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Video memory, the full name of display memory, is the memory dedicated to the graphics card. Video memory is to a graphics card what memory is to a whole computer, it is responsible for storing all kinds of data that the graphics chip needs to process. The size of the memory capacity and the level of performance directly affect the display effect of the computer.
Currently, there are several types of video memory commonly used in graphics cards.
1)sdram
SDRAM, also known as synchronous memory, can read and write data in a single clock cycle, saving waiting time. Due to its low price** and better performance, SDRAM has become a common memory for low-to-mid-range graphics cards and most motherboards. The form factor of the SDRAM used as video memory is the same as that of a chip on a memory module, and its most important feature is that the entire chip is packaged in a flat package on both sides (only with pins on both sides).
2)sgram
The Sgram is arguably a dedicated version of SDRAM, up to 8 times faster than EDO DRAM, and has graphics-enhancing features that support two of the most useful operations in graphics processing: write masks and block writes (write masks can reduce or eliminate reads and writes to memory, while block writes favor foreground or background filling).
3)ddr/ddr2/ddr3 sdram/sgram
DDR (Double Data Rate) means double rate, which can transmit data on both the rising and falling edges of the signal, and its data transmission bandwidth is equivalent to twice the running speed of the SDRAM Sgram.
4)vram(video dram)
VRAM, or **RAM, is a dual-port memory optimized for graphics applications and is commonly used in mid-to-high-end graphics cards. VRAM is tailor-made for graphics cards, and has no other purpose than to use it on graphics cards, but VRAM is expensive to manufacture, so graphics cards with this kind of memory are rare.
5)wram(window ram)
WRAM is an enhanced VRAM memory that accelerates commonly used functions such as bit block transfer and pattern filling. WRAM performance is 50% higher than VRAM, but the cost of WRAM is also higher, so the application is very limited (MGA's Millenium uses this type of memory).
6)rdram(rambus dram)�
RDRAM is primarily used for high-speed burst operation and can be accessed at up to 500MHz, while traditional memory can only be accessed at 50MHz or 75MHz. Also due to cost, there are very few graphics cards with this type of memory.
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No, graphics card memory is mainly used for large-scale 3D games, so you don't need to worry too much about this if you don't play large-scale 3D games or work like 3D design.
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