6800 gt or ultra vs. dual 6600 gt or ultra vs. dual 6800 gt/ultra

[rickyman]

does dual 6600 gt/ultra same as one 6800 gt/ultra as HL2 benchmarrk?

does dual sli 6800 gt/ultra makes the games smoother or faster?

do we need dual 6800 gt/ultra to play HL2 faster?

does one 6800 gt/ultra video card enough to make it faster?

 

[Keysplayr]

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