ZoomPhoto 1 of 1Dynabook
Dynabook Portégé Z40L-P
Dynabook's 14-inch magnesium-alloy Copilot+ business laptop, shown here with the top Core Ultra X9 388H, Arc Pro B390 graphics, 64 GB of memory and 2 TB of storage; Core Ultra X7, 7 and 5 options also exist. It has a user-replaceable 56 Wh battery. Pricing starts at $2,170.
Pros
- Core Ultra X9 388H with 16 cores and Arc Pro B390 graphics of up to 12 Xe cores, aimed at light CAD and engineering work
- Up to 64 GB of LPDDR5x memory and 2 TB of PCIe NVMe storage
- User-accessible, replaceable 56 Wh battery
- Two Thunderbolt 4 ports, HDMI 2.1, RJ-45 Ethernet, microSD and Intel Wi-Fi 7
- 5MP webcam with IR camera and privacy shutter, plus fingerprint reader and Human Presence Detection
Cons
- The $2,170 starting price is for a lower-tier configuration; the 64 GB / 2 TB X9 build is priced far higher by resellers
- Weight and thickness are not stated in Dynabook's announcement
- Battery is 56 Wh, and no measured runtime has been published
- Memory is LPDDR5x, so upgrade options are limited by the platform
Average
Computed from specs & benchmarks via our public methodology.
Performance uses the published results of the Intel Core Ultra X9 388H, because we have no benchmark result for this device itself yet.
Full specifications
Everything we track for the Dynabook Portégé Z40L-P
Display
- Screen size
- 14 ″
- Resolution
- 1920x1200
Performance
- Processor
- Intel Core Ultra X9 388H
- Graphics
- Intel Arc Pro B390 (up to 12 Xe cores)
- RAM
- 64 GB
- RAM type
- LPDDR5x
- Storage
- 2,048 GB
- Storage type
- PCIe NVMe SSD
Battery
- Capacity
- 56 Wh
Design
- Material
- Magnesium alloy chassis
Connectivity
- Ports
- 2x USB-C with Thunderbolt 4, 2x USB 3.2 Gen 1 Type-A, HDMI 2.1, RJ-45 Ethernet, headset jack, microSD card slot, security lock slot
- Wi-Fi
- Intel Wi-Fi 7
- Webcam
- 5MP webcam with IR camera and privacy shutter
- Biometrics
- Fingerprint reader and IR face recognition (Windows Hello)
Software
- Operating system
- Windows 11 (Copilot+ PC)
Quick answers
Is the Dynabook Portégé Z40L-P good in 2026?
The Dynabook Portégé Z40L-P earns an Inno Score of 56.4/100 (“Average”) based on its specs and benchmark results. Dynabook's 14-inch magnesium-alloy Copilot+ business laptop, shown here with the top Core Ultra X9 388H, Arc Pro B390 graphics, 64 GB of memory and 2 TB of storage; Core Ultra X7, 7 and 5 options also exist. It has a user-replaceable 56 Wh battery. Pricing starts at $2,170.
What are the key specs of the Dynabook Portégé Z40L-P?
Processor: Intel Core Ultra X9 388H · RAM: 64 GB · Screen size: 14 ″
What are the closest alternatives to the Dynabook Portégé Z40L-P?
Its closest rivals on InnoReviews are Acer Predator Helios Neo 16 AI (PHN16-73), Microsoft Surface Laptop 15-inch (8th Edition), ThinkPad X1 Carbon Gen 14 Aura Edition — open the comparison pages for a spec-by-spec breakdown.
