AMD Catalyst 9.1

This is the first update of the video driver in the current year. The most significant changes are:

OpenGL 3.0 - full support incl. GLSL 1.3
Hybrid CrossFire - you can combine the power of several GPUs, including, for example, an IGP video chip and an external graphics accelerator
Multiview (multiple independent displays on multiple GPUs)
Many bugs fixed, including flickering video in composite mode and more.

ati.amd.com/support/driver.HTML -download.