TYPES OF RAM: An Overview of the Different Types of Ram

Static and Dynamic RAM and other Different Types in Computer
Photo Credit: Concise Computer Consulting

There are various types of memory (RAM). The distinctions are brought about by the memory’s purpose, its technology, and other components of computer hardware. Memory is of two types: static RAM and dynamic RAM. Random access memory (RAM) makes processing data quickly and effectively in computer memory possible. There are different types of RAM, also known as short-term memory, each with different properties and performance capabilities. 

These RAM configurations control how quickly your computer can access and store data for immediate use. With the help of this article, you will be able to choose whether to build or upgrade your computer system by learning more about the various RAM types and their features.

Types of Ram 

RAM (Random Access Memory) is a component of the computer’s main memory that the CPU can access directly. The CPU randomly accesses RAM, reading and writing data into it. RAM is volatile, which means that if there is a loss in power, it will lose data. The RAM stores the data that the CPU is processing. RAM holds the majority of the data and programs that can be changed. Computers can now manage information and find immediate solutions to issues in a virtual environment.

RAM is offered in a variety of capacities (measured in MB or GB), rates (measured in MHz or GHz), and architectures (i.e., how it physically connects to or interacts with computing systems). As computer systems (such as hardware, and motherboards) must abide by strict compatibility guidelines, these and other factors are crucial to take into account when upgrading systems with RAM. 

Static RAM

Static RAM is the official name for SRAM. This type of RAM stores data by making use of the state of a memory cell with six transistors. The primary purpose of static RAM is to serve as the CPU’s cache memory. As long as power is applied, the SRAM memory circuits can maintain the stored data. Therefore, this type of memory requires ongoing power. The use of SRAM memory modules results in the creation of cache memory. In SRAM, data is stored in memory cells with six transistors. SRAM, which is frequently non-user-replaceable, serves as the cache memory for the processor (CPU).   

SRAM, known for its quick speed and dependability, is a type of computer memory. It is faster than other RAM types because flip-flop circuits are used to maintain data. Since SRAM does not require constant refreshing, it can store data for as long as energy is available. When quick access to data is essential, it is frequently used in CPU registers and cache memory. In contrast to other RAM types, SRAM requires more money to produce.

Static RAM needs a steady stream of power to operate. The constant power means that SRAM does not need to be “refreshed” to remember the data it is storing. This explains why SRAM is referred to as “static”—data integrity requires no alteration or action, such as refreshing. SRAM, on the other hand, is a volatile memory, meaning that once the power is turned off, all the data that was stored is lost. Less power consumption and quicker access speeds are benefits of using Static RAM (in comparison to dynamic RAM). Less memory capacity and higher manufacturing costs are drawbacks of using Static RAM in comparison to Dynamic RAM. 

Benefits of SRAM

There are benefits to both SRAM and DRAM. SRAM has an access time of as little as ten nanoseconds, which makes it generally faster than DRAM. Additionally, unlike dynamic RAM, which requires frequent refreshes, static RAM does not require this. In addition, static RAM uses a constant, small current and uses less power than dynamic RAM.

Disadvantages of SRAM

SRAM has drawbacks in addition to its many advantages. SRAM typically costs more and takes up more chip. Chips with more memory have a lower memory density and are more difficult to produce. SRAM draws almost no power when idle because its power consumption is inversely proportional to the access frequency. At higher frequencies, SRAM will nevertheless use the same amount of power as DRAM.

Types of SRAM

In older computers, the three different types of SRAM modules are used to increase the system cache capacity. High speed is made possible by the SRAM, which we have already discussed. SRAM tends to be quick in part because it gives microprocessors access to memory sources besides hard drives.

SRAM has three modules:

  • Asynchronous static RAM was the first type of SRAM ever developed and is frequently used as a cheap upgrade for older devices. Memory and speed upgrades are two examples.
  • Synchronous burst static RAM: Although expensive, this type of SRAM is extremely quick.
  • Pipeline-burst static RAM SRAM: PBSRAM is the SRAM that is currently most prevalent. It is intended for subsequent access cycles to require less processing time, resulting in higher data output.

