What is SDRAM? What is DRAM? And what is the difference between them? If you don’t know, then this post is what you need. So read this post to learn some information about SDRAM vs DRAM. If you want to know other types of RAM, go to the MiniTool website.

As you know, there are different types of RAM in the market such as SRAM and DRAM. And there are several types of DRAM, such as SDRAM and VRAM. This post is mainly talking about SDRAM vs DRAM.

What Is DRAM?

Before we talking about DRAM vs SDRAM, let’s get some information about what DRAM is. DRAM can be used for the data or program code required by the computer processor to run. DRAM is the most common type of computer memory and is widely used in digital electronic products that require low-cost and large-capacity computer memory. Because data will be quickly lost after a power failure, DRAM belongs to the volatile memory (AND Volatile memory relative).

To learn more information about DRAM, read this post - Introduction to DRAM Memory (Dynamic Random-Access Memory).

What Is SDRAM?

Then what is SDRAM? It is short for synchronous dynamic random access memory and it has a synchronous interface. Through this interface, the change of the control input can be recognized after the rising edge of its clock input.

To learn more information about SDRAM, read this post - What Is SDRAM (Synchronous Dynamic Random-Access Memory)?

SDRAM VS DRAM: Difference Between SDRAM and DRAM

What’s the difference between SDRAM and DRAM? This part we will talk about SDRAM vs DRAM from 3 aspects, so keep reading to know the detailed information.


When talking about SDRAM vs DRAM, history needs to be mentioned. Dr. Robert Dennard invented DRAM while working for IBM in 1967 and obtained a patent for this breakthrough technology in 1968. Danard’s invention is called a DRAM memory cell, which uses a single transistor to read from and write to capacitors that store data.

Dennard's single-transistor memory cell technology has produced many innovations, including SDRAM synchronized with the computer clock, which improves the efficiency of reading from or writing to random access memory.


The previous memory storage form was as large as the room and required constant cooling. However, with the advancement of memory storage technology, these devices have become smaller and cheaper. The DRAM invented by Dr. 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. Once the DRAM receives the command from the user’s interface, it immediately runs asynchronously with the computer’s clock to send the command, instead of waiting like the SDRAM to synchronize with the computer’s clock.


SDRAM is synchronized with the computer’s clock to enable it to send instructions more efficiently by joining the pipeline of other instructions being processed by the computer.

The pipelining processing of information in the computer allows it to receive another command before completing the processing of the previous command. This allows SDRAM to run at higher speeds, making it the most popular form of RAM on computers.

Bottom Line

SDRAM vs DRAM? What’s the difference between them? After reading this post, you should clearly know that. If you have any better advice, leave a comment below and we’ll reply to you as soon.

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