ATi's R420 will be called Radeon x800 PRO according to the article. This one will be launched on the 26th of April, and a faster Radeon x800 XT will be presented on the 31st of May.
PCI Express x16 solution powered by the R423 architecture will see the light of the day on the 14th of June, according to AnandTech. ATI on Tuesday began marketing campaign on its web-site to support the launch of the new graphics architecture.Source: X-bit Labs
According to previously released information, the ATI code-named R420/R423 graphics processors will contain about 160 million of transistors and will be produced using low-k 0.13 micron technology at TSMC. The chips are projected to utilize the current R300 architecture, but with general improvements in they way they compute and perform. The upcoming VPUs’ 8 or 12 rendering pipelines with unknown number of TMUs as well as 6 vertex shader engines along with new FSAA and anisotropic filtering patterns are said to be the key drivers of the speed upwards.
NVIDIA’s NV40 graphics processor is also expected to boast with substantially boosted speed in games and even support Pixel Shaders 3.0 along with Vertex Shaders 3.0 – something that ATI’s R420 is not likely to have inside.