Apalis 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 Apalis T30 and Apalis TK1.
The Apalis Tegras'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.cn, 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.
0034 Apalis TK1 2GB V1.2A
Software version: To be determined
Results
| Test case | Mean Power Consumption [W*] | Max Power Consumption [W] |
|---|---|---|
| Idle | 3.06 | 3.36 |
| Idle after 20 min | 3.31 | 3.48 |
| Stress 1 core | 4.40 | 4.53 |
| Stress 2 core | 5.20 | 5.49 |
| Stress 3 core | 5.82 | 6.17 |
| Stress 4 core | 6.86 | 7.04 |
| Idle (Headless) | 2.44 | 2.68 |
| Headless & Full stress | 5.94 | 6.48 |
| Headless, Full stress and iperf3 ethernet | 6.65 | 7.30 |
| Iperf3 ethernet & Full stress | 7.40 | 7.85 |
| Glmark2 & Full stress | 8.11 | 10.45 |
| HD video & Full stress | 7.26 | 7.74 |
| CPU burn - neo stress script | 4.95 | 5.25 |
| Max stress: full stress, iperf3 ethernet and glmark | 8.43 | 11.46 |
| Suspend | 1.31 | 0.00 |
| RTC after shutdown | 810 µW | |
| RTC after power off | 26 µW |
- Unless explicitly mentioned
0034 Apalis TK1 2GB V1.3A
Software version: To be determined
Results
| Test Case | Average [W] | Maximum [W] |
|---|---|---|
| Idle | 2.76 | 3.01 |
| Idle after 20 min | 2.75 | 3.03 |
| Stress 1 core | 4.05 | 4.15 |
| Stress 2 core | 4.66 | 4.97 |
| Stress 3 core | 5.28 | 5.56 |
| Stress 4 core | 6.16 | 6.28 |
| Headless idle | 2.24 | 2.50 |
| Headless full stress | 5.43 | 5.65 |
| Iperf3 eth full stress | 6.35 | 6.44 |
| Glmark2 full stress | 10.06 | 13.41 |
| HD video full stress | 7.18 | 7.29 |
| CPU burn - neo stress script | 4.64 | 4.68 |
| Max stress | 10.64 | 13.70 |
| Suspend | 1.04 | 1.06 |
Apalis T30 2GB
The power consumption test for Apalis T30 was done in the old format. The following results consider the usage of Ixora board and BSP 2.7
| S.No | Test Case | Power | Power | Power | Power | Power |
|---|---|---|---|---|---|---|
| CPU 2% | One CPU 100% | Two CPU 100% | Three CPU 100% | All CPU 100% | ||
| 1 | Apalis T30 2GB V1.0C + Ixora Carrier Board V1.1A | 12.17V - 3.371W | 12.09V - 4.558W | 12.05V - 5.157W | 11.97V - 6.212W | 11.92V - 6.878W |
| 1 | Apalis T30 2GB V1.0C + Ixora Carrier Board V1.1A + Resistive Touch Display 7" Parallel (Back-light at 100%) | 12.05V - 5.338W | 12.01V - 6.533W | 11.89V - 7.039W | 11.93V - 8.053W | 11.85V - 8.887W |
Additional Resources
Apalis TK1 Page and Datasheet: Apalis TK1
Apalis T30 Page and Datasheet: Apalis T30
Tegra Power Consumption post: Colibri 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)