AGP vs PCI

I have taken out the PCI Graphics card, and installed the AGP Card in the AGP slot, but when I power on the PC, the monitor says that there is

AGP is a dedicated graphics card slot that is found on most motherboards produced between 1997 and 2005 It replaced the earlier Peripheral

what is the slot position in football Accelerated Graphics Port is a parallel expansion card standard, designed for attaching a video card to a computer system to assist in the

what is slot rtp I bought it more than 2 years ago Now, I want to upgrade my card But since my motherboard has an AGP slot, I would like to know which AGP card