Graphics card types
With bus development, specific graphics cards appeared on marked, so today we can find:PCI graphics cards
AGP graphics cards
PCI-E graphics cards
PCI graphics cards, today are very little in use, 'cause of relatively weak bandwidth of PCI bus, but they used very good, and may be still in use for users that use only office application, and other graphicaly low-requirement softwares. But, with appearence of "realistic" 3D games, which made first 3D objects, not 2D pictures,hardware acceleration was invented, which means 3D rendering directly through hardware not with software emulation. First cards, then called 3D accelerators, PCI bus was just about enough. When new tecnologies were found, and with speed acceleration, there was need for faster bus. Therefore AGP was developed
AGP cards usualy posses hardware acceleration, and also larger amounts of memory then PCI graphics cards, and with that, they are faster. AGP graphics cards today have bigger part of market, but AGP bus is reached its maximum, like other buses that use parallel datatransmission. Therefore it is expected that PCI Express bus, that is serial, in near future stoppes being primary and only, so AGP graphics cards today are eaven not produced, they started making only PCI-E versions.
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