Colibri Tegra Power Consumption
Overview
This is one of a series of posts about Toradex modules' power consumption measurements. This article provides information about the power consumption of Colibri T20 and Colibri T30.
The Colibri Txx's power consumption depends on the devices connected to it. Below are the power consumption results of several test cases, demonstrating realistic system configurations at various CPU loads.
The power consumption is subject to variation, depending on the specific demand of your application, for example, the load, CPU stress, connected peripherals, and temperature. In toradex.com, our minimum and maximum power consumption estimation is based on the lowest idle power consumption and the highest power consumption values during maximum load on our tests.
Disclaimer
Toradex tests its modules following internal protocols as a way of standardizing the results. The overall power consumption of each module depends on multiple factors, such as:
- Environmental temperature
- Particular Silicon Revision of the SoC
- Versions of the Software Components installed on the module
- Use cases
The following results were achieved by simulating an ideal scenario. Applications in different conditions may not achieve the exact same results. It is suggested that a customer measures its SoM's power consumption under its own particular use cases before designing hardware based on this data.
Testing Conditions
- The tests were performed using 3 different modules of each model.
- The provided data is the average of the results obtained for each module group.
- All of the SoMs were heated up first (using a stress test) to simulate the conditions of a continuous use scenario.
Colibri T20 512MB with Viola
The power consumption test for Colibri T20 was done in the old format. The following results consider the usage of Viola board and BSP 2.7.
| S.No | Test Case | Power | Power | Power |
|---|---|---|---|---|
| CPU 2% | One CPU 100% | Both CPU 100% | ||
| 1 | Colibri T20 512MB V1.2A + Plus Viola 1.1A Carrier Board | 4.80V - 1.162W | 4.72V - 1.510W | 4.67V - 1.751W |
Colibri T20 512MB IT with Viola
The power consumption test for Colibri T20 was done in the old format. The following results consider the usage of Viola board and BSP 2.7.
| S.No | Test Case | Power | Power | Power |
|---|---|---|---|---|
| CPU 2% | One CPU 100% | Both CPU 100% | ||
| 1 | Colibri T20 512MB IT V1.2A + Plus Viola 1.1A Carrier Board | 4.85V - 1.082W | 4.78V - 1.410W | 4.74V - 1.649W |
0023 Colibri T30 1GB V1.2A
Software version: To be determined
Results
| Test Case | Average [W] | Maximum [W] |
|---|---|---|
| Idle | 0.83 | 1.24 |
| Idle after 20 min | 0.83 | 1.17 |
| Stress 1 core | 2.40 | 2.46 |
| Stress 2 core | 3.02 | 3.08 |
| Stress 3 core | 3.45 | 3.54 |
| Stress 4 core | 4.07 | 4.14 |
| Idle (headless) | 0.75 | 1.13 |
| Headless full stress | 3.88 | 3.95 |
| Iperf3 eth full stress | 4.06 | 4.14 |
| Glmark2 full stress | 4.47 | 6.15 |
| HD video full stress | 4.55 | 4.90 |
| CPUburn-neo | 3.35 | 3.58 |
| Max stress | 4.68 | 5.79 |
| Suspend | 0.35 | 0.37 |
0030 Colibri T30 1GB IT V1.2A
Software version: To be determined
Results
| Test Case | Average [W] | Maximum [W] |
|---|---|---|
| Idling mode with screen | 0.90 | 1.20 |
| Idling without screen | 0.89 | 1.19 |
| Stress 1 cores | 2.41 | 2.50 |
| Stress 2 cores | 2.96 | 3.04 |
| Stress 3 cores | 3.61 | 3.75 |
| Stress 4 cores | 3.98 | 4.16 |
| CPU stress with iperf3 eth | 4.30 | 4.96 |
| All cores stressed and glmark2 | 4.96 | 5.91 |
| Glmark2 | 2.21 | 3.42 |
| Max stress: all cores stressed, glmark2 ,iperf3 ethernet | 4.71 | 5.74 |
| Iperf3 ethernet no screen | 1.26 | 2.04 |
| Suspend | 0.39 | 0.00 |
| CPU stress + video decoding | 4.29 | 4.70 |
| RTC clock (proper shutdown) | 171uW | 178uW |
| RTC clock (power cable removing shutdown ) | 197uW | 211uW |
Additional Resources
Colibri T20 Page and Datasheet: Colibri T20
Colibri T30 Page and Datasheet: Colibri T30
Tegra Power Consumption post: Apalis Tegra Power Consumption
Specifications and Design Guides: Carrier Board Design Guides
Thermal Management in Toradex Modules: Thermal Management
How to Suspend Your Module Running Linux: Suspend/Resume (Linux)