GT 640 Luxmark

I got 475 with:

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System: Hackintosh
OS: Mountain Lion 10.8.2
Boot loader: Chimera v1.11.1
CPU: Intel i7 960 (3.30GHz) Quad-Core
MB: Gigabyte x58a-ud3r r2 (Bios FF)
Graphics: nVidia GeForce GTS 450 OC (1GB) DDR5
Ram: Corsair 6GB DDR3 (1600mhz)
HD: Intel SSD 520 Series 240GB
Monitor: Sony Bravia 1920 x 1080 - (42 Zoll)


i would show the screenshot but the option is not available in the advanced section.

cheers