ATI’s new mainstream card Radeon HD 2900 PRO powered with R600PRO cut down chip will have the TDP lower than 150W. More important this chip will end up clocked at 600 MHz and will have 512 MB memory with 256 bit interface with 51 GB/s bandwidth.
We believe that this will be just about enough to beat the fastest Geforce 8600 GTS even the overclocked one but I would not be to worried about Nvidia as the company can easily cut down the prices of 8800 GTS 320 MB to put the pressure on this new Radeon HD 2900 PRO.
R600 has 320 stream processors while R600 PRO will have one half of them, 160 total but the number or ROPs will remain the same.
We still don’t know the launch date of this product but it doesn’t look that it will be earlier than late September to October time.