dynabook computer, ENERGY STAR certified
dynabook TECRA A45-M
64 GB notebook computer, model number BHM13U.
Memory
64 GB
Processor
Ryzen 7 Pro 250
Typical electricity use
15.1 kWh/yr
NPU installed
No
Of 980 certified notebook business computers, 655 have a lower typical electricity use than the TECRA A45-M (15.1 kWh/yr).
Its certified typical electricity use of 15.1 kWh/yr costs about $1.96 a year at 13¢/kWh.
- Maker
- dynabook
- Model
- TECRA A45-M
- Model number
- BHM13U
- Type
- Notebook
- Processor
- Ryzen 7 Pro 250
- CPU cores
- 8
- Memory
- 64 GB
- NPU installed
- No
- Storage
- Solid State Drive
- Screen
- 14 in
- Battery
- 60.1 Wh
- Operating system
- Windows 11
- Marketed as a workstation
- No
- Typical electricity use
- 15.1 kWh/yr
- Power in sleep
- 1 W
- Power at long idle
- 1 W
- Power when off
- 0.2 W
- On the market since
- Aug 2025
- ENERGY STAR certified
- 27 Aug 2025
Certified under the same record
The maker lists these as the same machine or a variant of it: BHM10*, BHM11*, BHM12*, BHM13* (* = any alphanumeric character, symbol or blank).
Source: ENERGY STAR certified business computers dataset, US EPA, record 4497547, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the TECRA A45-M
Certified business computers from other makers, same color class, within 20% of its speed.
| Model | Type | Processor | Memory | Typical electricity use |
|---|---|---|---|---|
| HP HSN-I62C-3 | Notebook | Core Ultra 7 | 64 GB | 10.6 kWh/yr |
| HP HSN-I62C | Notebook | Core Ultra 7 | 64 GB | 11 kWh/yr |
| HP HSN-I62C-6 | Notebook | Core Ultra 9 | 64 GB | 19.8 kWh/yr |
| HP HSN-I62C-4 | Notebook | Core Ultra 9 | 64 GB | 15.6 kWh/yr |
| HP HSN-Q38C-4 | Notebook | Core Ultra 7 | 64 GB | 19.1 kWh/yr |
| HP HSN-Q38C | Notebook | Core Ultra 7 | 64 GB | 19.3 kWh/yr |
dynabook
More dynabook business computers
| Model | Type | Processor | Memory | Typical electricity use |
|---|---|---|---|---|
| PORTEGE E40L-Q | Notebook | Core 7 360 | 32 GB | 9.9 kWh/yr |
| TECRA A60-P | Notebook | Core Ultra 7 365 | 64 GB | 12.1 kWh/yr |
| TECRA A40-P | Notebook | Core Ultra 7 365 | 64 GB | 11.5 kWh/yr |
| PORTEGE Z40L-P | Notebook | Core Ultra X9 388H | 64 GB | 10.3 kWh/yr |
| PORTEGE X30L-P | Notebook | Core Ultra 7 | 64 GB | 9.9 kWh/yr |
| PORTEGE X45W-M | Notebook | Ryzen 7 Pro 250 | 64 GB | 19.4 kWh/yr |
| SATELLITE PRO C50-K | Notebook | Core i3 | 32 GB | 17.6 kWh/yr |
| SATELLITE PRO C30-K | Notebook | Core i3, Core i7 | 32 GB | 13.3 kWh/yr |