I'm not sure if this is old news or not but it's definitely cool none the less. PC Tuner.net has its Travelling towards 7000 article which talks about how LN2 lets them get past the 7 GHz barrier, sweet!

After a quick setup, we had achieved 7104 Mhz (absolute world record for this type of cpu); at this frequency, we were able to score the new Italian SuperPi 1M record: 18.859 secs!