Are you really this stupid or must I point out common sense stuff to you all the time? Seriously. I cant' believe someone who is supposed to be so called all tech-savy can't even put one and one together.
From the benchmarks, it's clear the 260+ beats the regular 280 in certain areas and what not. Just like the 48701GB beats the 280 in certain areas and what-not from various benches. Put them side by side, one plus one and woolah!!! They are pretty much equal. Jeez, some people are so god damn stupid. Oh yeah, those benches posted above pretty much says it as well.