Nvidia 270, 290 and GX2 roll out in November

[Eastcoasthandle]

Very well, on diminishing returns.

While diminishing returns is obviously a factor, does that mean we should not push our hardware as high as it can safely go?

Call it the enthusiast's curse, but most of us here will always try to push our hardware to the max, even if it results in minute performance gains.

Do I need my C2Q at 3.6ghz, when I game at resolutions and settings that are GPU limited?

No, of course not. But it's at 3.6ghz anyway, and it will stay there.

I see your point, but from the perspective of an enthusiast, it's moot.

...This was the primary reason I bought my GTX 260. It's a helluva lot more overclockable than the HD 4870...

...the GTX 260 overclocks like a bat out of hell...

...your HD 4870s achieves a 19% overclock on the core through volt mod.
My GTX 260 216 achieved a 28% overclock at stock volts and stock cooling..

etc...
The only real thing that is moot is your overclock comparison between 2 different video cards with no other information. Which is proven in your posts.
Hint: CPU overclocks aren't related to your claims of greater video card overclocks.