difference between 6600gt's ??

[mintsauce5]

Hi , i'm just about to purchase a new pci-e 6600gt graphics card , what i need to know is there much difference between different manufacturers cards , performance wise i mean , i've been offerd a galaxy 6600gt , is that anygood or wot , any advice would be appreciated.
thanks
Tony

 

[Big B]

Except for a few that come pre-overclocked, whats bundled with them is usually the only differance between them all in terms of performance.