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A laptop and tablet computer is defined as follows in the ENERGY STAR* 4.0 specification: Laptop and tablet computers are designed for portability and to be operated for extended periods of time without a direct connection to an AC power source. Laptops and tablets must use an integrated monitor and be capable of operation using an integrated battery or other portable power source. Most laptops and tablets use an external power supply and have an integrated keyboard and pointing device, though tablets use touch-sensitive screens. Laptop and tablet computers are typically designed to provide similar functionality to desktops within a portable device. For the purposes of this specification, docking stations are considered accessories and therefore, the performance levels associated with laptops presented in Table 1 of Section 3, below, do not include them. Laptop categories for idle criteria: For the purposes of determining idle state levels, laptops and tablets must qualify under Categories A or B as defined below: Category A: All laptop computers that do not meet the definition of Category B below will be considered under Category A for ENERGY STAR qualification. Category B: To qualify under Category B laptops must have a GPU with a minimum of 128 megabytes of dedicated, non-shared memory. |
| Laptops and tablets |
| Standby (Off Mode): < 1.0 W Sleep mode: < 1.7 W Idle State: Category A: < 14.0 W Category B: < 22.0 W |
ENERGY STAR documentation
ENERGY STAR* System Implementation Whitepaper (PDF 1.01MB)
ENERGY STAR* 4.0 Specification (PDF 744MB)
ENERGY STAR* 5.0 Specification (PDF 1.09MB)
ENERGY STAR web sites
ENERGY STAR*
80 PLUS* power supplies
ENERGY STAR* Intel® tested power supply list