Dynamic RAM

Dynamic Random Access Memory is known by these initials. It is a type of RAM that enables you to store every bit of information in its capacitor inside of a particular integrated circuit. Modern desktop computers commonly use dynamic RAM as their main computer memory.

This kind of RAM is a volatile memory that requires frequent voltage refreshes. Otherwise, the data that is stored there is lost. Binary data is kept in DRAM by applying electric charges to capacitors. Because the capacitors’ informational reserves tend to degrade over time, they must be periodically recharged to maintain their functionality. DRAM demands a refresh period. DRAM chips are commonly used to construct the main memory.

A transistor and capacitor pair that together form a single DRAM cell is used to store data in DRAM. Although it costs less to make, DRAM is a bit slower than SRAM. DRAM makes up the majority of removable memory modules.

DRAM requires a constant “refresh” of power to function. Data loss occurs if the DRAM’s capacitors are not kept powered up by enough power. This explains why DRAM is called “dynamic” because it requires ongoing action, like refreshing, to maintain data integrity. DRAM is a volatile memory, which means that all data is lost if the power is interrupted. 

Data is kept in minuscule capacitors found inside integrated circuits by a type of computer memory known as dynamic RAM (DRAM). Contrary to Static RAM (SRAM), DRAM requires frequent refreshes to preserve data integrity as the charge stored in the capacitors slowly leaks away. DRAM, despite being slower and less dependable than SRAM and having a higher storage capacity at a lower cost, is appropriate for applications where cost-effectiveness and ability are crucial, such as personal computers.

What Is Ram in Computer 

RAM stands for random access memory in its full form. When the power supply is turned off, the data stored in this type of memory is erased. Using BIOS, it is possible to verify the data that is kept in RAM. Common names for it include the computer system’s main memory, temporary memory, cache memory, and volatile memory. 

Benefits of DRAM

Utilizing DRAM has numerous benefits. The price is possibly the most notable. In comparison to SRAM, the price is frequently much lower. Additionally, the design is fairly straightforward, and the price is helped by the fact that only one transistor is needed. The majority of computers use DRAM because it offers higher densities at a lower price.

Additionally offering high densities, a DRAM has a large data storage capacity. Furthermore, you can update and delete the memory while DRAM is active.

The Drawbacks of DRAM

DRAM has benefits and drawbacks, similar to SRAM. Compared to SRAM, DRAM has more drawbacks, including being slower. DRAM uses brief power bursts every few milliseconds. It needs to recharge, so it needs this power. This requires time, which is why DRAM is slow. DRAM typically takes 60 nanoseconds to access data, whereas SRAM can take as little as ten nanoseconds, as we discussed earlier.

DRAM has the additional drawback of requiring power. Otherwise, you will lose data. Additionally, DRAM uses more energy than SRAM.

Different Types of Ram 


Fast Page Mode Dynamic random access memory is a specific kind of RAM that waits to access the next bit of data until the previous bit has been fully read after being located by column and row. There is a 176 Mbps maximum transfer rate. Compared to other traditional DRAMs, this DRAM operates quickly. FPM DRAM was primarily used in personal computers, but since it could only support memory bus speeds of up to 66 MHz, it is no longer useful.

More modern RAM variants like SDRAM and DDR have since taken their place.

#2. SD RAM

Desktops, laptops, and servers frequently use SDRAM, also known as Synchronous Dynamic Random Access Memory. Data transfers should be timed to match the computer’s clock rate to improve performance. Regular DRAM did not support synchronized access to memory, but SDRAM does, which speeds up the system as a whole. For general computing needs, it is popular due to its affordability and compatibility with different computer architectures. 


