Kernel 3.18.0-rc4 with git://people.freedesktop.org/~agd5f/linux drm-next-3.19 branch atop. Same as before. And I noticed I compared with the wrong Link. The right one is this: http://www.techpowerup.com/vgabios/152427/msi-r9270x-4096-131205-1.html I'd love to see if there is perhaps an Firmware Update for this card, but MSI only provides a tool namend "Live Update" that only works on $evilOS.