AMD has released a beta update version 15.9 of their Radeon Catalyst drivers but had to issue an advisory to roll back to previous versions immediately, following many users reporting a bad case of memory leak. Catalyst version 15.9 beta contains optimizations for the upcoming Star Wars Battlefront Beta and DirectX12 optimizations for Fables: Legends but it had an issue where the memory was used up by simply resizing a window in the Windows desktop. The memory usage did not go down once used and requires the user to restart the system.
User Szaby59 from Reddit posted the following video on his YouTube channel to illustrate the issue:
AMD advises to roll back to either 15.8 or 15.7.1 version drivers:
“We are aware that some users are experiencing an issue in AMD Catalyst 15.9 Beta that causes all available video memory to be used whilst resizing active browser windows.
Thank you for bringing this issue to our attention and being patient whilst we continue to investigate. We’re working on getting it resolved as soon as possible.
For users looking for an alternative driver that does not experience this issue please find Catalyst 15.7.1 located here”
Catalyst 15.9 beta driver updates and fixes:
- Star Wars™: Battlefront Beta – Performance and quality optimizations
- Fable Legends : Includes the latest DirectX® 12 optimizations for the Fable Legends: Benchmark
-  Diablo 3 crashes in the Act 2 Desolate Sands area of the game
-  The AMD Catalyst Control Center ‘update’ option fails to download the latest driver
-  Dragon Age: Inquisition may crash if launched in Mantle mode
-  The DirectX® Diagnostic tool does not report DirectX® 12 available on supported products
-  World of Warships may crash on some AMD Radeon HD5000 and HD6000 series products
-  Assassin’s Creed® Unity may experience minor frame stutter when AMD CrossFire™ mode is enabled
-  Anti Aliasing settings not being retained after changes are applied
-  Some BENQ 144hz Freesync™ monitors may lose the signal while uninstalling the driver
-  DiRT Rally™ crashes during gameplay and benchmarking when launched in DirectX® 11 mode on some BENQ 144HZ Freesync monitors
-  GTA V crashes on some AMD Radeon R9 390X GPU’s
-  Star Wars: Battlefront Bata – Flickering may be experience if AMD Crossfire is enabled
-  Corruption may occur in DiRT Rally™ with CMAA enabled with Portrait SLS and AMD CrossFire™ mode enabled
-  A black screen may be encountered on bootup on Windows 10 systems. The system will ultimately continue to the Windows login screen.
-  Intermittent playback issues with CyberlinkPoweDVD when connecting to a 3D display with an HDMI cable
-  A TDR error may be experienced while toggling between minimized and maximized mode while viewing 4K Youtube content
-  Elite: Dangerous – poor performance may be experienced in SuperCruise mode
-  Final Fantasy XIV – Heavensward may crash when run in DirectX 11® mode and borderless window mode
-  Some applications may fail to launch on some Mobility platforms when launched in High Performance mode
-  Windows 10 driver installation may halt on some systems with an AMD 990FX chipset and AMD CrossFire™ enabled
-  Mad Max – Color corruption is observed when Alt+Ctrl+Del is pressed followed by the Escape key
EDIT: 9/30/2015 – AMD Has now released an update to fix the issue.