Synchronous dynamic access memory is also SDR RAM. It has access times of 25 to 10 ns (nanoseconds) and is housed in 168-contact DIMM (dual in-line memory module) modules. They use capacitors to store data and integrated circuits (ICs). They have terminations on one of their sides that can be inserted into the motherboard’s memory slots individually.

#4. RD RAM

Rambus Inc. created RD RAM, also known as Rambus Dynamic RAM, as a type of memory technology. Compared to earlier conventional memory technologies, it was to offer faster data transfer rates. The RD RAM to accomplish this as a result of quick serial interface and an original memory architecture. Despite having a strong performance, RD RAM had a low usage period because of its higher price and limited compatibility with existing computer systems.


Double Data Rate Synchronous Dynamic Random Access Memory, also known as DDR SDRAM, is a type of computer memory that is frequently used in servers, laptops, and desktop computers. As information can now be transmitted twice per clock cycle, data transfer speed is increased. This enables it to effectively double the rate of conventional SDRAM by transferring data on both the rising and falling edges of the system clock. DDR SDRAM is a popular option for contemporary computing systems because it provides greater performance and efficiency. DDR SD RAM is classified into:

#1. DDR1

During the early 2000s, DDR1, also known as DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory), was a popular memory technology. By doubling the data transfer rate, it provided better performance than SDRAM, its forerunner. DDR1 offered increased bandwidth and quicker clock rates, enabling more secure data access and enhanced multitasking. DDR1 has been largely phased out in favor of faster and more effective RAM technologies, but it is still considered dated in comparison to more recent DDR iterations.

#2. DDR2

Computer systems frequently use DDR2 (Double Data Rate 2), a type of synchronous dynamic random access memory (SDRAM). It is a more advanced form of DDR that provides faster performance and wider bandwidth. Data transfer rates are increased by DDR2’s higher operating clock speeds. It differs from its predecessor in that it consumes less power and has higher memory densities. Since the notched pins on DDR2 modules are different from those on DDR, they cannot be used together. 

#3. DDR3

Synchronous dynamic random-access memory (SDRAM) called DDR3 (Double Data Rate 3) is frequently utilized in computers. Compared to DDR2, which it replaces, it offers faster data transfer rates. DDR3 performs two data transfers per clock cycle, enabling faster data transfer between the RAM and the processor. By offering more bandwidth and more memory, this technology improves system performance as a whole. DDR3 is still a popular choice for many computing applications because of its balance of cost and performance.

#4. DDR4

RAM that is frequently used in contemporary computers is called DDR4, or Double Data Rate 4. It is a more advanced variation of DDR3, its forerunner. Performance is increased overall thanks to DDR4’s faster data transfer rates and larger memory capacities. Its higher operating frequencies makes faster access to data possible. For demanding applications like gaming, video editing, and multitasking, DDR4 offers an effective and dependable memory solution thanks to its lower power consumption and increased bandwidth.

#5. DDR5

Modern RAM (Random Access Memory) for computers is called DDR5. Comparatively speaking to its predecessors, it offers faster data transfer rates and performance. DDR5 enables quicker data access, allowing for more fluid multitasking and better gaming experiences thanks to its higher bandwidth and increased memory capacity. Energy efficiency is improved by its sophisticated power management features. In-memory technology has significantly improved with DDR5, which offers faster and more effective performance for current computing requirements


To enable on-chip cache memory, CDRAM, also known as “Cache DRAM,” was specifically created. It serves as a quick buffer for the primary dynamic RAM.

#7. VRAM

VRAM is a type of RAM for video adapters. Since these chips have two ports, video data can be written to them simultaneously with the video adapter reading memory to update the monitor’s current display. VRAM

The term “VRAM” refers to a special kind of memory used in computers and other devices exclusively for the processing of graphics. Between a graphics card and the display, it caches the visual data required to render images and videos on the screen. The fast handling of large amounts of data by VRAM enables fluid and seamless graphics performance. To ensure vivid visuals while reducing the load on the main system memory, true nature, and high-speed access are crucial for demanding tasks like gaming and multimedia applications.   


