LuxMark has gained, during the past year, a good level of acceptance as OpenCL benchmark. It has been used by AnandTech, Tom's Hardware, Vr-zone and other sites as standard GPU computing benchmark.
AMD has used LuxMark as one of the 5 GPU computing benchmarks to present the new HD7970.
DL V3.0 (NEW, added end of Feb 2015) - due to OpenCL driver (compiler fails) probs (OS X, Linux) on most gpus only the small scene luxball can benched. The two bigger, complexer scenes fail.
Luxmark 3.0 Results Database
Luxmark 2.0 Results Database - you can look / search for already submitted results (by the app, not posted here)