If you want the best experience, save up the $20–$30 and purchase a legitimate license. You will support the developers, receive automatic updates, and most importantly, keep your system safe from the malware that hides behind almost every "free key" link.
| Software | Price Model | Best Feature | Risk of Fake Keys | | :--- | :--- | :--- | :--- | | | Completely Free | Unlocked voltage control & RTSS overlay | None (Open source-ish) | | FanControl | Free (Donationware) | Insanely customizable fan curves | Low | | ThrottleStop | Free | Best for undervolting laptop CPUs | None |
Alternatively, embrace the open-source giants like MSI Afterburner that ask for nothing in return. In the world of PC optimization, the only thing worse than a low frame rate is a stolen identity.