An AGP slot is a post-PCI/pre-PCIx graphic card interface bus. It was a step up from the PCI video cards, but were phased out with the PCIx standard.
Yes.
graphic card
No it cannot you will need to get a agp card or upgrade your motherbord.
Video Card
PCI, and AGP
Strictly speaking, neither. It is an integrated graphics chipset. The chipset is mapped to the AGP bus, but is inferior to almost every actual AGP card in existence. it is disabled when an AGP card is installed.
AGP = Accelerated Graphic Card
AGP is an older video card specification that had a higher bus speed than the PCI spec.
AGP is very old and crappy. PCI e is the newest graphics adapter interface.
yes, it is enough for playing games.
Several hundred video cards, based on dozens of chipsets, support the AGP bus.