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What is DDR memory and GDDR memory? What is difference?

2023-03-16

Many users of installed computers often confuse DDR memory with GDDR memory. So why are they good? What's difference between two? Next, I will share various guides on basic knowledge about DDR memory and GDDR memory with you.

What is DDR memory? What is DDR memory and GDDR memory? What is difference?

Memory is one of important basic components of a computer, and memory is bridge that connects other hardware to CPU. All programs on a computer run in memory, so memory performance has a big impact on computer.

Professionally speaking, memory is also called internal memory, which is made up of memory chips, circuit boards, golden fingers, and other parts. The function of memory is to temporarily store computational data in CPU and exchange data with external memory such as a hard disk. While computer is running, CPU will transfer data that needs to be calculated to memory for calculation. After calculation is completed, CPU will send result. The performance of memory also determines stable operation of computer.

DDR4 is fourth generation memory, and DDR3 is third generation memory, and in future there are DDR2 and DDR memory, which means that current computer memory has reached fourth generation. Simply put, DDR4 is next generation version of DDR3 with higher speed and lower power consumption.

What is GDDR memory? What is DDR memory and GDDR memory? What is difference?

GDDR is short for "Graphics Double Data Rate DRAM". It is used for high speed DDR graphics cards. GDDR is a high-performance DDR memory specification specifically designed for high-end graphics cards. it is different from standard DDR memory on market, different from ordinary DDR memory, and cannot be shared. It generally has a higher clock speed and generates less heat than conventional DDR memory used in main memory, so it is more suitable to match high performance display chips.

High performance DRAM designed for graphics cards has two main features. One of them is ability to address with high density, that is, capacity of particles must be high in order to meet requirements of video cards for amount of memory and design of video card. High-density graphics memory addressing is only half of design problem, other half is performance. Video memory must provide high transfer rates. Existing GDDR video memory can provide data transfer rates in excess of 1GT/s.

What is difference between GDDR memory and DDR memory?

Actually, GDDR is based on DDR, and GDDR2 is based on DDR2, and performance of GDDR3 is similar to DDR3 in frequency. Many users think that GDDR3 is a version of DDR3, which is a big misunderstanding.

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