Types of RAM:-

 

There  are  two  main  types  of      RAM

(1) Dynamic   RAM. (DRAM)  

(2)Static RAM (SRAM).

SRAM VS DRAM

SRAM	DRAM
SRAM has lower access time, so it is faster compared to DRAM.	DRAM has higher access time, so it is slower than SRAM.
SRAM is costlier than DRAM.	DRAM costs less compared to SRAM.
SRAM requires a constant power supply, which means this type of memory which consumes more power.	DRAM offers reduced power consumption because the information is stored in the capacitor.
It is a complex internal circuitry, and it offers less storage capacity is available compared to the same physical size of a DRAM memory chip.	It is the small internal circuitry in the one-bit memory cell of DRAM. The large storage capacity is available.
SRAM has a low Packaging density. History of RAM:- Type of RAM Year Invented FPM-(Fast page mode RAM)- 1990 EDO RAM (Extended data operations read-only memory) 1994 SDRAM (Single dynamic RAM) 1996 RDRAM (Rambus RAM) 1998 DDR (Double Data Rate) 2000 DDR2 2003 DDR3 2007 DDR4 Other Important Types of RAM FPM DRAM FPM DRAM Fast Page Mode Dynamic Random Access Memory is a type of RAM that waits through the entire process of locating a bit of data by column and row and then reading the bit before it begins on the next bit. Max transfer rate is around 176 Mbps. SDR RAM SDR RAM SDR RAM is a full form of synchronous dynamic access memory. It has access times between 25 and 10 ns(nanosecond), and they are in DIMM (dual in-line memory module) modules of 168 contacts. They store data using capacitors using IC's (Integrated Circuits). On one of its sides, they have terminations, which can be inserted inside of the individual slots for the Motherboard's memory. RD RAM RD RAM Rambus Dynamic Random Access Memory is a full form of RDRAM. This type of RAM chips works in parallel, which allows you to achieve a data rate of 800 MHz or 1,600 Mbps. It generates much more heat as they operate at such high speeds. VRAM (Video): VRAM RAM optimized for video adapters is called VRAM. These chips have two ports so that video data can be written to chips at the same time the video adapter regularly reads the memory to refresh the monitor's current display. EDO RAM EDO RAM EDO DRAM is an abbreviation of Extended Data Output Random Access Memory. It doesn't wait for the completion of the processing of the first bit before continuing to the next one. As soon as the address of the first bit is located, EDO DRAM begins looking for the next bit. Flash Memory : Flash Memory Flash memory is an electrically erasable and programmable permanent type of memory. It uses a one-transistor memory to store a bit. It offers low power consumption and helps to reduce the cost. It is mainly used in digital cameras, MP3 players, etc. What are the types of RAM? Static RAM (SRAM) Dynamic RAM (DRAM) Synchronous Dynamic RAM (SDRAM) Single Data Rate Synchronous Dynamic RAM (SDR SDRAM) Double Data Rate Synchronous Dynamic RAM (DDR SDRAM, DDR2, DDR3, DDR4) Graphics Double Data Rate Synchronous Dynamic RAM (GDDR SDRAM, GDDR2, GDDR3, GDDR4, GDDR5) Flash Memory Uses of RAM Here, are important uses of RAM: RAM is utilized in the computer as a scratchpad, buffer, and main memory. It offers a fast operating speed. It is also popular for its compatibility It offers low power dissipation What is the difference between DDR ddr2 ddr3 and ddr4 RAM? DDR2 memory is at the same internal clock speed (133~200MHz) as DDR, but the transfer rate of DDR2 can reach 533~800 MT/s with the improved I/O bus signal. ... DDR4 SDRAM provides the lower operating voltage (1.2V) and higher transfer rate. The transfer rate of DDR4 is 2133~3200 MT/s. Which is the latest DDR version? The evolution of DDR has exponential growth with applications requiring more memory, so the bandwidth increased multiple folds from DDR to DDR4 from 1GB to 16GB. In 2019, the latest version of DDR i.e. DDR5 is expected to be launched. How many DDR are there? They are also available in different speeds, so for example DDR memory modules are available in DDR-200, DDR-266, DDR-333, and DDR-400. DDR-200 (also called PC1600) runs at 200 MT/s (million transfers per second), or 1600 MB/s (megabytes per second). Which DDR RAM is best? Best RAM You Can Buy Today Patriot Viper Steel DDR4-4400 (2x 8GB) ...Patriot Viper RGB DDR4-3600 (2x 8GB) ...Patriot Viper 4 DDR4-3400 (2x 8GB) ...Corsair Vengeance RGB Pro DDR4-3200 (4x 8GB) ...Patriot Viper Steel DDR4-3200 (2x 16GB) ...HyperX Predator RGB DDR4-2933 (4x 8GB) ...Corsair Vengeance LPX DDR4-2666 (2x 8GB Can I replace ddr3 with ddr4? DDR4 RAM is not backwards compatible withDDR3 motherboards and vice versa. The notch has been moved to prevent accidental insertion of the wrong type of memory. You will not be able to change to DDR-4 . Which is better RAM ddr3 or ddr4? DDR4 RAM looks faster on paper A higher transfer rate means you have more bandwidth and will thus be able to transfer more data at once. DDR4 RAM can transfer data at a rate between 2133MT/s and 4266MT/s, whileDDR3 RAM can only hit transfer data rates between 800MT/s and 2133MT/s     Which RAM type is best? Corsair Vengeance LED Corsair is one of the most trusted names when it comes to the best RAM on the market. Its Vengeance series, especially, has something for everyone with its LED DDR4 offerings. What type of RAM is fastest? SDRAM The idea is that most of the time the data needed by the CPU will be in sequence. SDRAM is about five percent faster than EDO RAM and is the most common form in desktops today. Maximum transfer rate to L2 cache is approximately 528 MBps. How do I identify my RAM type? 2A: Use the memory tab. It will show the frequency, that number needs to be doubled and then you can find the right ram on our DDR2 or DDR3 or DDR4 pages. When you are on those pages, just select the speed box and the type of system (desktop or notebook) and it will display all available sizes Performance Comparison of RAM Types Standard Time in Market Internal Rate Bus Clock(MHZ) Perfectch Data rate(MT/s) Tranfer rate(GB/s) Voltage SDRAM 1993 100-166 100-166 1n 100-166 0.8-1.3 3.3 DDR 2000 133-200 133-200 2n 266-400 2.1-3.2 2.5/2.6 DDR2 SDRAM 2003 133-200 266-400 4n 533-800 4.2-6.4 1.8 DDR3 2007 133-200 533-800. 8n 1066-1600 8.5-14.9 1.35/1.5 DDR 4    2014 133-200 10s66-1600 8n 2133-3200 17-21.3 1 2012	RAM has a high packaging density.