A new update of GPU-Z is available at TPU. One of the important new things of v0.7.3 is the preliminary support of AMD’s new naming scheme for upcoming Radeon cards: R7 240, R7 250, R7 260X, R9 270, R9 270X, R9 290, R9 290X. More details on those new names can be found here.
I’m very worried because no response in Geeks3D forum (50 fps issue in ShaderToyMark) yet about too time. HEEEEELLLP!!!