ASUS components are designed for tuning. If you plan to use (exclusive to ASUS motherboards) or GPU Tweak III to boost performance, your power draw will increase by 15–25%.
Asus provides specific recommendations for both stock and overclocked configurations. Since overclocking significantly increases power draw, selecting a PSU based on overclocked wattage is recommended if you plan to push your hardware. Asus Power Supply Wattage Calculator
The Central Processing Unit is often the second most power-hungry component in a gaming rig. ASUS components are designed for tuning
To recap your action plan: