Benchmark: LuxMark 2.0
LuxMark is an open-source, cross-platform GPU computing benchmark. Based on LuxRender, a freeware rendering program, this GPGPU benchmark tests each graphics card's ability to construct a complex scene using OpenCL.
The OpenCL LuxMark analyses each card's GPGPU capabilities, and as we know, the Radeon's GCN architecture is the clear victor in this test. Gigabyte's hefty overclock does little to change the fact that Kepler can be lacking in the GPGPU department.