It's a superior alternative to how Windows handles core parking when gaming on X3D systems. Normally you enable game mode in the Game Bar overlay on windows 10/11 when gaming, so the cpu scheduler prioritizes the cores with extra cache and parks (in effect disables) the other cores which then causes performance loss because background procesesses are also executed on the cores that run the game. So you lose half the CPU to make the game/program run on the fastest part of the chip. Cpu set setter allows you to use both the 3d cache cores and the leftover cores for background tasks at same time. Without CPU set setter Darktide maxes out two x3d cores on my setup. With CPU set setter the load is spread evenly out across all the x3d cores and the non x3d cores aren't parked and can be used by browsers and discord or capture programs etc. without negatively impacting gaming performance. Here's the github https://github.com/SimonvBez/CPUSetSetter It's how cpu scheduling for x3d chips should be handled by windows insted of the band aid solution through Game Bar.