Most of the 2500/2600K chips can run much higher then spec though not as many numbers like the older batches. I just tested two 2700K in the past week and they are pretty decent. One will do 55 multi at 1.50v and the other is just 52 but at 1.42v. Both chips where tested in my torture rack with remote water loops and killa hardware which makes it pretty easy. Both chips also run cool for mid number vid compared to some of my 2600Ks.