LuxMark
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.
Perhaps it's good that the v314.09 drivers are unable to run this test; NVIDIA doesn't usually do well in this GPGPU benchmark. We'll update this page with a result as soon as it's available.