Summary: AMD has successfully executed the next step in their Radeon HD 5000 Series launch strategy. The HD 5770 offers a healthy performance boost of over the 25% compared to the HD 4770 with performance being equivalent to the Radeon HD 4870. The new card includes all the new features like DirectX 11, ATI Eyefinity, improved HDMI Audio and reduced power consumption.
Pros: Solid performance improvement over HD 4770, Support for DirectX 11, DirectX 10.1, Sexy looks, Reasonably priced, Very low power consumption, GDDR5 memory, Low temperatures, Dirt 2 voucher included, Support for AMD EyeFinity Technology, Native HDMI & DisplayPort, Improvements to integrated HDMI audio device
Cons: Not the best price/performance ratio, Fan could be quieter, DirectX 11 won't be relevant for quite a while, No support for CUDA / PhysX