Asynchronous DRAM is the most fundamental type of DRAM, and it is capable of connecting to a variety of connections including power, address inputs, and bidirectional data lines. All memory devices’ timing is asynchronously regulated, and the memory controller circuit produces useful control signals to do so.


The term “Graphics Double Data Rate Synchronous Dynamic RAM” (GDDR SDRAM) refers to memory specifically for graphics processing units (GPUs). Users can play video games in high definition thanks to GDDR. Similar to DDR SDRAM, GDDR has its own growing family of high-performance memory, including GDDR2 SDRAM, GDDR3 SDRAM, GDDR4 SDRAM, and GDDR5 SDRAM.

#10. EDO RAM

In the 1990s, computer systems frequently used dynamic RAM called EDO RAM (Extended Data Output Random Access Memory). Data can now be accessed more quickly with EDO RAM compared to Fast Page Mode (FPM) RAM without having to wait for the previous data transfer to finish. A function known as “pipeline burst mode” was added to accomplish this. During its time, EDO RAM was widely used for applications like multimedia and gaming because it improved performance for tasks requiring frequent access to sequential data.

#11. Flash Memory

An example of non-volatile computer storage is flash memory, which can continue to store data even when you turn off the power. You can find them in memory cards for gadgets like cameras and smartphones as well as solid-state drives (SSDs). Flash memory is more resilient and shock-resistant because it lacks moving parts, unlike conventional hard disk drives. 

The “floating gate transistors” used to store the data are electronic cells. Due to the transistors’ electrical programming and erasure capabilities, which allow for quick read and write operations, flash memory is a crucial part of portable and high-speed data storage.

#12. Cache DRAM

Dynamic random access memory (DRAM), also referred to as CDRAM or cache DRAM, combines the rapid cache memory speed with the large storage capacity of conventional DRAM. It acts as a buffer between the processor and the main memory, keeping frequently accessed data for faster access times. By minimizing the amount of time the processor must wait to retrieve data from the slower main memory, CDRAM optimizes performance. Specialized algorithms are used to decide which data to cache. This increases the system’s general responsiveness and effectiveness when handling data-intensive tasks.

Static Ram vs Dynamic Ram 

Static RAM and dynamic RAM are both varieties of volatile memory, meaning a power outage will cause them to lose all of their data. Despite this similarity, they differ in important ways.

However, static RAM is faster than dynamic RAM despite being more expensive and consume more power. Due to the various architectures, SRAM typically performs better and uses less power, especially when it is not in use. But it costs more and has less data storage capacity than DRAM.  

SRAM uses transistors to store information. Because SRAM does not use capacitors, there is no need for refresh. Capacitors use DRAM to store data, and they must periodically have their contents updated. Due to the extensive use of transistors, SRAM is complicated to build. DRAM, on the other hand, is straightforward to design and implement. 

Dynamic RAM uses more energy than static RAM does. SRAM can transfer data more quickly. Data transfer rates for DRAM are lower. Applications requiring high performance often use SRAM while general-purpose applications use DRAM 

SRAM offers faster read/write data speeds and data life in SRAM is very long. But, DRAM offers slower read/write speeds for data and DRAM has short data life. 

Static RAMs are cache memory in pcs and other computing equipment, while Systems with computers use dynamic RAMs as their main memory.

The primary distinction between SRAM and DRAM is the use of flip-flops in SRAM as opposed to transistor- and capacitor-based circuits in DRAM for data storage. Computers use SRAM in specialized hardware, such as the cache memory in computers. The majority of personal computers, however, use DRAM as their primary memory.

Which is the Best RAM Type?

