ATI almost has a working DirectX 10 driver for Windows Vista its upcoming R600 GPU.
We know that ATI is still trying to finish up Crossfire support and to polish up the OpenGL performance in Vista driver but the driver will be ready for hardware launch.
Some other details are around which we cannot yet confirm. What we know is that the chip is 80 nanometre, has a 512-bit memory controller, unified Shader architecture, supports DirectX 10 and should make G80 run for its money.
The first R600 graphics cards may arrive in February. Meanwhile the first overclocked GeForce 8800 GTS and GTX graphics cards are starting to flood the market.