A: Computer vraw is an image random access memory, which is a form of video memory.
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Random access memory on a graphics card is a type of dual-port memory that allows access to all hardware (including the CPU, display chip, etc.) at the same time. It is about 20% faster than EDO DRAM, but the price is also relatively high, suitable for high color depth, high resolution frequency display equipment. Display chips that use VRAM are S3, 968, S3 ViRGE\/VX, etc.
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Video memory can store the color of every pixel on the screen.
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Features: Allows access to all hardware (including central processor, display chip, etc.) at the same time.
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The main function is to output the video data of the graphics card to the digital to analog converter, which effectively reduces the work burden of the graphics display chip. Two data ports are adopted, one of which is a parallel data output entry and the other is a serial data output. Mostly used for high-end memory in advanced graphics cards.