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Lenovo ThinkPad T400 reviews
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Compare Lenovo ThinkPad T400 reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.
Manufacturer codeNM7PTUK
The product, explained
About the Lenovo ThinkPad T400
Lenovo NM7PTUK is listed in the laptops category. The recorded specifications include display diagonal: 35.8 cm (14.1"); processor family: Intel® Core™2 Duo; internal memory: 2 GB; total storage capacity: 250 GB. This entry covers manufacturer code NM7PTUK. Specifications relate to this exact source record; other editions or packages may differ.
The 35.8 cm (14.1") display is specified at 1280 x 800 pixels. Consider these together: a larger screen provides more physical space, while resolution determines the number of pixels available. Neither specification establishes brightness, colour accuracy or motion quality.
This configuration lists 2 GB of memory and 250 GB of storage. Memory supports active applications; storage holds software and files. Check upgradeability separately, because a capacity figure does not establish whether either component can be replaced.
- Screen size
- 35.8 cm (14.1")
- Screen resolution
- 1280 x 800 pixels
- Processor family
- Intel® Core™2 Duo
- Processor model
- P8400
- Memory (RAM)
- 2 GB
- Total storage capacity
- 250 GB
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Before choosing the Lenovo ThinkPad T400
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Independent perspectives
Expert reviews 0
Independent ratings, converted to the same five-point scale. Each card links to the original review and identifies the available evidence.
No scored critic reviews have been imported for this exact product yet. It remains unrated.
Independent reviews, made comparable
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Read our scoring methodology →Scale conversion · example
8/ 104.00/ 5
An illustration of conversion, not this product’s rating.
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Convert usable ratings to five points, count each publisher once and give each critic equal weight.
Require three critics
Show the average to two decimal places after three distinct critics. Otherwise display tbd, keeping individual reviews visible.
Find the best fit by considering the score alongside the critic count, review dates, tested version and the strengths that matter to you. Eligible model-level reviews identify the tested configuration. Reviews of different hardware are shown separately and do not enter this product’s COR Score.
Know exactly what you’re buying
Lenovo ThinkPad T400 specifications
Manufacturer code: NM7PTUK · Icecat product 3330133 · Checked 26 Sep 2026. Specifications belong to this exact model.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Screen size | 35.8 cm (14.1") |
|---|---|
| Screen resolution | 1280 x 800 pixels |
| Processor family | Intel® Core™2 Duo |
| Processor model | P8400 |
| Memory (RAM) | 2 GB |
| Total storage capacity | 250 GB |
| Operating system installed | Windows Vista Business |
| Discrete graphics card model | Intel® GMA 4500MHD |
| Weight | 2.38 kg |
More product specifications
Open a section for the details that matter to you.
Audio & listening5 details
| Audio system | High Definition Audio |
|---|---|
| Number of built-in speakers | 2 |
| Speaker power | 2 W |
| Headphone outputs | 1 |
| Microphone in | Yes |
Display1 detail
| Intel Dual Display Capable Technology | No |
|---|
Processor, memory & storage28 details
| Processor manufacturer | Intel |
|---|---|
| Processor cores | 2 |
| Processor threads | 2 |
| Processor frequency | 2.26 GHz |
| Processor cache | 3 MB |
| Processor cache type | L2 |
| Processor front side bus | 1066 MHz |
| Processor socket | Socket 478 |
| Processor lithography | 45 nm |
| Processor operating modes | 64-bit |
| Processor series | Intel Core 2 Duo P8000 Series |
| Processor codename | Penryn |
| ECC supported by processor | No |
| Internal memory type | DDR3-SDRAM |
| Memory clock speed | 1066 MHz |
| Memory layout (slots x size) | 1 x 2 GB |
| Memory slots | 2x SO-DIMM |
| Maximum internal memory | 4 GB |
| HDD speed | 5400 RPM |
| Card reader integrated | Yes |
| Compatible memory cards | MMC, MS Pro, SD, SDHC, xD |
| Discrete graphics card | Yes |
| Processor package size | 35 x 35 mm |
| Processor code | SL3BU |
| Intel Rapid Storage Technology | No |
| Processor ARK ID | 35569 |
| Conflict-Free processor | No |
| HDD user password | Yes |
Camera, image & video4 details
| Intel® Clear Video HD Technology (Intel® CVT HD) | No |
|---|---|
| Intel Clear Video Technology | No |
| Intel® Quick Sync Video Technology | No |
| Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID) | No |
Printing, scanning & paper1 detail
| Fingerprint reader | Yes |
|---|
Connections & wireless16 details
| HDD interface | SATA |
|---|---|
| Networking features | Gigabit Ethernet |
| Wireless technology | IEEE 802.11a/g/n |
| Bluetooth | Yes |
| USB 2.0 ports quantity | 3 |
| Ethernet LAN (RJ-45) ports | 1 |
| DVI port | No |
| VGA (D-Sub) ports quantity | 1 |
| Firewire (IEEE 1394) ports | 1 |
| S/PDIF out port | No |
| Docking connector | Yes |
| Modem (RJ-11) ports | 1 |
| TV-in port | No |
| Intel® Wireless Display (Intel® WiDi) | No |
| DC-in jack | Yes |
| Infrared data port | No |
Power & battery3 details
| Number of battery cells | 6 |
|---|---|
| Maximum stated battery life | 6.6 h |
