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Window RAM (WRAM)
Window RAM or WRAM is a modification of regular VRAM that both improves performance and reduces cost on a bit-for-bit basis. Designed specifically for use in graphics cards, WRAM is also dual-ported but has about 25% more bandwidth than VRAM, and also incorporates additional features to allow for higher performance memory transfers for commonly used graphical operations such as text drawing and block fills. Furthermore, WRAM is less expensive than VRAM to manufacture (although still more expensive than DRAM).
WRAM is suitable for use in high-end graphics cards and was first made popular by Matrox's Millennium series. A card with WRAM and a sufficiently fast RAMDAC can handle even very high resolutions (1600x1200) at true color.
Note: Window RAM has nothing
to do with Microsoft Windows.