| ENERGY STAR Partner |
| Microsoft Corporation |
Microsoft Corporation |
| Product Category |
| Computers |
Computers |
| Type |
| Notebook |
Slate/Tablet |
| Brand Name |
| Microsoft |
Microsoft |
| Model Name |
| Surface Laptop 4 |
Surface Pro X |
| Model Number |
| 1,951 |
1876 |
| Additional Model Information |
| ,1950, |
N/A |
| Date Available On Market |
| April 13, 2021 |
November 7, 2019 |
| Date Certified |
| January 15, 2021 |
December 23, 2019 |
| Markets |
| United States, Switzerland, Taiwan, Japan, Canada |
United States, Switzerland, Taiwan, Japan, Canada |
| CB Model Identifier |
| ES_21335_1951_01182021114441_9322109 |
ES_21335_1876_01272020211714_9834332 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
| Fuel Type |
| Notebook |
Slate/Tablet |
| Touch Screen |
| Yes |
No |
| Notebooks, Desktops, Integrated Computers, Slate/Tablets, Two-in-one Notebooks, and Portable All-in-ones Category for TEC (Typical Energy Consumption) Criteria |
| 2 |
2 |
| Category 2: Processor Brand |
| Intel |
N/A |
| Category 2: Processor Name |
| Core i7 |
Qualcomm Snapdragon SQ1 |
| Category 2: Operating System Name |
| Windows 10 |
Windows 10 |
| Category 2: Base Processor Speed Per Core (GHz) |
| 3 |
3 |
| Category 2: Physical CPU Cores (count) |
| 4 |
8 |
| Category 2: System Memory (GB) |
| 32 |
16 |
| Category 2: Default Low-power Mode |
| ALPM |
Alternative Low Mode |
| Category 2: Long Idle Power Used for Sleep Mode |
| No |
Yes |
| Category 2: Off Mode (watts) |
| 0 |
0.3 |
| Category 2: Sleep Mode (watts) |
| 1 |
1.2 |
| Category 2: Long Idle (watts) |
| 1 |
1.2 |
| Category 2: Short Idle (watts) |
| 3 |
2.9 |
| Category 2: Base TEC Allowance (kWh) |
| 14 |
14 |
| Category 2: Functional Adder Allowances (kWh) |
| 22 |
22.8 |
| Category 2: TEC of Model (kWh) |
| 12 |
13.1 |
| Ethernet Capability |
| No |
No |
| Sleep Mode Default Time Upon Shipment (min.) |
| 10 |
30 |
| Display Sleep Mode Default Time Upon Shipment (min.) |
| 10 |
10 |
| Date Qualified |
| January 15, 2021 |
December 23, 2019 |
