Researchers at Warwick University testing the Naga Viper found that it measures 1,359,000 on the Scoville scale, which rates heat by tracking the presence of a chemical compound. In comparison, most varieties of jalapeņo peppers measure in the 2,500 to 5,000 range -- milder than the Naga Viper by a factor of 270.
Habanero take a step, no wait, several steps down from super hot!