As most of you may know by now, Valve has released a new Team Fortress 2 Patch for all MultiCore users. So if your computer has multiple cores and you play Team Fortress 2 then you will be able to take advantage with the new patch.
Team Fortress 2’s latest patch – Takes multicore rendering support out of the hands of backdoor console commands and into the proper game options, allowing those with 2-4 core PCs to see faster framerates.
Source: Kotaku