One of AMD’s upcoming ATI Radeon video cards using the RV770 GPU, first tipped in May, has slipped out early and delivered some details into the hands of HotHardware. The ATI Radeon HD 4850 features 800 stream processors packed onto a 55nm GPU with a 625MHz clock speed. As expected, there’s 512MB of 993MHz GDDR3 RAM linked with a 256-bit memory bus. Of course, when you’re holding a pre-release card you don’t just sit & grin at it; you slap it into a test system and benchmark it against some of NVIDIA’s latest rivals.


AMD is set to replace a large percentage of its current video card range starting from next month, according to a recent leak, as the ATI Radeon HD 4800 series supersedes the existing 3800 series. Key improvements will be the inclusion of AMD’s GPGPU physics processing, hitherto limited to the high-end cards, and improved HD video decoding that takes the strain off the main CPU. Certain models will also be able to route 7.1 surround sound via HDMI.









