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目前,我们使用的显卡主要有PCI和AGP两种接口,PCI接口是一种总线接口,它以1/2或1/3的系统总线频率工作(通常为33MHz),如果要在处理图像数据的同时处理其他数据,那么流经PCI总线的全部数据就必须分别进行处理,当传输的数据量比较大时,这样势必存在一定的数据滞留现象,系统的性能就会受到很大的影响。AGP接口就是为了解决这个问题而设计的,它是一种专用的显示接口(只能在主板的AGP插槽中插入AGP显卡),它具有独占总线的特点,只有图像数据才能通过AGP端口传
Currently, we use the main graphics card with PCI and AGP two interfaces, PCI interface is a bus interface, which operates at 1/2 or 1/3 of the system bus frequency (usually 33MHz), if you want to deal with the image data At the same time to deal with other data, then all the data flowing through the PCI bus must be processed separately, when the amount of data transmission is relatively large, there is bound to be some data retention, the system performance will be greatly affected. AGP interface is designed to solve this problem, it is a dedicated display interface (AGP card can only be inserted in the motherboard AGP graphics card), it has the characteristics of an exclusive bus, only the image data can be passed through the AGP port