Transfers per clock based on the memory type, and the memory width. Theoretical memory bandwidth is the product of the memory clock, the Width of the common cards range from 32 bits to 256 bits. Single data rate (SDR) which transfers one value per clock cycle. There are also other kinds of DDR like DDR2, GDDR3, and GDDR4 and they also Which means that it transfers two memory values for each memory clock cycle. The most common memory type is double data rate The memory clock is the clock rate of the memory chips.Ĭurrent (2006) memory chips have clock rates which range from about 167ġ000 MHz. The memory bandwidth is determined by the memory clock, the memory type, and This page addresses only the subject of memory bandwidth. Same token, you don't want to get a video card with a slow GPU and very high Spend a lot of time doing nothing while waiting for its slow video RAM. Memory bandwidth because the memory will be the bottleneck. There's little point in getting a video card with a very fast GPU and limited You also have to consider the drawing speed of the But there's more to video cards than just memory bandwidth. The more memory bandwidth you have, the better.Ī video card with higher memory bandwidth can draw faster and draw higher Memory bandwidth is basically the speed of the video RAM. One of the main things you need to consider when selecting a Understanding video RAM memory bandwidth The basics of memory bandwidth
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