How does voltage play in GPU overclocking performance and stability?

[Tchancoiviesmil]

I’m learning about overclocking and want to understand how voltage play in GPU overclocking affects performance and temperatures. Is increasing voltage always necessary, or are there safer limits? Any beginner tips would help.

 

[Kian]

Voltage directly impacts GPU overclocking by supplying extra power for higher clock speeds. Increasing voltage improves stability at higher frequencies but raises heat and power consumption. Excessive voltage can cause overheating, reduced lifespan, and instability, so careful tuning is essential for balanced performance gains.