does gx270 support ati radeon 9550 agp card

Agp cards are outdated nowadays, i am 100% sure that your pc will not support this.If you want to updated your graphics memory why not going for pci2 video cards.Anyway have a nice day....

Hmm. Why would you shop an AGP card? I thought your PC had a PCI-E slot? Radeon's card probably has a 250w or less power supply, which would work with your computer, I'm sure. PCI cards will give you a DVI image with a converter (if your monitor's analog) but only converting it once. With an analog card, you're either receiving the analog image, or it has to convert to DVI and then back again to analog, causing even less graphics intensity. If you want an AGP slot card with better performance for a better price, check out the GeForce 8400GS. But if your PC has an AGP slot than an AGP card will technically work in it. But PCI-E is just a better choice all around for the buck.