Starting with AMD Catalyst 14.6 Beta, AMD will no longer support Windows 8.0 (and the WDDM 1.2 driver)
  • Users should upgrade (for Free) to Windows 8.1 to take advantage of the new features found in the AMD Catalyst 14.6 Beta
  • AMD Catalyst 14.4 will remain available for users who wish to remain on Windows 8
    • A future AMD Catalyst release will allow for the WDDM 1.1 (Windows 7 driver) to be installed under Windows 8.0 for those users unable to upgrade to Windows 8.1
eature Highlights of The AMD Catalyst 14.6 Beta Driver for Windows
  • Performance improvements
    • Watch Dogs performance improvements
      • AMD Radeon R9 290X - 1920x1080 4x MSAA – improves up to 25%
      • AMD Radeon R9290X - 2560x1600 4x MSAA – improves up to 28%
      • AMD Radeon R9290X CrossFire configuration (3840x2160 Ultra settings, MSAA = 4X) - 92% scaling
    • Murdered Soul Suspect performance improvements
      • AMD Radeon R9 290X – 2560x1600 4x MSAA – improves up to 16%
      • AMD Radeon R9290X CrossFire configuration (3840x2160 Ultra settings, MSAA = 4X) - 93% scaling
  • AMD Eyefinity enhancements:
    • Mixed Resolution Support
      • A new architecture providing brand new capabilities
      • Display groups can be created with monitors of different resolution (including difference sizes and shapes)
      • Users have a choice of how surface is created over the display group
        1. Fill – legacy mode, best for identical monitors
        2. Fit – create the Eyefinity surface using best available rectangular area with attached displays.
        3. Expand – create a virtual Eyefinity surface using desktops as viewports onto the surface.
    • Eyefinity Display Alignment
      • Enables control over alignment between adjacent monitors
    • One-Click Setup
      • Driver detects layout of extended desktops
        1. Can create Eyefinity display group using this layout in one click!
  • New user controls for video color and display settings
    • Greater control over Video Color Management:
      • Controls have been expanded from a single slider for controlling Boost and Hue to per color axis
    • Color depth control for Digital Flat Panels (available on supported HDMI and DP displays)
      • Allows users to select different color depths per resolution and display
  • AMD Mantle enhancements
    • Mantle now supports AMD Mobile products with Enduro technology
      • Battlefield 4: AMD Radeon HD 8970M (1366x768; high settings) – 21% gain
      • Thief: AMD Radeon HD 8970M (1920x1080; high settings) – 14% gain
      • Star Swarm: AMD Radeon HD 8970M (1920x1080; medium settings) – 274% gain
    • Enables support for Multi-GPU configurations with Thief (requires the latest Thief update)
  • AMD AM1 JPEG decoding acceleration
    • JPEG decoding acceleration was first enabled on the A10 APU Series in AMD Catalyst 14.1 beta, and has now been extended to the AMD AM1 Platform
    • Provides fast JPEG decompression
    • Provides Power Efficiency for JPEG decompression
Known Issues
  • Running Watch Dogs with a R9 280X CrossFire configuration may result in the application running in CrossFire software compositing mode
  • Enabling Temporal SMAA in the AMD Catalyst Control center under a CrossFire configuration when playing Watch Dogs will result in Flickering
  • AMD CrossFire configurations with Eyefinity enabled will see application stability with BattleField 4 or Thief when running Mantle
  • Catalyst Install Manager text is covered by Express/Custom radio button text
  • Express Uninstall does not remove C:\Program Files\(AMD or ATI) folder
http://www2.ati.com/drivers/beta/amd...dows-may23.exe