I recently found out that there is speculation that 8 cores of the Core i7 may actually be hurting game performance and that turning hyperthreading off actually helps performance in some games.

Link:
http://vr-zone.com/articles/does-cor....html?doc=6160


Are games just not optimised to run on more than 4 cores? Is it the OS (Vista 64)?
Anyone with knowledge on this subject help out?