The first Radeon HD 4800 graphics cards produced by Xfx are approaching and according to the first pictures they will have a PCB color rather unusual for AMD boards.
Xfx Radeon HD 4870 (picture: alternate)
The Xfx Radeon HD 4850 has the common clock speeds of a Radeon HD 4850: The GPU is running with 625 MHz, the 512 MiByte video memory is clocked to 993 MHz.
The Radeon HD 4870 from Xfx is also running with default clock speeds: While the clock of the 1,024 MiByte VRAM is set to 900 MHz, the frequency of the GPU is 750 MHz.
But both Radeon HD 4800 graphics card have an Xfx typical black PCB. The Xfx Radeon HD 4870 is already listed in European online shops - contrary to the HD 4850 version.
Xfx Radeon HD 4850 (picture: alternate)