Found the following DX11 benchmark, see what you get on your card, here's my results:
My system: x4 620@3,25 :: GTX 460/786@869core.
download: http://www.computemark.com/cm.php?show=download
My system: x4 620@3,25 :: GTX 460/786@869core.
download: http://www.computemark.com/cm.php?show=download