Business computersENERGY STAR certified
dynabook PORTEGE X40L-M
32 GB notebook computer, model number PZA30*.
Memory
32 GB
Processor
Core Ultra 7
Typical electricity use
11.3 kWh/yr
NPU installed
Yes
Of 980 certified notebook business computers, 282 have a lower typical electricity use than the PORTEGE X40L-M (11.3 kWh/yr).
Its certified typical electricity use of 11.3 kWh/yr costs about $1.47 a year at 13¢/kWh.
ENERGY STAR has certified this model 2 times, first in Aug 2025. The figures here are from the most recent certification.
- Maker
- dynabook
- Model
- PORTEGE X40L-M
- Model number
- PZA30*
- Type
- Notebook
- Processor
- Core Ultra 7
- CPU cores
- 16
- Memory
- 32 GB
- NPU installed
- Yes
- Storage
- SSD
- Screen
- 14 in
- Battery
- 65 Wh
- Operating system
- Windows 11
- Marketed as a workstation
- No
- Typical electricity use
- 11.3 kWh/yr
- Power in sleep
- 0.6 W
- Power at long idle
- 0.6 W
- Power when off
- 0.4 W
- On the market since
- Mar 2024
- ENERGY STAR certified
- 29 Aug 2025
Certified under the same record
The maker lists these as the same machine or a variant of it: PZA31*, PZA32*, PZA33*, PZA34*, PZA35*, PZA36*, PZA37*, PZA3A*, PZA3B*, PZA3C*.
Source: ENERGY STAR certified business computers dataset, US EPA, record 4497591, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the PORTEGE X40L-M
Certified business computers from other makers, same color class, within 20% of its speed.
| Model | Type | Processor | Memory | Typical electricity use |
|---|---|---|---|---|
| HP 16-af | Notebook | Core Ultra 7 | 32 GB | 14.2 kWh/yr |
| Lenovo ThinkBook 16 G7 QOY | Notebook | X126100 | 32 GB | 10.3 kWh/yr |
| Lenovo ThinkBook 16 G7+ AHP | Notebook | Ryzen 7 | 32 GB | 18.5 kWh/yr |
| Lenovo ThinkBook 14 G7+ AHP | Notebook | Ryzen 7 | 32 GB | 16.4 kWh/yr |
| Lenovo IdeaPad Slim 3 15Q8X10 | Notebook | X1P42100 | 32 GB | 13.4 kWh/yr |
| HP OmniBook 7 Laptop AI ENERGY STAR | Notebook | Intel Ultra 9 285H | 32 GB | 16.4 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 |