https://bugs.freedesktop.org/show_bug.cgi?id=68235
--- Comment #38 from Alexandre Demers alexandre.f.demers@gmail.com --- Running with mclk at 120000.
I went under Windows and launch GPU-Z. We should be able to reach 1300MHz.
I've read that some Cayman cards were made to use a VDDCi between 1.15 and 1.16. I'm pretty sure I can reach stability at 130000 by rising VDDCI a bit.