The ATI Radeon HD 3870, pictured above, will feature 825MHz core and 2400MHz memory clocks, DirectX 10.1 support, and PCI-e 2.0 technology.
ATI Radeon HD 3850will be clocked at 700MHz/1800MHz core/memory with DirectX 10.1 support and PCI-e 2.0.
Both cards will feature 55nm manufactured graphics processing unit (GPU). The other specifications are as follows:
If you want more leaked information check out this...
It has been widely rumored that the upcoming RV670 will support DX10.1. This white paper has been leaked out on the internet and it looks liek the real deal. The ATI Radeon HD 3800 series of GPUs will be the first to be designed for DirectX 10.1, as well as other cutting edge technologies, including PCI Express 2.0, Unified Video Decoder (UVD), hardware accelerated tessellation, and power efficient 55nm transistor design. Check out the DirectX 10.1 white paper here
Speaking at AMD's financial results conference, President and COO Dirk Meyer said: "We will launch the RV670, the world’s first 55nm GPU in the fourth quarter." So if you want to know when they will be coming out you can bet money that they are aiming for the middle of Q4 if all goes well.