM is used as main memory (RAM) in computers, smartphones, and other devices due to its higher storage density and lower cost.