We already know all there is to know about AMDs new Radeon 5700 series video cards including the 5770 and the 5750. The details and even pictures were leaked last week ahead of the official announcement today.
AMD has gone official with the cards that both fully support DirectX 11 and Eyefinity multi-monitors from ATI. The video cards deliver over one teraflops of computing power. The GPUs are built on 40nm technology and have up to 800 stream processors.
The 5770 has 800 stream processors, GDDR5 RAM clocked at 1.2GHz. The GPU core is clocked at 850MHz. the 5750 is clocked at 700MHz on the core and 1.15GHz on the memory. Both of the cards will sell for well under $200 and some features will vary depending on the brand of the video cards.