Yes, it is a dual core, Pentium D 2.8Ghz. ------2Gb ram..
Also an edit to my above Post... I completley reinstalled BL with no addons or extra map downloads installed. Just the very plain jane BL. And I still get the same result with my one of my cores maxed out. cpu never drops below 50%, but will get higher. Must be something with my system itself or the dualcore working with BL.