The new Revision of the Raptor GPU pot is a massive full copper solution. I reworked the internal structure to provide a maximum surface for the best and fastest temperature control. To hold the temperature as long as possible I decided to use a solid copper design - 600 g more pure copper compared to Raptor revision 1 - the price for you stays the same!

Additionally I increased the size of the contact area so even the biggest IHS will be completely covered. Raptor rev2 is designed to reach the best temperatures using Liquid Nitrogen or DICE on low-end cards like 8800 GT but also to push your high-end HD 7970 to the real limits.

The new stainless steel mounting system will give you the maximum contact pressure and using the polished stainless steel backplate you don't risk to damage your GPU by bending the PCB.

More info: http://hwbot.org/forum/showthread.php?t=51290