Most graphics card manufacturers now have their own custom OC and monitoring utilty, and Gigabyte's is OC Guru. Power Target for GPU Boost is limited to 115% on this board. Core voltage, which is currently done through a driver interface rather than i2c hardware control, cannot be adjusted by software means either.
|Reference GTX 660Ti||Gigabyte Windforce 660Ti||Gigabyte Windforce 660Ti with OC|
|Core Clock||915 MHz||1033 MHz (+13%)||1083 MHz (+5%)|
|Boost Clock||980 MHz||1111 MHz (+13%)||1161 MHz (+5%)|
|Memory Clock||1502 MHz||1502 MHz||1752 MHz (+17%)|
As with any overclocking, your mileage will vary.
Stock Clocks/Voltages with 100% Fan (Max 60 degrees celcius)
Overclocked / Raised Power Limits with 100% Fan (Max 66 degrees celcius)