http://www.fudzilla.com/index.php?option=com_content&task=view&id=7805&Itemid=1
"Radeon HD 4870 and Radeon HD 4850 will both have a whopping 800 Shaders. The previous generation had 320 and as you can see we are now talking about more than double the number. ATI will market its cards as TeraScale engine capable and as we’ve suggested before RV770 will reach 1 TeraFlop processing power. With 800 Shader processors at 625MHz the Radeon HD 4850 can reach 1000 GigaFlops or 1 TeraFlop while Radeon HD 4870 at 750MHz would each 1.2 TeraFlop. People have reported that the card will end up with 480 shaders, but the number is bigger. The big issue for ATI is that its 480 Shaders might end up way slower than Nvidia's 240. This was always the case in the past and Nvidia's Shaders are usually clocked at higher than GPU frequency. We believe that ATI’s Shaders were quite transistor cheap as the RV770 die won’t be much bigger compared to RV670 and these numbers actually do bring some optimism."
The card looks like its going to be awesome!!!
The RRP should be about $299 for this beast.
The 4850 shouldn't be much slower and that will cost $199
The old 3870 had 320 stream processors! They increased it by two and a half times the previous cards capabilities.
Also rumoured are beefed up texturing units which should help keep the card running efficiently as this was a bottleneck in the previous design.
Furthermore with GDDR5 it should have 120gb second memory bandwidth so it should absolutely rock in high resolutions.
This is such an awesome buy it seems, it makes me sad that I already have an 8800gt.
Lastly, the gap between a PC with this or a GTX260/280 and the Xbox360 is the same as the Xbox360 and the Wii.
Tease.
