The upcoming RADEON 9800 and RADEON 9800 PRO that will be launched on the 5th or on the 6th, both feature dual 400MHz RAMDAC, 165MHz TMDS transmitter, 8 pipeline architecture, 256-bit memory bus, 512Kb of serial flash ROM, AGP 8x/4x/2x compatibility, integrated TV-out controller (up to 1024x768) and HYDRAVISION technology to support for simultaneous dual displays and DirectX 9.0/OpenGL support.
It was said that the RADEON 9800 will be clocked at 325/620MHz for core and 128MB of DDR SDRAM memory. The RADEON 9800 PRO will probably support 256MB of DDR memory and will be clocked at 400/920MHz. Some sources indicated that there will be 375/750MHz versions of the product, while the 400/920MHz clocked graphics cards will either be limited edition or will be available later. To tell you the truth, the latter is more likely, as the VPU itself supports DDR-2M memory, while no memory maker announced production of such chips. On the other hand, Hynix announced 1000MHz DDR SDRAM memory products in late 2002 (see this news-story), thus, such chips should be available by now and ATI may utilise them in order to create the most-powerful graphics card on the market. Remember that this information should still be considered as unofficial.
What also seems to be important is that the RADEON 9800 and the RADEON 9800 PRO will be made using copper 0.15 micron technology and will have a number of advantages over the previous-generation RADEON 9700 family.
According to our sources, the most important innovation of the RADEON 9800 is the F-buffer technology that supports pixel shader programs with unlimited number of instructions. We will compare this feature of the RADEON 9800 as well as the GeForce FX 5800, which also boasts with infinite number of pixel shaders instructions, once we have both in our lab. Another pair of innovations among the SMARTSHADER 2.1 architecture is Multiple Render Target and shadow volume rendering acceleration support.
Another couple of improvements are said to be introduced under SMOOTHVISION 2.1 brand-name. ATI is going to again optimize its FSAA and anisotropic filtering patterns to offer you even more speed and quality.
There may be other minor differences between the RADEON 9700 and RADEON 9800 VPUs, but I think you will have a great opportunity to learn more about them in one of our upcoming articles.