ThinkPad T series

series of laptops by IBM and Lenovo

The ThinkPad T series is a line of notebook computers manufactured by Lenovo as part of the ThinkPad family. The T series is officially the flagship ThinkPad product, offering high-performance computers aimed … Wikipedia

Factsheet

Developer IBM: 2000–2005
Lenovo: 2005–present

Product family ThinkPad

Type Notebook computer

Factsheet

Developer IBM: 2000–2005
Lenovo: 2005–present

Product family ThinkPad

Type Notebook computer

Wikipedia

en.wikipedia.org › wiki › ThinkPad_T_series

ThinkPad T series - Wikipedia

December 9, 2025 - The ThinkPad T series is a line of notebook computers manufactured by Lenovo as part of the ThinkPad family. The T series is officially the flagship ThinkPad product, offering high-performance computers aimed at businesses and professionals.

History of IBM-branded models

History of Lenovo-branded models

Lenovo-branded models

Reviews

Gallery

Computer Wiki

computer.fandom.com › wiki › ThinkPad_T_series

ThinkPad T series | Computer Wiki | Fandom

2 weeks ago - The ThinkPad T series is a line of laptop computers. Originally developed by IBM, and introduced in 2000, the brand was sold along with the rest of IBM's business computer division to Chinese technology company Lenovo in 2005, who have continued ...

Discussions

ThinkPad L, T, E, P series - how to understand series?

P is a desktop in a laptop form. Its heavy, powerful, but is a super power hungry X is super portable L is supposed to be environmentally friendly, but often just ends up being a little more low end E is entry level and usually the lowest end option T are the "normal" laptop anything with an "s" added to it us a slimmer version and will often have soldered RAM even if the usual version does not The Soldering of RAM is annoying and varies from model year to model year and series to series. Also be aware that its pretty common to be able to put higher end components into a lower end computer with thinkpads if you have the time More on reddit.com

r/thinkpad

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February 19, 2025

How are the ThinkPad Series and Models categorized?

E - Budget L - Budget plus T - Business work horse P - T series but with quadro options X - Lighter T X1 - Flagship Yoga - Flexiboys Z - Garbage More on reddit.com

r/thinkpad

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January 6, 2022

Wikipedia

en.wikipedia.org › wiki › ThinkPad

ThinkPad - Wikipedia

1 week ago - All ThinkPad models have a keyboard membrane and drain holes (L series, P series, E series, T series, X series, X1 series, and Z series models), and some have a solid rubber or plastic membrane (like L series, W series, X1 series, and current T and X series), without draining holes.

History

Design

Features and technologies

reddit.com › r › thinkpad › wiki › series

r/thinkpad Wiki: A Guide to ThinkPad Series

June 26, 2025 - ThinkPad T Series (2000-present) - This is the flagship line that offers the best balance between ruggedness, features, processing power, and portability with 14", 15" and 16" displays, with the 15" version being discontinued in 2023.

ThinkWiki

thinkwiki.org › wiki › Category:T_Series

Category:T Series - ThinkWiki

November 26, 2019 - The T series was developed as a direct successor of the discontinued 600 series, with a little more emphasis on slimness · A very notable addition to the T series, was the late inclusion of a 'mobile workstation' configuration. This was not present in the original 600 series, due to the lack ...

Wikimedia Commons

commons.wikimedia.org › wiki › Category:ThinkPad_T_series

Category:ThinkPad T series - Wikimedia Commons

From Wikimedia Commons, the free media repository · <nowiki>থিংকপ্যাড টি সিরিজ; ThinkPad-T-Serie; ThinkPad T; ThinkPad T series; ThinkPad T; Thinkpad T系列; ThinkPad řada T; series of laptops by IBM and Lenovo; Laptop-Serie von IBM und Lenovo; Thinkpad Tシリーズ; Thinkpad T</nowiki> This category has the following 21 subcategories, out of 21 total.

Lenovo

lenovo.fandom.com › wiki › T_Series

T Series | Lenovo Wiki | Fandom

2000 The ThinkPad T Series is a line of laptop computers introduced by IBM in 2000. After the transfer of the consumer computer division in 2005, they were developed and marketed by Chinese technology company Lenovo.

reddit.com › r/thinkpad › thinkpad l, t, e, p series - how to understand series?

r/thinkpad on Reddit: ThinkPad L, T, E, P series - how to understand series?

