series of laptops by IBM and Lenovo

ThinkPad_T20.jpg
Thinkpad T430 in GNOME
T22 or T23 before the sale to Lenovo
T420s
T440
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
Factsheet
Developer IBM: 2000–2005
Lenovo: 2005–present
Product family ThinkPad
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Wikipedia
en.wikipedia.org › wiki › ThinkPad_T_series
ThinkPad T series - Wikipedia
1 month ago - 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.
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Computer Wiki
computer.fandom.com › wiki › ThinkPad_T_series
ThinkPad T series | Computer Wiki | Fandom
1 week 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 ...
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Lenovo
lenovo.fandom.com › wiki › T_Series
T Series | Lenovo Wiki | Fandom
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.
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ThinkWiki
thinkwiki.org › wiki › Category:T_Series
Category:T Series - ThinkWiki
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 ...
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Wikipedia
en.wikipedia.org › wiki › ThinkPad
ThinkPad - Wikipedia
2 days 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.
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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.
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Wikidata
wikidata.org › wiki › Q7784450
ThinkPad T series - Wikidata
English Wikipedia · publication date · May 2000 · 0 references · manufacturer · IBM · start time · May 2000 · end time · 3 May 2005 · 0 references · Lenovo · start time · 3 May 2005 · 0 references · has part(s) of the class · laptop · 0 references · Commons category · ThinkPad T series ·
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Reddit
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.
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EverybodyWiki
en.everybodywiki.com › ThinkPad_T_series_(test)
ThinkPad T series (test) - EverybodyWiki Bios & Wiki
May 31, 2020 - IBM introduced the T series as part of their ThinkPad brand in 2000[1] as the premier line, with traditional high-end features, such as the magnesium alloy rollcage, 7-row keyboard, screen latch, UltraBay, and ThinkLight.
Find elsewhere
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Reddit
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

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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
This page contains a collection of hardware tables for various ThinkPad T series laptops (starting from the Lenovo ThinkPad T440).
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ThinkWiki
thinkwiki.org › wiki › ThinkPad_series
Category:Models - ThinkWiki
ThinkPad P: High-end mobile workstations for content creation and digital audio mixing. Supersedes the entire W series. ThinkPad T: Portable high-end laptops for business trips and programming, supersedes the entire 6xx series.
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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
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Reddit
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.
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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.
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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.
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Wikidata
wikidata.org › wiki › Q861126
ThinkPad - Wikidata
From Wikidata · business computers and tablets series by Lenovo · Thinkpad edit · instance of · brand · 0 references · computer model series · 0 references · subclass of · laptop · 1 reference · imported from Wikimedia project · English Wikipedia ·
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Wikipedia
en.wikipedia.org › wiki › Category:ThinkPad
Category:ThinkPad - Wikipedia
Wikimedia Commons has media related to ThinkPad. The following 53 pages are in this category, out of 53 total. This list may not reflect recent changes.
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Wikiwand
wikiwand.com › en › articles › ThinkPad_T_series
ThinkPad T series - Wikiwand
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.
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Wiki2
wiki2.org › en › ThinkPad_T_series
ThinkPad T series — Wikipedia Republished // WIKI 2
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.