ENERGY STAR Partner |
Lenovo Group Limited |
Lenovo Group Limited |
Product Category |
Computers |
Computers |
Type |
Notebook |
Notebook |
Brand Name |
Lenovo |
Lenovo |
Model Name |
Lenovo Yoga C940-15IRH |
ThinkPad X12 Detachable Gen 2 |
Model Number |
81TE |
21LK |
Date Available On Market |
September 6, 2019 |
April 19, 2024 |
Date Certified |
April 13, 2020 |
February 26, 2024 |
Markets |
United States, Switzerland, Taiwan, Japan, Canada |
United States, Switzerland, Taiwan, Japan, Canada |
CB Model Identifier |
ES_1037540_81TE_04142020092458_7818727 |
ES_1037540_21LK_02282024143349_8041502 |
Meets ENERGY STAR Most Efficient 2024 Criteria |
No |
No |
Fuel Type |
Notebook |
Notebook |
Touch Screen |
Yes |
Yes |
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 |
Intel |
Category 2: Processor Name |
Core i9-9980H |
CoreTM Ultra 7 164U |
Category 2: Operating System Name |
Windows 10 |
Windows 11 Pro |
Category 2: Base Processor Speed Per Core (GHz) |
2 |
1.1 |
Category 2: Physical CPU Cores (count) |
8 |
12 |
Category 2: System Memory (GB) |
16 |
32 |
Category 2: Default Low-power Mode |
Sleep Mode |
ALPM |
Category 2: Long Idle Power Used for Sleep Mode |
No |
No |
Category 2: Off Mode (watts) |
0 |
0.2 |
Category 2: Sleep Mode (watts) |
2 |
1.6 |
Category 2: Long Idle (watts) |
2 |
1.6 |
Category 2: Short Idle (watts) |
8 |
4.8 |
Category 2: Base TEC Allowance (kWh) |
14 |
14 |
Category 2: Functional Adder Allowances (kWh) |
24 |
19.4 |
Category 2: TEC of Model (kWh) |
31 |
17.9 |
Ethernet Capability |
No |
No |
Sleep Mode Default Time Upon Shipment (min.) |
10 |
5 |
Display Sleep Mode Default Time Upon Shipment (min.) |
10 |
5 |
Will the Speed of Any Active 1 GB/s or Higher Ethernet Network Links be Reduced to Less Than 1 GB/s When Transitioning to Sleep or Off Mode? |
No |
N/A |
Date Qualified |
April 13, 2020 |
February 26, 2024 |