February 19, 2025 -

Hi,

According to Wikipedia:

"P series are the most advanced ThinkPad products offered by Lenovo"

So I was chasing P, as I wanted to buy one with only Ryzen processor. My target: 14", 2021+ model (gen2+), I need workhorse good performing laptop. I would love 15" or 16" but to me latest versions are screwed regarding ergonomy --> touchpad on very left side. Rather than making a bit wider casing, they decided to make keyboard on the edges, so the result is not much space to rest left hand on casing, so I've picked 14".

Then I realized the fact that most of my targeted "P" has RAM soldered. I'm not looking for troubles, soldered CPU is bad enough. I do prefer RAM in slots so I can do cheap eco repairs in case of problems rather than scrapping whole board.

So I was scratching my head why in top P series RAM is soldered like in cheap junk rather than in slots?

So I went on T page:

"The T series is officially the flagship ThinkPad product, offering high-performance computers aimed at businesses and professionals." But found RAM soldered as well.

Okay, so I assume in here P as a top top, while T as a flagship, okay, both RAM soldered.

So I gave up and started to read about budget stuff, L series:

"L series has an added focus on economy and value, they are the entry-level range for enterprise use, and are also used by students." To me it sounds like really budget entry level cheap lower quality laptop, but hold no: surprisingly 2021 "L" model (gen2) with 2 RAM slots, while "higher" T and P same year models has soldered RAM.

Does it means: ignore series as they have no clue what they're doing really regarding marking series logically?

Or I'm just the biggest nerd in here and no one else is paying attention if RAM is soldered on board or in slot?

EDIT:

SORTED! SOUNDS LIKE BRILLIANT COMMUNITY IN HERE!

Thank you for brilliant info!

I just bought L14 gen2 for now (Ryzen gen5 5650U with good single thread performance, socketed RAM), as really needed to upgrade to carry on with my day-to-day work more efficient way, but by majority notes sounds like T14 / P14s is best bet for RAM socketed version with good Ryzen CPU and nice options while keeping good ergonomic thing (centered touchpad), in second hand market currently.

Definitely I'll watch listings/marketplaces and upgrade my L14 when I spot T14 / P14s one in good condition. Then it will be just matter of swapping SSD between, especially I'll run Debian. I don't need to worry now if it will be next week, month or in few months time because for now L14 in here, well, not delivered yet but on the way. Thank you all :-D

Top answer

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P is a desktop in a laptop form. Its heavy, powerful, but is a super power hungry X is super portable L is supposed to be environmentally friendly, but often just ends up being a little more low end E is entry level and usually the lowest end option T are the "normal" laptop anything with an "s" added to it us a slimmer version and will often have soldered RAM even if the usual version does not The Soldering of RAM is annoying and varies from model year to model year and series to series. Also be aware that its pretty common to be able to put higher end components into a lower end computer with thinkpads if you have the time

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P series (non-S) are mobile workstations. So they're outside the scope of standard laptops. X1 lineup is the flagship enterprise business laptop. Ts are premium enterprise business laptops. T are the mainstream enterprise business focused laptops. Ps also falls into this category, but with workstation certified drivers. X are the smaller, more compact T series. L are the value focused enterprise business laptops. E are the SMB focused business laptops. Ram being soldered or not can change from the same model from 1 generation to the next. IE - T14 Gen4 Intel had 1 solderd, 1 SODIMM, T14 Gen4 AMD fully soldered. T14 Gen5 both INtel and AMD have 2 SODIMM. Ram being soldered or not can change within the same line depending on the size of the laptop. IE - L13 Gen2 fully soldered ram, L14 Gen2 2 SODIMM.

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ArchWiki

wiki.archlinux.org › title › User:Flyingpig › Lenovo_ThinkPad_T_series_hardware_tables

User:Flyingpig/Lenovo ThinkPad T series hardware tables - ArchWiki

July 9, 2021 - This page contains a collection of hardware tables for various ThinkPad T series laptops (starting from the Lenovo ThinkPad T440).