There is not due to the wide range of uses for different types of RAM. The best RAM for your PC will depend on a variety of important factors, such as what you plan to do with it and how you will use it in conjunction with other components. RAM might not seem exciting when purchasing a new computer compared to other parts. But it affects the system’s performance most, after the processor and graphics card. 

Is DDR4 better than DDR5? 

DDR5 memory kits differ from DDR4 memory kits in that they have a faster base speed, support larger DIMM modules (also known as RAM sticks), and use less power while maintaining the same performance standards as the previous generation. DDR4 still has a few significant benefits, though, including better stability and overall lower latency.

What is the Most Common Type of RAM? 

Currently, DDR-SDRAM, also known as double data rate synchronized dynamic random-access memory, is the most common type of RAM. Additionally, there are several iterations, such as DDR2, DDR3, DDR4, and even DDR5.

How Can I Identify RAM Type?

Once you are aware of the speeds you need to check for, determining the type of RAM is very simple. Select Task Manager and go to the Performance tab. Look at the very top right after selecting memory in the left-hand column. It will inform you of the type and quantity of your RAM. By performing right-clicking on the Windows taskbar and choosing Task Manager, you can access Task Manager. Select the CPU view when you open the performance tab; select the Memory view from the left navigation panel. You can view your RAM speed and other information by selecting Memory. 

How Do I Know What Kind of RAM I Need?

In the Windows Start menu, look for System Information to launch the application. You can find your Processor under System Summary. Using this information, you can look up RAM that is compatible with your specific processor on the manufacturer’s website. You can use both a RAM compatibility checker and a visual examination of the motherboard slots to inspect your motherboard. 

Which RAM is the Fastest?

Most of the time, speed is better. Compared to DDR4, DDR5 RAM is typically much faster and offers a wide range of frequency options. DDR5 is generally up to 50% faster than DDR4 at its maximum data rate. DDR5 easily outperforms the fastest DDR4 RAM in terms of raw performance. The fastest memory technology available is DDR5, which has theoretical speeds up to 100 percent faster than DDR4.  

 Is 64 GB RAM Overkill?

64 GB of RAM is simply too much if you will only use your PC only for gaming and some other common, everyday tasks. In the end, your workload will determine how much RAM you require. 64GB is overkill for gamers; 16GB will suffice for soon-to-be-released new titles. 64GB of RAM is excessive for gaming, as you can play most games with 8–16GB of RAM without any issues.

How Much RAM Do I Need?

Depending on how you plan to use your computer, you may need more or less RAM. It does not take much RAM to watch YouTube videos or browse the internet. While rendering 4K videos or playing contemporary video games, you will need a good amount of memory. For everyday computing, most people do not require a ton of RAM, but some do.

Typically, we recommend 8GB of RAM for web browsing and light computing tasks, 16GB for spreadsheets and other office software, and at least 32GB for gamers and multimedia creators. Use this as a guideline, but keep in mind that your needs will vary depending on how you use your computer. 

Is 16GB RAM enough?

Typically, we advise 8GB of RAM for light web browsing and computer use, 16GB for spreadsheets and other office applications, and at least 32GB for gamers and multimedia creators. RAM requirements vary depending on how you use your computer. The sweet spot’ for RAM capacity is 16GB. It gives you a respectable amount of memory and enables smooth gaming and intensive computer program work. 16 Gb may be the ideal amount of memory for a serious gaming setup. 16GB of RAM could provide hours of entertainment when paired with an AMD or NVIDIA graphics card. 


In conclusion, RAM (Random Access Memory) is a key component in determining how well a computer system performs. How quickly a computer access and processes data depends on the RAM’s speed, which also has an impact on the system’s overall performance. In particular, when performing resource-intensive tasks, faster RAM speeds reduce latency and enhance responsiveness. For other components, such as the processor and storage devices, to keep up with the faster data transfer rates, it is essential to maintain a balanced setup. To maximize system performance, selecting RAM with the right rate is crucial when thinking about system upgrades or building a new computer.

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