Включил его в опциях, и появились жуткие тормоза и подвисания.
Без него — стабильные 60 FPS (синхронизация). Процессор, естественно, многоядерный. Тестируйте у себя, пишите о результатах...
Added Multicore Rendering
* This initial release is aimed at testing compatibility, so the option is OFF by default
* To turn it on, go to the Options->Video->Advanced dialog, and check the "Multicore Rendering" option
Other Changes
* Several performance improvements to decals and client bone/flex setup
* A variety of alt-tab and mode switch fixes
* Improvements to the way the engine initializes surround sound, fixing some specific hardware cases
* Fixed a crash on exit in Vista 64