Gentoo Wiki

wiki.gentoo.org › wiki › Lenovo_ThinkPad_T400

Lenovo ThinkPad T400 - Gentoo wiki

From Gentoo Wiki · Jump to:navigation Jump to:search · This article is a stub. Please help out by expanding it - how to get started. Resources · Hardware Maintenance Manual · ThinkPad T series · A ThinkPad with libreboot support. 1 Hardware · 1.1 Standard ·

Lenovo

lenovo.com › home

ThinkPad T Series Business Laptop|T590,T490s, T490, T490 Healthcare Edition, T495, T495s, T14s (14” Intel), T14s (14” AMD), T15 (15” Intel) T14 (14” Intel), T14 (14” AMD), T15p, T14 Gen 2, T15 Gen 2,T400, T410, T420, T420s, T430, T430s, T430u, T431s | Lenovo US

Shop the Lenovo ThinkPad T Series business laptop. Reliable, affordable & powerful business computer for small business, corporate & enterprise. FREE SHIPPING

ArchWiki

wiki.archlinux.org › title › Laptop › Lenovo

Laptop/Lenovo - ArchWiki

Reason: and instead of creating ... improvements (Discuss in Talk:Laptop/Lenovo) ... ThinkPad is a line of business-oriented laptop computers and tablets designed, developed and marketed by Lenovo, and formerly IBM....

Lenovo

lenovo.fandom.com › wiki › ThinkPad_25th_Anniversary_Edition

ThinkPad 25th Anniversary Edition | Lenovo Wiki | Fandom

This model is based on a T470, with a limited compatibility of case parts.

reddit.com › r/thinkpad › how are the thinkpad series and models categorized?

r/thinkpad on Reddit: How are the ThinkPad Series and Models categorized?

January 6, 2022 - These are chonker boys with magnesium Roll Cage built inside body for tank like build quality. Z - Zoomer / Gen Z series. Basically Garbage yes. ... Probably because the W series is discontinued. If you include discontinued series, there are many more that could be included - like the SL, R, A or G series. Also, the P series is not lighter. The last W series, W541, had a base-weight of 2.53 kg. The first P series, P50, started at 2.55 kg. The current model ThinkPad P15 G2 is even heavier with 2.87 kg.

Fandom

ibm.fandom.com › wiki › T_Series

T Series | IBM Wiki | Fandom

JavaScript is disabled in your browser · Please enable JavaScript to proceed · A required part of this site couldn’t load. This may be due to a browser extension, network issues, or browser settings. Please check your connection, disable any ad blockers, or try using a different browser

ThinkWiki

thinkwiki.org › wiki › ThinkPad_History

ThinkPad History - ThinkWiki

Lenovo completed the ThinkPad brand acquisition in May 2005. As part of the deal, some ThinkPads continued to be sold under the IBM ThinkPad brand for years afterwards. The said brand was however, discontinued (likely due to the license expiring) mid-way in production of the T61/R61/X61 models.

Lenovo

lenovo.com › home

ThinkPad T Series – Best Business Laptop for Professionals | Lenovo US

Discover the Lenovo ThinkPad T Series: premium business laptops delivering enterprise grade performance, advanced security, and rugged durability-ideal for professionals working remote or onsite.

Thinkpads

thinkpads.com › t61

T61 - Wiki

There is a well known issue with the nVidia discrete graphic system used on T61 series ThinkPads. It was first discovered in 2007 that these GPU chips were experiencing a greater then anticipated rate of failure. Although the rate of failure is believed to be low, perhaps less then 1%, with ...

reddit.com › r › thinkpad › wiki › index

r/thinkpad Wiki: Your Guide to ThinkPads

May 22, 2025 - Welcome to the official r/ThinkPad wiki! ... ThinkPads are tested to military standards, the exterior composite case absorbs and rebounds to severe forces encountered in falls, crushing accidents, and scrapes that would seriously damage metallic bodied units.

Wikiwand

wikiwand.com › en › ThinkPad_T_series

ThinkPad T series

The T series is officially the flagship ThinkPad product, offering high-performance computers aimed at businesses and professionals.[1] The ThinkPad T series was originally introduced in 2000 and was produced by IBM until 2005.