| Tool | Pros | Cons | |------|------|------| | | Official, GUI-friendly, safe | Bloaty, slow to apply, limited per-CCX control | | BIOS | Permanent, stable | Requires reboots, intimidating for novices | | ClockTuner for Ryzen (CTR) | Automated undervolting | Complex, sometimes unstable, abandoned development | | AMDMSR Tweaker v11 | Ultra-light, real-time, no reboot | No automatic tuning, no thermal protection override warnings |
is a command-line utility for Windows designed to reprogram the P-States (performance states) of various AMD CPUs and APUs. It is primarily used by enthusiasts for undervolting or overclocking by directly editing the Model Specific Registers (MSR) that control processor frequency and voltage. Key Features and Usage amdmsr tweaker v11 64 bit