The Energy Delay Product (EDP) Calculator helps you evaluate how efficiently a digital system, such as a microprocessor or logic circuit, performs operations. EDP combines two critical metrics—energy and time—into one value to highlight trade-offs between power usage and speed. Engineers use this metric to optimize both performance and energy efficiency in system designs.
This calculator falls under the Semiconductor and Performance Analysis Calculators category. It provides valuable insights into the energy-performance tradeoff, especially in mobile devices, CPUs, embedded systems, and low-power electronics.
Formula of Energy Delay Product Calculator
Energy Delay Product (EDP)
EDP = Energy × Delay
Where:
- Energy is the amount of power consumed over time (in joules)
- Delay is the time taken to complete the operation (in seconds)
Energy Definition
Energy = Power × Time
You must calculate or know the energy consumption before finding EDP.
- Power is the rate of energy use (watts)
- Time is the duration of the operation (seconds)
Reference Table
| Power (W) | Time (s) | Energy (J) | Delay (s) | EDP (J·s) |
|---|---|---|---|---|
| 0.5 | 2 | 1.0 | 2 | 2.0 |
| 1.0 | 1 | 1.0 | 1 | 1.0 |
| 2.0 | 1 | 2.0 | 1 | 2.0 |
| 0.2 | 5 | 1.0 | 5 | 5.0 |
| 0.8 | 2 | 1.6 | 2 | 3.2 |
This table shows how different power and time values affect both energy and EDP.
Example of Energy Delay Product Calculator
You have a system that consumes 1.2 watts for 2 seconds, and the operation takes 2 seconds to complete. What is the Energy Delay Product?
- Calculate Energy:
Energy = 1.2 × 2 = 2.4 joules - Apply EDP formula:
EDP = 2.4 × 2 = 4.8 J·s
The EDP for this operation is 4.8 joule-seconds.
Most Common FAQs
It means the system is more energy-efficient and performs faster.
Yes, as long as the measurements use the same tasks and conditions.
Yes. Engineers use it to balance energy consumption and performance, especially in mobile and embedded systems.