Feature Highlights of AMD Catalyst™ 13.4
Support added for AMD Radeon HD7790 and AMD Radeon HD 7990
Catalyst Driver optimizations to improve performance in Far Cry 3, Crysis 3, and 3DMark
Significantly improves latency performance in Skyrim, Boderlands 2, Guild Wars 2, Tomb Raider and Hitman Absolution
Performance gains seen with the entire AMD Radeon HD 7000 Series for the following:
Batman Arkham City (1920x1200): Performance improvements up to 5%
Borderlands 2 (2560x1600): Performance improvements up to 10%
Quake Wars (1920x1200): Performance improvements up to 13%
Hitman Absolution (2560x1600): Performance improvements up to 11%
Wolfenstein MP (1920x1080): Performance improvements up to 11%
Civilization V (2560x1600): Performance improvements up to 5%
Delivers support for the following OpenGL 4.3 features:
GL_ARB_compute_shader
GL_ARB_multi_draw_indirect
GL_ARB_shader_storage_buffer_object
GL_ARB_arrays_of_arrays
GL_ARB_clear_buffer_object
GL_ARB_ES3_compatibility
GL_ARB_explicit_uniform_location
GL_ARB_fragment_layer_viewport
GL_ARB_invalidate_subdata
GL_ARB_program_interface_query
GL_ARB_shader_image_size
GL_ARB_stencil_texturing
GL_ARB_texture_buffer_range
GL_ARB_texture_query_levels
GL_ARB_texture_storage_multisample
Resolved Issues
With the Radeon HD7790 graphics card, corruption may be seen in the game Tomb Raider with TressFX enabled
Texture flickering may be observed in DirectX 9.0c enabled applications
Corruption observed in Tomb Raider with TressFX enabled for AMD Crossfire and single GPU system configurations
Corruption observed on objects and textures in the game, Call of Duty – Black Ops 2
Corruption observed in the game, Alan Wake (DirectX 9 Mode) when attempting to change in-game settings with Stereoscopic 3D using Tridef
Corruption observed on textures in the game, Battle Field: Bad Company 2 with forced anti-aliasing enabled
Adobe Photoshop CS6 experiences screen flicker under Windows 8 based system
Horizontal line corruption may be observed with forced anti-aliasing enabled in the game, Dishonored
System hang may occur when scrolling through the game selection menu in the game, DiRT 3
F1 2012 may crash to desktop on systems supporting AMD PowerXpress (Enduro) Technology
Known Issues
Jumping artifacts, and unsmooth playback of interlaced clips may be experienced using Cyberlink’s Metro UI players
A black screen may be observed when resuming from a S3/S4 sleep state if the display is unplugged during the sleep state on systems supported AMD PowerXpress (Enduro) Technology
was thinking of just a 5k-6k difference when i3 changes to i5 
