Power and Thermal Calculator User Guide

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ID 683445
Date 5/08/2025
Public
Document Table of Contents
Document Table of Contents x
Answers to Top FAQs 1. Overview of the Power and Thermal Calculator 2. Estimating Power Consumption with the Power and Thermal Calculator 3. Power and Thermal Calculator Graphical User Interface 4. Power and Thermal Calculator Pages 5. Factors Affecting the Accuracy of the PTC 6. Power and Thermal Calculator User Guide Archive 7. Document Revision History for the Power and Thermal Calculator User Guide A. Measuring Static Power
1. Overview of the Power and Thermal Calculator x
1.1. Accessing the Power and Thermal Calculators 1.2. PTC Power Model Status 1.3. Definitions of Power Terms Used in this Document
2. Estimating Power Consumption with the Power and Thermal Calculator x
2.1. Estimating Power Before Starting the FPGA Design 2.2. Estimating Power While Creating the FPGA Design 2.3. Estimating Power After Completing the FPGA Design 2.4. Estimating Power for Dual-Core Devices
2.2. Estimating Power While Creating the FPGA Design x
2.2.1. Importing a .qptc File Generated in the Quartus® Prime Power Analyzer
3. Power and Thermal Calculator Graphical User Interface x
3.1. PTC Select Family Dialog Box 3.2. PTC Primary GUI Components 3.3. PTC - IP Wizard 3.4. PTC Searchable Drop-Down Lists 3.5. Deleting Rows from Data Entry Pages 3.6. Finding Resources Using the Find Dialog Box
3.2. PTC Primary GUI Components x
3.2.1. PTC Data Entry Pages 3.2.2. PTC Design Hierarchy 3.2.3. PTC IP Power Summary 3.2.4. PTC Field Types 3.2.5. PTC Data Entry Error Messages
3.2.2. PTC Design Hierarchy x
3.2.2.1. Using Design Hierarchies in the Power and Thermal Calculator (PTC) 3.2.2.2. Entering Hierarchy Information Into the PTC 3.2.2.3. Exporting, Importing, Duplicating, Renaming, and Deleting Hierarchies in the PTC 3.2.2.4. Bulk Editing Hierarchies in the PTC
3.2.4. PTC Field Types x
3.2.4.1. PTC Input Field Dependencies
4. Power and Thermal Calculator Pages x
4.1. PTC - Power Summary/Navigation 4.2. PTC - Common Page Elements 4.3. PTC - Main Page 4.4. PTC - Logic Page 4.5. PTC - RAM Page 4.6. PTC - DSP Page 4.7. PTC - Clock Page 4.8. PTC - PLL Page 4.9. PTC - I/O Page 4.10. PTC - Transceiver Page 4.11. PTC - HPS Page 4.12. PTC - Crypto Page 4.13. PTC - NOC Page 4.14. PTC - HBM Page 4.15. PTC - Thermal Page 4.16. PTC - Report Page
4.3. PTC - Main Page x
4.3.1. PTC - Device Selection and Thermal Analysis Windows
4.10. PTC - Transceiver Page x
4.10.1. Estimating E-Tile Channel PLL Power with the Power and Thermal Calculator
5. Factors Affecting the Accuracy of the PTC x
5.1. Toggle Rate 5.2. I/O Bank Allocation
Answers to Top FAQs
1. Overview of the Power and Thermal Calculator
2. Estimating Power Consumption with the Power and Thermal Calculator
3. Power and Thermal Calculator Graphical User Interface
4. Power and Thermal Calculator Pages
5. Factors Affecting the Accuracy of the PTC
6. Power and Thermal Calculator User Guide Archive
7. Document Revision History for the Power and Thermal Calculator User Guide
A. Measuring Static Power

1.2. PTC Power Model Status

The Power and Thermal Calculator (PTC) uses a device power model to calculate estimated power consumption and thermal assessments. Depending on the maturity of the device, the power models in the current version of the PTC may be in advance, preliminary, or final status. The status of the power models relate to the accuracy of the estimated results.

The Main page of the PTC shows the current power model status for the target device:

  • Advance power models— based on simulation results, process model projections, and design targets. Advance power models may change over time.
  • Preliminary power models—include post-layout simulation results, process data, and initial silicon correlation results. Preliminary power models may change over time.
  • Final power models—correlate to production devices with thousands of designs, and are not expected to change.

The accuracy of the power model is determined on a per-power-rail basis for the PTC.

  • For most Stratix® 10 designs, the Power and Thermal Calculator has the following accuracy, assuming final power models: Within 15% of silicon for the majority of power rails with higher power, assuming accurate inputs and toggle rates.
  • For most Agilex™ FPGA portfolio designs, the PTC has the following accuracy, assuming final power models: Within 10% of silicon for all power rails, assuming accurate inputs and toggle rates.

For more information about power model accuracy in the Quartus® Prime Power Analyzer, refer to the Quartus® Prime Pro Edition User Guide: Power Analysis and Optimization.

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