Snip: The Zalman CNPS9500 AM2 heatsink is compatible with all current AMD Athlon64 processors, and in particular the just introduced AMD 940-pin AM2 processor and socket AM2 heatsink retention frame. As this is the very first socket AM2 (aka socket M2) heatsink to enter the FrostyTech test labs, we'll be touching upon the critical differences between socket AM2 and socket 754/939/940 heatsinks in just a moment. The Zalman CNPS9500 AM2 is a full copper heatsink, except its surface has been brightly chrome plated to give it that nuclear winter, Terminator 2 android feel.

Full review @ Frostytech