AMD has released yet another build of the Catalyst 13.11 drivers. The new Beta9.2 drivers mainly fix the fan speed issues with the R9 290 and R9 290X graphics cards. The variation in fan speeds resulted in varied performance among different cards which led some consumers and media outlets in believing that AMD has provided media with golden samples which are better than the retail cards. This created quite a hoax among online forums worldwide but AMD has quickly came forward with the Catalyst 13.11 Beta9.2 which addresses this issue.
With the new drivers, AMD has basically changed how you control fan speed in CCC. Prior to this, fan speed was set using a percentage but now you can directly set RPM. Furthermore, AMD has also slightly raised the fan speeds; its 2200 RPM for the R9 290X and 2650 RPM for the R9 290. As much as this increases the performance of the card, it also increases the overall noise output. Ryan Shrout, from PCPerspective, has given a detailed look at this matter and provided some results and conclusions about the fixes brought forward by the Catalyst 13.11 Beta9.2 drivers.
Apart from that, the new drivers improve the anti-aliasing performance in Call of Duty: Ghosts along with some other improvements. You can see the complete change log here.