Sam and LGA 775 SPi efficiency - name a more iconic duo.
It's obviously an outstanding result (congratulations!) and quite scary to think it's not even his strongest CPU.
When I remember how impressive sub 7m 30s once was, it's kind of crazy we even consider this now. With perfect efficiency scaling 6,700 MHz would lead Sam to ~7m 0.5s. So even 6,700 MHz would likely not be enough, given efficiency tends not to scale 1:1 and it might even be necessary to ease some values on the memory side for DDR3-2144 @ 670 MHz FSB (5:8). However I don't know how much cherrypicking effort Sam has put into the RAM side by his standards compared to the CPU hunt. So maybe there is even a little bit to gain there? I would love to see this, but we really need some magic for this.