NotCPUCores
Functionally the Same, but Free. Soon to be even better than the Original ;). Download under Releases
What is NotCPUCores?
What NotCPUCores is called a lot of things. A lot of them are snake oil terms, so let's get them out of the way first, before we get technical. "Game Booster", "FPS Booster", "System Stabilizer", "Process Tweaker", "Game Tweaker" among others. NotCPUCores uses Windows' own tools to tell it how to give CPU cores, disk usage priority, and other tasks to a game or application, compared to how it handles them by default. NotCPUCores does the same or similar tweaks compared to non-free alternatives.
Is it worth using NotCPUCores/CPUCores/(Insert Other Optimizer/Booster Here)?
All these optimizers do simple tweaks that you yourself can do, so probably not; You DEFINITELY should NOT be forced to pay money for it. You MAY see marginal returns, slightly better stability of FPS, but also more battery usage. There is SIMPLY NO REPLACEMENT for doing a hardware upgrade. Hang on though, there's some upcoming changes in 1.6.0.0 for those of you that stream. Stay tuned ;)
How does it work? / Getting the Benefits without Installing / Etc
Visit the FAQ Page
This program is free and open source. Feel free to download and modify. Please do not put up for sale.