http://www.anandtech.com/systems/sho...tml?i=1961&p=4
Even in plain beta status, and with no 64bit optimizations (recall that DXn announced a special AMD64 version of DivX), DivX5 is already 15% faster on a 64bit OS. Now imagine a stable OS, optimized drivers, and an AMD optimized DivX.. Intel suddenly doesn't look that attractive anymore.. even in their very own domain (AMD has already been doing much better in XviD encoding).