The extended standard whichraisesthe speed of the AGP bus whichis the videocard and the private bus between main memory in 4 times. Maximum data ratereaches to1.066GB/s timing of data sending and receiving by making 2 times from AGP 2x furthermore.

Veryhigh speedtransfer being possible between the motherboard and the video card, it is possible even withthe advancedvideo card which presently is sold to utilize the efficiency of the card sufficiently.

But, as for AGP 4x because of relatively new standard,there aretimes whencorrespondence of the motherboard and the video card is imperfect, when operation becomes unstable, they are.Whenonlyone sideof the motherboard and the video card it does not correspond to AGP 4x,the subordinate standard such a sAGP 2x and AGP 1x is used.