GPU tuning means changing a graphics card’s clock speed, voltage and power limit. Overclocking raises clocks for about 3–8% more performance; undervolting lowers voltage to cut temperature by 5–10°C and power by 10–25% while keeping nearly the same performance. Both are done safely with MSI Afterburner or AMD Software: Adrenalin Edition.
What is the difference between overclocking and undervolting?
The difference between overclocking and undervolting is the goal: overclocking aims for more performance, undervolting aims for lower heat and noise.
| Attribute | Overclocking | Undervolting |
|---|---|---|
| Changes | Higher core and memory clocks | Lower voltage at the same clock |
| Performance | +3–8% | About the same |
| Temperature | Higher | 5–10°C lower |
| Power draw | Higher | 10–25% lower |
| Risk | Instability, more heat | Instability only |
How do you overclock a GPU?
You overclock a GPU by raising the power limit, then increasing core and memory clocks in small steps and stress testing each step. Follow how to overclock a GPU, and read what overclocking a GPU does to decide if it is worth it.
How do you undervolt a GPU?
You undervolt a GPU by flattening the voltage/frequency curve in MSI Afterburner (NVIDIA) or setting a negative voltage offset in AMD Software (Radeon). The full method, including underclocking, is in how to undervolt a GPU.
Does undervolting lower GPU temps?
Yes. Undervolting lowers GPU temperature by 5–10°C on most cards, and more on high-power cards. Compare results with normal GPU temp.
Is GPU tuning safe?
Yes. GPU tuning within the limits allowed by official software is safe, because modern GPUs protect themselves with temperature and power limits. Unstable settings cause crashes or artifacting, which disappear after a reset to default.
All GPU tuning guides
Related guides
- How Hot Is Too Hot for a GPU? – GPU Temperature
- Error Occurred on GPUID: 100 – GPU Problems & Fixes
- GPU Cooler Guide – GPU Accessories