Checking To See If Intel Speed Shift Is Enabled - Glenn Berry
Topic: Disabling a CPU feature: Intel Turbo Boost @ AskWoody
PSA: if you are dealing with micro stutters on an intel platform look for Speed Shift in the bios settings where available and disable it. (fixed title and mainly for newer platforms) :
MPG Z390 GAMING EDGE AC - Issue with CPU Idle clock | MSI Global English Forum
Examining Intel's New Speed Shift Tech on Skylake: More Responsive Processors