For the most part it helps to smooth out graphics, as long, of course, as you can get 120fps.
Although some monitors can only do 60Hz input, but have a 120Hz panel, the monitor basically does all the smoothing (doubling of each frame) in the panel it's self. It makes gameplay smooth and still only has the 60FPS requirement.
Also if you have a REAL 120Hz monitor, you can do nVidia 3D stuff (surround if you have 3).
_________________ System Core: | Intel Core i5-2500K + ASUS P8Z68-V + 16GB Corsair XMS3 DDR3 1333 MHz | Win7 x64 | MSI R7970 Lightning 3GB [1105/1400] | Display: | 3 x Dell Ultrasharp 3007WFP-HC @ 7680x1600 | Dell u3011 |
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