How to bechmark GPU performance in FLOPS

Anyone know what codes I can use to benchmark the GPU performance in FLOPS?

I have one Tesla s1070 connected to two IBM x3550 and one GeForce 9500GT installed in a Dell OptPlex755 box


I think the FLOPS performance is code-dependent. I don’t know if there is a “standard benchmark” as LINPACK, but I think it could be quite useless because the only thing thath matter is the performance with end-use code.