Radeon First off, it's aimed at the 6900 series cards but runs fine on the 5800 too since there's not any major chipset difference except a few scaling and speed tweaks really, must say though for the 655mb size I was completely unimpressed with it, most of the old demos such as the brilliant Froblins or Ruby Whiteout look much better tbh. I think it's about time they dropped stupid transformers ideas of the last two tech demos and get back to doing ATi Ruby based demos... The HK-2207 real-time demo features a number of post processing effects (depth-of-field, lens flare, ghosting, aerial perspective/atmospheric, LUT, emissive and reflection) provided as an easy approach for developers and artists to adopt Microsoft® DirectX® 11 programming. This demo also uses a current trend in game engines utilizing deferred lighting and deferred shading allowing many more lights and rapid prototyping. A newly developed GPU accelerated physics particle system is introduced utilizing DX11 DirectCompute. Bullet Physics is used with a new fracture/destruction approach that also features procedurally generated unique debris leveraging DX11 tessellation. Movies: Coming soon Demo: » HK2207.exe (655 MB)* * The HK2207 demo requires Windows Vista® or above operating system, a Radeon™ HD 6900 Series graphics processor and associated Catalyst™ software, a dual- or quad-core CPU, and 2GB of RAM.