The Inq reports the Raedon X1300 (RV515) will be available in both PCI Express and AGP flavors.
This card will support HDR, Shader Model 3.0 and will be equipped with 512MB memory for prices as low as $100.
At this time we can only confirm that Radeon X1300LE comes as an AGP card while we are not sure whether ATI plans to offer a Radeon X1300 PRO card as well.
The RV515 LE, Radeon X1300 LE is targeting 450MHz engine clock and 500MHz memory while Radeon X1300 PRO is targeting 600MHz clock with 800MHz memory. We know that X1300 LE comes in PCIe version supporting Hyper Memory configurations and this card will have memory working at 400 or 500MHz and the core running at 450MHz.
These 90nm cards have four pixel pipelines and have a 128 bit memory interface along with support for ATI's Avivo video technology. These cards will be available in the first week of October.