Different Types of RAM Explained |

Different Types of RAM Explained |

Different Types of RAM Explained

Different Types of RAM (Random Access Memory) Explained

What is RAM?

Different Types of RAM (Random Access Memory) Explained – In this paragraph Different Types of RAM Explained. The full form of RAM is Random Access Memory. This gives the computer the virtual space needed to manage information and solve problems. 

RAM (random access memory) is the hardware in a computing device where the operating system (OS), application program. And data in current use are kept so that they can be quickly accessed by the device’s processor. RAM is the main memory in a computer, and it is much faster to read and write. Than other types of storage such as hard disk drives (HDDs), solid-state drives (SSDs) or optical drives. Learn More about New Upcoming Laptop 2020.

Types of RAM

Different Types of RAM Explained

There are two main types of RAM is

  • Static RAM
  • Dynamic RAM

1. Static RAM

The advantages of using SRAM (vs. DRAM) are low power consumption and fast speed. The disadvantages of using SRAM (vs. DRAM) are low memory capacity and high cost of manufacturing. Due to these characteristics, SRAM is commonly used:

  • CPU cache
  • Hard drive/buffer cache
  • Digital-to-analog converters (DACs) on video cards

2. Dynamic RAM

DRAM stands for Dynamic Random Access Memory. Dynamic RAM stores data using a transistor and capacitor pair, forming a DRAM cell. DRAM production is less expensive. But slightly slower than SRAM. Most users’ replaceable memory modules are DRAM. The DRAM is commonly used:

  • System memory
  • Video graphics memory

[Related Content: Laptop Buying Guide

Other Different Types of RAM Explained

  • Synchronous Dynamic RAM (SDRAM)

SDR RAM is a complete form of synchronous dynamic access memory. It has access times between 25 and 10 ns (nanoseconds), and they are DIMM (dual in-line memory module) modules of 168 contacts.

They store data using capacitors using an IC (Integrated Circuit). On one side of it, they have terminations. Which can be inserted inside separate slots for the memory of the motherboard.

  • FPM (First Page Mode) DRAM

Fast Page Mode Dynamic Random Access Memory is a type of RAM that goes through the entire process of tracing a bit of data by columns and rows. And then reads the bit before starting on the next bit. The max transfer rate is around 176 Mbps.

  • Double Data Rate Synchronous Dynamic RAM (DDR SDRAM)

DDR SDRAM operates at a low standard voltage (3.3 V to 2.5 V), preventing backward compatibility with SDR SDRAM. It is similar to SDRAM. The only difference between the two is that it has a higher bandwidth, which provides greater speed. This is the maximum transfer rate to L2 cache which is approximately 1,064 Mbps.

  • RD (Rambus Dynamic) RAM

RAMBUS Dynamic Random Access Memory is a complete form of RDRAM. These types of RAM chips operate in parallel, which allows you to achieve a data rate of 800 MHz or 1,600 Mbps. It produces a lot of heat because they work at such a high speed.

  • Single Data Rate Synchronous Dynamic RAM (SDR SDRAM)

One single data rate ‘indicates how memory reads and writes one instruction per clock cycle. This labeling helps clarify the comparison between SDR SDRAM and DDR SDRAM:

DDR SDRAM is basically the development of the second generation of SDR SDRAM


EDO DRAM is an abbreviation for extended data output random access memory. It does not wait for the processing of the first bit to be completed before continuing to the next one. As soon as the address of the first bit is located, EDO DRAM starts searching for the next bit.

  • Flash Memory

Flash memory is a type of non-volatile storage medium that retains all data after power is cut off. It uses one-transistor memory to store one. This provides low power consumption and helps reduce costs. It is mainly used in digital cameras, MP3 players, etc. 

  • USB flash drives
  • Printers
  • Portable media players
  • Memory cards
  • Small electronics/toys
  • PDAs

RAM Speed

Different Types of RAM Explained

The numbers appearing after the “DDR” and the generation indicator are the data transfer rates per second of the module. Because the double data rate transfers data to both rising and falling edges of the clock cycle, the DDR3-800 is measured using 400 clock cycles on a 1066 MHz input/output clock. Please note that hertz is a measurement of the cycle per second, not a measurement of cycle speed.


  • RAM allows the computer to quickly read data to run applications. The ROM stores all the applications needed to initially boot the computer. It allows read-only.
  • The physical size of the RAM chip is larger than the ROM chip. The physical size of the ROM chip is smaller than the RAM chip of the same storage capacity.
  • The price of RAM is quite high. The price of ROM is comparatively low.
  • The access speed of RAM is faster. Access has a slower speed than RAM. Therefore, ROM cannot increase processor speed. RAM speed is fast.
  • The RAM chip is in rectangular form and is mounted on the motherboard of the computer. ROM is a type of storage medium that permanently stores data on personal computers and other electronic devices.


  • The full form of RAM is Random Access Memory.
  • There are two types of the main RAM. 1. Static RAM 2. Dynamic RAM
  • Static RAM is called SRAM. In this RAM data is store using the state of a six transistor memory cell. 
  • DRAM stands for Dynamic Random Access Memory. This is a type of RAM that allows you to store each bit of data in a separate capacitor.
  • FPM DRAM is a full form of Fast Page Mode Dynamic Random Access Memory.
  • Rambus Dynamic Random Access Memory is an extended form of an RDRAM.
  • Flash memory is an electrically erasable and programmable permanent type of memory.
  • The full form of DDR RAM is Double Data Rate.
  • SRAM has lower access time, so it is faster compared to DRAM.


If you want to upgrade your computer’s memory or build your own computer, you need to make sure that the memory is compatible with other components of your computer. You should choose the right memory technology before looking at speed or any other features.

[Related Content: Best Gaming Laptop 2020


Next PostRead more articles

Leave a Reply