New Features
This section provides information on new features found in this release of the RadeonTM Display Driver. These include the following: ATI CatalystTM support for DirectCompute 10.1 OpenGL 3.2 extension support

ATI CatalystTM support for DirectCompute 10.1
This release of ATI CatalystTM provides full support for DirectCompute 10.1 for the ATI RadeonTM HD 4800 Series, ATI RadeonTM HD 4700 Series for both single card and ATI CrossFireXTM supported configurations.

OpenGL 3.2 extension support
This release of ATI CatalystTM provides support for OpenGL 3.2 extension support on the ATI RadeonTM HD 5800 Series, ATI RadeonTM HD 5700 Series, ATI RadeonTM HD 4000 Series, ATI RadeonTM HD 3000 Series and ATI RadeonTM HD 2000 Series. The following is a list of OpenGLTM 3.2 features and extensions added in ATI CatalystTM 9.12: Support for OpenGL Shading Language 1.50 BGRA vertex component ordering (GL_ARB_vertex_array_bgra) Drawing commands allowing modification of the base vertex index (GL_ARB_draw_elements_base_vertex) Shader fragment coordinate convention control (GL_ARB_fragment_coord_conventions) Provoking vertex control (GL_ARB_provoking_vertex) Seamless cube map filtering (GL_ARB_seamless_cube_map) Multisampled textures and texture samplers for specific sample locations (GL_ARB_texture_multisample) Fragment depth clamping (GL_ARB_depth_clamp) Geometry shaders (GL_ARB_geometry_shader4) Fence sync objects (GL_ARB_sync) transform_feedback2 texture_cubemap_array

Performance Improvements
The following performance gains are noticed with this release of CatalystTM 9.12: 3DMark Vantage ­ overall performance improves as much as 9% on ATI Radeon HD  5800 and ATI Radeon HD 5700 series products.  GT1 ­ Jane Nash performance  improves as much as 15% and FT4 ­ GPU Cloth improves up to 15%  S.T.A.L.K.E.R. ­ Call of Pripyat ­ Performance improves as much as 6% on single  card configurations

Release notes

https://a248.e.akamai.net/f/674/9206/0/www2.ati.com/drivers/Catalyst_912_release_notes.pdf

Download page

http://support.amd.com/us/gpudownload/Pages/index.aspx