AMD's add-in board (AIB) partners are ready with graphics cards based on the company's newest GPU, the ATI Radeon HD 4830. Sapphire, on its part, is ready with a card based on its own PCB/cooler design. The company has already released a Radeon HD 4850 based card on the PCB and cooler. Identical pin layout of the GPU (RV770LE) and memory wiring, makes this possible. Features are listed below:

• ATI RV770 LE graphics processor, made on 55nm silicon process(by TSMC)
• 256-bit GDDR3 memory bus
• 575 MHz GPU core, 1800 MHz (900 MHz actual) memory
• 512 MB memory
• 640 Stream Processors, DirectX 10.1
• Supports ATI Crossfire X
• Supports UVD 2.0 hardware video acceleration

Source: Donanim Haber