ComputeMark 2 is a somewhat odd graphics card benchmark that targets the new generation of DirectX 11 architectures and specifically the DirectX 11 Compute Shader. This enables users to test the computational power of the graphics cards.
ComputeMark can give you a hint of the performance of the card in more general purpose applications. ComputeMark has one part measuring the computational power of the graphics card and a burn-in test for putting load on the graphics card, good for stability tests.
ComputeMark 2 can be found at ComputeMark.com.