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Dynabook Portégé X40-K


Dynabook Portégé X40-K
Dynabook Portégé X40-K (Portégé X40 Series)
Intel Core i7-1260P 12 x 1.5 - 4.7 GHz, 39 W PL2 / Short Burst, 28 W PL1 / Sustained, Alder Lake-P
Graphics adapter
Intel Iris Xe Graphics G7 96EUs, Core: 1400 MHz, Memory: 2667 MHz, DDR4,
16 GB 
, Samsung DDR4-3200, 19-19-19-43, Single-Channel (2x SODIMM)
14.00 inch 16:9, 1920 x 1080 pixel 157 PPI, Chi Mei N140HCA-EAC, IPS, CMN14D4, glossy: no, 60 Hz
Intel Alder Lake-P PCH
Samsung PM991 MZVLQ512HBLU, 512 GB 
Intel Alder Lake-P PCH - cAVS (Audio, Voice, Speech)
4 USB 3.0 / 3.1 Gen1, 4 USB 3.1 Gen2, 2 Thunderbolt, USB-C Power Delivery (PD), 1 HDMI, 2 DisplayPort, 1 Kensington Lock, Audio Connections: 3.5 mm combo, Card Reader: MicroSD
Intel Ethernet Connection I219-V (10/100/1000MBit/s), Intel Wi-Fi 6E AX211 (a/b/g/h/n = Wi-Fi 4/ac = Wi-Fi 5/ax = Wi-Fi 6/ Wi-Fi 6E 6 GHz), Bluetooth 5.2
height x width x depth (in mm): 17.9 x 323.6 x 220.6 ( = 0.7 x 12.74 x 8.69 in)
53 Wh Lithium-Polymer
Operating System
Microsoft Windows 11 Pro
Webcam: 720p
Primary Camera: 0.9 MPix
Additional features
Speakers: Stereo DTS, Keyboard: Chiclet, Keyboard Light: yes, Dynabook Settings, 36 Months Warranty
1.477 kg ( = 52.1 oz / 3.26 pounds), Power Supply: 309 g ( = 10.9 oz / 0.68 pounds)
1450 USD



Average Score: 74.77% - average
Average of 3 scores (from 5 reviews)
price: - %, performance: 79%, features: 69%, display: 78% mobility: 78%, workmanship: 81%, ergonomy: 77%, emissions: 96%

Reviews for the Dynabook Portégé X40-K

84.3% Dynabook Portégé X40-K review: Premium laptop with a budget display | Notebookcheck
The Portege X40-K is the company's premium business laptop retailing for over $1400 USD and yet it comes with a display that's found on budget laptops for almost half the price. The model could certainly use more updates beyond just the new 12th gen CPU.
70% Dynabook Portege X40-K review (2022)
Source: Laptop Mag English
If you’re a mobile professional looking to outfit your team with a solid, durable laptop that looks good and gets the job done, the Dynabook Portege X40-K is a solid choice for your mobile productivity employees. Thanks to its Core i7 processor, it serves up a good performance and its lightweight chassis makes working on the go a seamless, easy experience. And we’re never going to say no to a comfortable keyboard. However, for the price. I’d expect a display with better brightness and color accuracy as well as a faster SSD and slightly longer battery life. And if you do a lot of video conference calls, you’re going to need to purchase an external webcam. If those things are important, we’d recommend taking a hard look at the Dell Latitude 9420 2-in-1, which is available for $1,459 on Amazon(opens in new tab). Overall, the Dynabook Portege X40K is a solid business travelers’ laptop meant for document pushers who need all-day battery life and a lightweight, easy-on-the-eyes system that will keep up with most workflows on the go.
Single Review, online available, Medium, Date: 02/27/2023
Rating: Total score: 70%
Dynabook Portege X40 Review: More memory for more productivity
Source: On MSFT English
The Protege X40 is meant for data workers and as such the paltry Iris Xe graphics are great for short burst of GPU heavy lifting in specific applications but is not great for gaming or content editing. With Intel's i7, 12 cores and up to 64GB or memory, users will be choosing to fly through macros-laden Excel docs, excessively large PDFs, multi-gigabyte PowerPoint presentations and several opened Edge and Chrome instances with multiple open tabs, over playing the latest AAA game.
Single Review, online available, Medium, Date: 08/31/2022
70% Dynabook Portégé X40-K review: This laptop shines like a sapphire
Source: PC World English
On the whole, Dynabook’s Portégé X40 is a solid pick for a business PC. However you define work, this blue laptop has plenty of oomph to take care of your business. Its solid build quality, fast i7 chip, plentiful ports, and three year standard on-site repair warranty tip this over the edge, making it a package worth considering. Whether it’s a tax write off for your side hustle or an upgrade for your business, the X40 should stay capable for at least the three years it’s covered by the standard warranty, giving you great peace of mind up front.
Single Review, online available, Long, Date: 08/29/2022
Rating: Total score: 70%

Foreign Reviews

Source: PC Welt German DE→EN
Single Review, online available, Medium, Date: 02/20/2023
Recenzja Dynabook Portégé X40L. Niepozorny i bardzo przydatny
Source: GeekWeek Turkish PL→EN
Positive: Slim size; light weight; stylish design; great speakers; high performance. Negative: Mediocre touchpad; high price.
Single Review, online available, Short, Date: 03/24/2023


Intel Iris Xe G7 96EUs: Integrated graphics card in Intel Tiger Lake G4 SoCs based on the new Gen. 12 architecture with 96 EUs (Execution Units / Shader Cluster). The clock rate depends on the processor model. The Tiger Lake chips are produced in the modern 10nm+ process at Intel.

Modern games should be playable with these graphics cards at low settings and resolutions. Casual gamers may be happy with these cards.

» Further information can be found in our Comparison of Mobile Graphics Cards and the corresponding Benchmark List.

i7-1260P: An upper mid-range Alder Lake family CPU featuring 4 performance cores and 8 efficient cores. This 28 W SoC is designed for use in ultra-light (yet actively cooled) laptops. Core i7-1260P's performance cores are Hyper-Threading-enabled for a total of 16 threads. This 12th Gen CPU runs at 1.5 GHz to 4.7 GHz and supports "Essentials" tier vPro features. Last but not the least, Core i7-1260P has a built-in 96 EU Iris Xe GPU, not unlike certain 11th Gen Tiger Lake-UP3 processors.» Further information can be found in our Comparison of Mobile Processsors.


There are hardly any tablets in this display size range anymore. For subnotebooks, on the other hand, it is the standard format.

The advantage of subnotebooks is that the entire laptop can be small and therefore easily portable. The smaller display also has the advantage of requiring less power, which further improves battery life and thus mobility. The disadvantage is that reading texts is more strenuous on the eyes. High resolutions are more likely to be found in standard laptops.

» To find out how fine a display is, see our DPI List.

74.77%: This rating is poor. More than three quarters of the models are rated better. That is rather not a purchase recommendation. Even if verbal ratings in this area do not sound that bad ("sufficient" or "satisfactory"), they are usually euphemisms that disguise a classification as a below-average laptop.

» Further information can be found in our Notebook Purchase Guide.


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> Notebook / Laptop Reviews and News > Library > Dynabook Portégé X40-K
Stefan Hinum (Update: 2022-09-22)