Friday, September 30, 2022

SRAM vs DRAM: Key Differences You Must Know

SRAM vs DRAM how do they fare against each other? Any idea?

What is RAM? RAM is where all the data is stored on your computer, laptop, and smartphone. They have two prime variants, SRAM and DRAM. Let’s have a look at both in detail and understand what they are, their features, and their pros and cons. The idea is to help you determine the difference between SRAM and DRAM and choose the option suiting your requirements.

Difference between SRAM and DRAM

What is SRAM?

What is SRAMWondering what are the full forms of SRAM and RAM? Well, SRAM (Static Random Access Memory) is a basic form of RAM (Random Access Memory), which aids in the storage of information. As the name indicates, the data is stored statically. Static RAM may maintain all data in a static state until the power source is switched off. Thus, it may be also referred to as volatile memory.

The 6 transistor memory cells are used to store data in this RAM variant. SRAM is quicker and more power-efficient than other RAM types. The L3 and L2 cache units are the areas where SRAM is applied in the CPU. Any computing device’s processor and primary memory are sandwiched between SRAM. The data in SRAM is encoded in the transistor’s flip-flop. The memory cell in a flip-flop is made up of 4 to 6 transistors, and the circuits don’t require to be reset regularly.

Features of SRAM

If you are keen to get the gist of Dynamic RAM vs Static RAM, knowing the features of SRAM is key.

  1. The modules in SRAM are simple, making them easily accessible.
  2. The power consumption of SRAM is low.
  3. The density of SRAM is rare and low.
  4. Being an on-chip memory, SRAM is fast in processing data.
  5. The storage capacity is between 1-16MB, which is relatively low.

Advantages of SRAM

Understanding the advantages of SRAM is key to understanding the difference between DRAM and SRAM. The advantages of SRAM are:

  1. SRAM is faster in performing tasks.
  2. It can work even when the power supply is low.
  3. It can process data at a fast speed.

Disadvantages of SRAM

The disadvantages of SRAM are

  1. It comes at an enormous cost.
  2. It is unstable in storing data. A lack of power supply will disrupt all your data.
  3. Storage capacity is low.
  4. The design is complex.

What is DRAM?

What is DRAMDRAM is the abbreviated form of “Dynamic Random Access Memory”. You can call DRAM a type of memory to access data for a short period, which is in milliseconds. It is continuously updated by accessing its data. DRAM finds refuge in your computer’s motherboard. It has 1GB to 2GB capacity on smartphones and tablets, while on desktops and computers, it has about 4GB to 16GB capacity.

DRAM uses capacitors to record data in bits. It is the most accurate method to store data since the amount of space required for storing data is smaller than SRAM. That’s a key difference between SRAM vs DRAM. Also, the DRAM has a high power consumption as the capacitors need to be updated so that they can keep charging as the capacitors have leakage in power.

Features of DRAM

The features of DRAM can be highlighted as follows:

  1. DRAMs are used for storing main data.
  2. Capacitors act as storage houses for DRAMs.
  3. It houses itself on the motherboard of the computer.
  4. The density of a DRAM is high.
  5. It works on a higher power consumption since the capacitors leak charge.

Advantages of DRAM

The advantages of DRAM can be highlighted as:

  1. When compared to SRAM, it is less expensive.
  2. It has a larger capacity for storing data.
  3. It has a relatively simpler structure.
  4. It is not necessary to update the memory contents.
  5. You don’t have to update the memory content in DRAM.

Disadvantages of DRAM

The DRAM has the following cons. Again, you need to know it to know how Static RAM vs Dynamic RAM fare against each other.

  1. DRAMs are quite slow.
  2. The power consumption is high.

DRAM vs SRAM: Key Points to Remember

The differences between DRAM and SRAM are as follows:

  1. The access speed time of SRAM is lower than that of DRAM.
  2. SRAM has a lower density while DRAM has a higher density.
  3. SRAMs use transistors to store data while DRAMs use capacitors for storage.
  4. SRAMs have a small storage capacity of about 1MB to 16MB while in the case of DRAMs, it is 1GB to 16GB.
  5. SRAMs can be found on processors of computers while DRAMs are found on the motherboard of the computer.
  6. The modules of SRAMs are simple while DRAMs have a complex type.
  7. SRAMs have a low power consumption while DRAMs have a high power consumption.
  8. SRAMs are costlier as compared to DRAMs.

SRAM vs DRAM: Head-to-Head Comparison

Here’s the side-by-side comparison between Static RAM and Dynamic RAM:

Parameters SRAM DRAM
Access time Lower Higher
Density Lower Higher
Data Storage In Transistors In Capacitors
Capacity 1-16MB 1-16GB
Memory position In processors In the motherboard
Simplicity Modules are simple Modules are complex
Power consumption Lower Higher
Cost Very high Low


What is SRAM, and What is DRAM? By now, we believe you know it. After all, both SRAM and DRAM have been thoroughly studied along with their features. We hope it must be clear to you how both RAMs differ from one another. When it comes to SRAM vs DRAM, it all boils down to your unique requirements. Factor in your needs and choose accordingly.

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Mamoor Ahmad
Mamoor Ahmad
My name is Mamoor Ahmad, and I graduated as a Mechanical Engineer. My passion for researching and writing about technological breakthroughs, tourist destinations, traveling, and new innovations allows me to provide enterprises, websites, and startups with the boost they need to grow their business.

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