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.
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:
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.
Warning: 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 |
Warning: 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 |
Software version: To be determined
| 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 |
Software version: To be determined
| 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 |
Colibri T20 Page and Datasheet: Colibri T20
Colibri T30 Page and Datasheet: Colibri T30
Tegra Power Consumption post: 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)
