Вот список вносимых изменений :
Crysis hotfix includes the following
DirectX 10: Fixes texture flickering in bushes, clouds, trees
DirectX 10: Performance improvements
DirectX 9: Fixes Anti-Aliasing corruption seen on the ATI Radeon 2900 Series
DirectX 9: Anti-Aliasing performance enhancements
DirectX 9: Crossfire performance improvements
DirectX 9: Fixes random graphics corruption during game play