GB28380-2025
Minimum allowable values of energy efficiency and energy grades for microcomputers
微型计算机能效限定值及能效等级
GB 28380-2025 is a current mandatory Chinese national standard for Minimum allowable values of energy efficiency and energy grades for microcomputers. It appears in the Construction compliance cluster with a energy efficiency focus and has an implementation date of Feb 1, 2026.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to general-purpose microcomputers, including desktops, all-in-one PCs, and portable computers. It is mandatory for manufacturers targeting the Chinese market. The standard explicitly excludes tablet computers, workstations, industrial computers, and systems with multiple independent displays or power supplies exceeding 500W. It references GB/T 9813.1 and GB/T 9813.2 for terminology.
Technical requirements
The standard classifies microcomputers into specific categories based on their configuration, such as integrated or discrete display units, and CPU specifications. Manufacturers must ensure their products meet the minimum allowable values (Tier 3 limits) to be legally sold. It introduces the concept of Typical Energy Consumption (TEC), which calculates annual energy use based on power consumption across different operational states. The standard distinguishes between CPUs with a transistor density greater than 30Mtr/mm² and those manufactured with non-EUV equipment, applying different TEC limits to each. Additionally, the standard defines various power states, including off mode, sleep mode, long idle, short idle, and the newly introduced Alternative Low Power Mode (ALPM). It also specifies additional function power factors for components like memory, discrete graphics, and network interfaces, which are added to the base TEC calculation.
Testing methods
Testing must be conducted under specific environmental conditions (15°C-35°C, 25%-75% relative humidity) using precise power meters. The procedure involves measuring power consumption in off mode, sleep mode, long idle (or ALPM), and short idle states. Accurate measurement of display brightness in a dark room is required for specific states. The methodology aligns with international practices, referencing IEC 62623:2022.
FAQs
What products are regulated under GB 28380-2025?
It regulates general-purpose desktops, all-in-one PCs, and portable microcomputers. It excludes tablets, workstations, and industrial computers.
Are there any updates from the previous version of GB 28380?
Yes, the 2025 version introduces definitions for tablets, long/short idle, and ALPM. It also updates the classification and TEC calculation methods, removing the 'energy-saving evaluation value'.
How does GB 28380-2025 differ from international standards?
While it aligns with methodologies from IEC 62623 and ENERGY STAR, it sets specific TEC limits and additional function power factors tailored to the Chinese market, with distinct requirements based on CPU transistor density.
The summary above provides a high-level overview of GB 28380-2025. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 28380-2025 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Management
- CCS
- F01
- ICS
- 27.010
- Competent department
- Standardization Administration of China
- Technical committee
- National Technical Committee on Energy Fundamentals and Management of Standardization Administration of China
Relationships
Replaces:GB 28380-2012