Intel Pentium D 805 overclocks to 7Ghz with LN2
 

In the first group of tests we have reached the frequency of 7037, approximately doubling the default clock of the cpu! Even if these are very impressive numbers, we were been confident in a partially unexpressed potential of the cpu. We were in a truth!

The highest confiirmed clock in that article is 6 Ghz. If you take a look at the screenshots the 7 Ghz comes from the P D 955 EE ES

Updated title:)