| Supplied AC adapter type | AC |
Controls & features1 detail
| SmartCard slot | Yes |
|---|
Design & dimensions5 details
| Product type | Laptop |
|---|---|
| Thermal Design Power (TDP) | 25 W |
| Width | 335.5 mm |
| Depth | 238 mm |
| Height | 32 mm |
Further product details41 details
| Native aspect ratio | 16:10 |
|---|---|
| Bus type | FSB |
| FSB Parity | No |
| Stepping | M0 |
| Tjunction | 105 °C |
| Number of Processing Die Transistors | 410 M |
| Processing Die size | 107 mm² |
| CPU multiplier (bus/core ratio) | 8.5 |
| Optical drive type | DVD±RW |
| ExpressCard slot | Yes |
| CardBus PCMCIA slot type | No |
| TV-out | No |
| Pointing device | ThinkPad UltraNav |
| Intel® My WiFi Technology (Intel® MWT) | No |
| Intel® Anti-Theft Technology (Intel® AT) | No |
| Intel® Hyper Threading Technology (Intel® HT Technology) | No |
| Intel® Turbo Boost Technology | No |
| Enhanced Intel SpeedStep Technology | Yes |
| Intel® InTru™ 3D Technology | No |
| Intel® Insider™ | No |
| Intel Flex Memory Access | No |
| Intel® AES New Instructions (Intel® AES-NI) | No |
| Intel Trusted Execution Technology | Yes |
| Intel Enhanced Halt State | Yes |
| Intel VT-x with Extended Page Tables (EPT) | No |
| Intel Demand Based Switching | No |
| Intel 64 | Yes |
| Execute Disable Bit | Yes |
| Idle States | Yes |
| Thermal Monitoring Technologies | No |
| Embedded options available | Yes |
| Intel Virtualization Technology for Directed I/O (VT-d) | No |
| Intel Virtualization Technology (VT-x) | Yes |
| Intel FDI Technology | No |
| Intel Fast Memory Access | No |
| Cable lock slot | Yes |
| Cable lock slot type | IBM |
| Internal modem | Yes |
| Modem speed | 56 Kbit/s |
| Modem type | V.90 |
| Intel segment tagging | Home office, Small Business |
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
Build your shortlist
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More products in this category. Compare their exact features, original reviews and available offers alongside the Lenovo ThinkPad T400.
| Product | Brand | Shown model | COR Score |
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| Lenovo IdeaPad 3 15IAU7 reviews → | Lenovo | 82RK0187UK512 GB · 8 GB RAM · i7-1255U · Wi-Fi · Blue · UK English keyboard | tbd0 critic reviews · Available after 3 |
| Lenovo IdeaPad Slim 3 14ARP10 reviews → | Lenovo | 83K60072UK256 GB · 8 GB RAM · 150 · Wi-Fi · Grey · English keyboard | tbd0 critic reviews · Available after 3 |
| Lenovo IP Flex 5 Chrome 14IAU7 (Plus) reviews → | Lenovo | 83EK000TUK256 GB · 8 GB RAM · i3-1315U · Wi-Fi · Blue · UK English keyboard | tbd0 critic reviews · Available after 3 |
| Lenovo ThinkBook 16 G9 AHP reviews → | Lenovo | 21UT000DUK512 GB · 16 GB RAM · 250 · Wi-Fi · Grey · English keyboard | tbd0 critic reviews · Available after 3 |
Your questions, answered
Lenovo ThinkPad T400 FAQs
How many expert reviews are available for Lenovo ThinkPad T400?
No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.
What is the COR Score for Lenovo ThinkPad T400?
The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.
Which exact version does this page cover?
This page identifies Lenovo ThinkPad T400 using manufacturer code NM7PTUK. Check that code, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.
What is the listed display diagonal for Lenovo ThinkPad T400?
The source specification records display diagonal as 35.8 cm (14.1"). This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
What is the listed display resolution for Lenovo ThinkPad T400?
The source specification records display resolution as 1280 x 800 pixels. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
Where can I compare prices for Lenovo ThinkPad T400?
Use the retailer-offer section on this page for available matched offers. If no offer is shown, we do not currently have a verified price. Confirm model, stock, delivery and the final total at the retailer; coverage does not include every seller.
How much memory do I need?
It depends on apps and multitasking. Check software requirements and buy enough headroom because many laptops do not allow later memory upgrades.
Can one USB-C cable do everything?
Sometimes, but capabilities vary. Confirm charging, display and data support for the laptop, dock, cable and monitor.
Are long software updates important?
Yes. They can affect security, compatibility and the usable life of a computer. Check manufacturer and operating-system support information.
How should I use the specifications alongside reviews?
Use the recorded features to check compatibility and make a shortlist. Read the original reviews for measured performance, everyday use and the tested configuration.
Understand your options
Laptop buying guides
Explore one topic in depth before making your shortlist.
Start with the complete buying guide →Laptop screen sizes: 13, 14, 15 or 16 inches?Screen diagonal is only one part of laptop size. Aspect ratio, bezel, resolution and chassis design change the usable workspace and footprint, while a larger battery can make two apparently similar machines carry…How much laptop RAM and storage do you need?Size memory for concurrent work and storage for active files, then check whether either can be upgraded.How to compare laptop battery-life claimsTranslate controlled battery figures into screen brightness, workload, calls and standby behaviour that resemble your day.USB-C laptop docks: charging, displays and portsVerify data, video and charging capabilities of the exact laptop port, dock and cable.