What is the difference betwwen agp and pci concerning video cards?

what is better in terms of performance? Which is more expensive?

What is the difference betwwen agp and pci concerning video cards?
AGP (Accelerated Graphics Port) cards serve the same purpose as PCI graphics cards. However, the AGP interface, which was created by our buddies at Intel, has become the more popular choice for PCs. Part of the reason for this is that AGP cards manage memory better than PCI cards. The AGP interface can actually use your computer's standard memory as well as the video memory to help boost video performance. So, if you have an AGP slot in your computer, I'd go with an AGP card. If you only have PCI slots, however, a PCI graphics card isn't going to be much different.





PCI-Express is the latest incantation of peripheral interconnections. It is destined to replace both PCI and AGP, especially in the world of video cards. More products are slated to be released that support PCI-Express. Most modern motherboards have PCI-Express built-in. The speed of PCI-Express is another key difference between PCI, AGP and PCI-Express.
Reply:PCI is worse and oldest. AGP is ok but not best


PCI X is best and high performance
Reply:PCI will give you way better performance. If your video card has a GPU (graphics processing unit) i t will take the load off the processor and you will get way better PC performance. Try buying a video card from NVIDIA like the FX 5500 it has 256 mb of video memory. ALOT.
Reply:AGP vs PCI


As computers became increasingly graphically-oriented, the graphics card became far more important than other PCI devices, and, thus, the AGP slot was developed. AGP slots are superior to PCI for graphics cards because they provide a dedicated pathway between the slot and the processor, allowing for faster communication between the two. In addition, AGP uses sideband addressing, meaning that addressing for packets is carried outside of the packet, meaning that the entire packet does not need to be read to get addressing information. In addition, to load a texture, a PCI graphics card must copy it from the system's RAM into the card's framebuffer. An AGP card is capable of reading textures directly from system RAM using the Graphics Address Remapping Table (GART). GART reapportions main memory for texture storage, allowing the graphics card to access them directly.


The two main reasons graphics cards with the PCI interface are produced is that first they can be used in nearly any PC, as very few modern desktop PCs do not have PCI slots - though some motherboards with built-in graphics adaptors lack an AGP slot. Second, a user with an appropriate operating system can use several PCI graphics cards (or several PCI graphics cards in combination with one AGP card) simultaneously - to give many different video outputs (for the use of many screens). This cannot be done with AGP cards, as very few (if any) motherboards are equipped with more than one AGP slot.
Reply:PCI-E is better performance





AGP is almost extinct now, it dosent really come on any new motherboards anymore





~same price