The product is not positioned as an upgrade option for a machine intended for gaming, but rather than a device to replace a damaged graphics card in an office computer. Previously ATI offered Radeon 7000 and Radeon 9200/9250 solutions for PCI bus, whereas partners of rival Nvidia Corp. offered GeForce 5500 and GeForce 6200-class products for PCI bus.
Wide-spread availability may not happen, and pricing is not known. With such a small potential market, it's likely it will be available in limited quantity and only in some retailers, or perhaps online only. Still, it's interesting to see vendors going after such a small market.