1. What is PC Power Consumption?

PC power consumption is the total amount of electrical power required by all components in a computer system. This calculator sums the wattage of individual components to estimate total system power draw without safety margin.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( P_{CPU} \) — Processor power consumption (TDP)
• \( P_{GPU} \) — Graphics card power consumption
• \( P_{RAM} \) — Memory modules power consumption
• \( P_{Storage} \) — Storage devices power consumption
• \( P_{Other} \) — Other components (fans, RGB, etc.)

3. Importance of Power Calculation

Details: Knowing your system's power requirements helps select an appropriate power supply unit (PSU) and ensures stable operation. This calculation provides the bare minimum without safety margins.

4. Using the Calculator

Tips: Enter each component's typical power draw in watts. Check manufacturer specifications for accurate values. For safety, add 20-30% to the calculated total when selecting a PSU.

5. Frequently Asked Questions (FAQ)

Q1: Why doesn't this include a safety margin?
A: This shows the raw power requirement. Real-world usage should include 20-30% headroom for efficiency and peak loads.

Q2: Where can I find component power ratings?
A: Check manufacturer specifications (TDP for CPUs/GPUs), product documentation, or reputable review sites with power measurements.

Q3: Does this account for overclocking?
A: No. Overclocking significantly increases power draw. Add 20-50% more wattage for overclocked components.

Q4: What about power supply efficiency?
A: This calculation is for system draw. PSU efficiency (80 Plus ratings) affects wall power draw, not component requirements.

Q5: Should I use peak or typical power values?
A: For basic calculation, use TDP or typical power. For precise measurement, consider peak power draws during stress tests.