ThinkPad X series

ThinkPad X series
ThinkPad X220
DeveloperIBM (2000–2005)
LG/IBM (2000-2004,[1] only for South Korea branding)
Lenovo (2005–present)
TypeCompact Laptop,
Netbook (X1##e),
Subnotebook (X2##),
Ultrabook
Release dateSeptember 2000
PredecessorThinkPad 240
ThinkPad 500 series
This article is part of a series on the
ThinkPad
IBM lines:

Lenovo lines (former/current):

Current lineup

The ThinkPad X series is a line of notebook computers and convertible tablets produced by Lenovo as part of the ThinkPad family. The ThinkPad X series is traditionally the range best designed for mobile use, with ultraportable sizes and less power compared to the flagship ThinkPad T series.[2] It was initially produced by IBM until 2005.

IBM announced the ThinkPad X series (initially the X20) in September 2000 with the intention of providing "workers on the move with a better experience in extra-thin and extra-light mobile computing."[3] The ThinkPad X series replaced both the 240 and 570 series during IBM's transition from numbered to letter series during the early 2000s. The first X Series laptops were "slimmer than a deck of cards" and "lighter than a half-gallon of milk", despite the presence of a 12.1-inch Thin-film transistor (TFT LCD) display.[4] These design values—thin and light—continued to be integral to the ThinkPad X-series laptops' design and marketing, even after the purchase of IBM's Personal Computing Division by Lenovo. The first X Series ThinkPad released by Lenovo was the X41 in 2005.[5]

The ThinkPad X-series laptops from Lenovo were described by Trusted Reviews as "combining an ultraportable's weight and form factor with a durable design."[6] The X-series laptop styles include traditional ultraportables, as well as convertible tablet designs.[7] According to Lenovo, the ThinkPad X-series laptops include low power processors, offer long battery life, and several durability features such as a Roll Cage (Magnesium Frame around the Display), magnesium alloy covers, and a spill-resistant keyboard[7] but currently lacks a replaceable battery and upgradable RAM slots.

Battery configuration

Main M(x) Main hot-swappable
(max.cells) 		Secondary U Ultrabay removable
u Ultrabay unremovable
M(x) Main removable
(max.cells) 		m(x) internal
(max.cells)
"PowerBridge"
m(x) Main internal
(max.cells) 		S Slice battery
Laptop color codes

Laptop storage combinations (excluding WWAN slot)

Level PCIe 4.0 x4 PCIe 3.0 x4 PCIe 3.0 x2 M.2 SATA mSATA 1.8" SATA 2.5" SATA 1.8" IDE 2.5" IDE
2019
Not yet
(laptops) 		2013 2013 2013 2009 2003 2003 1991 1988
3 2
4
3 1
2 2
3 2
3
2 1
4
3 1
2 2
2
1 1
3
2 1
1
2
1 1
2 1
4
1
1 1
3
1
1 1
1 1
1 1
2
3
1
1
2
1
1

Laptop memory

Amount LPDDR5X LPDDR5 DDR5 LPDDR4X LPDDR4 DDR4 LPDDR3 DDR4 DDR3L DDR3 DDR2 DDR SDR EDO FPM
dual channel < dual channel dual channel < dual channel dual channel < dual channel dual channel < dual channel
2022
(laptops) 		2019
(laptops) 		2020
 2017 2014 2014 2012 2014 2010 2007 2003 1998 1993 1993 1987
max memory = 512 GB N/A N/A 512 GB N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
max memory = 256 GB N/A 256 GB (4 slots) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
max memory = 128 GB 128 GB 128 GB N/A N/A 128 GB (4 slots) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
64 GB ≤ max memory < 128 GB 64 GB N/A N/A 64 GB N/A 64 GB (2 slots) 64 GB (4 slots) N/A N/A N/A N/A N/A N/A N/A N/A N/A
32 GB ≤ max memory < 64 GB 32 GB 32 GB 32 GB N/A 32 GB 32 GB (2 slots) 32 GB (4 slots) N/A N/A N/A N/A N/A N/A N/A
16 GB ≤ max memory < 32 GB 16 GB 16 GB 16 GB 16 GB 16 GB (2 slots) 16 GB (4 slots) N/A N/A N/A N/A N/A
8 GB ≤ max memory < 16 GB 8 GB 8 GB 8 GB 8 GB 8 GB (2 slots) 8 GB (4 slots) N/A N/A N/A
4 GB ≤ max memory < 8 GB 4 GB 4 GB 4 GB 4 GB 4 GB 4 GB (4 slots) 4 GB (4 slots) N/A
2 GB ≤ max memory < 4 GB 2 GB (8 chips) 2 GB 2 GB 2 GB 2 GB 2 GB N/A
1 GB ≤ max memory < 2 GB 1 GB (1 chip) dual channel min dual channel min N/A single channel min 1 GB 1 GB 1 GB 1 GB (4 slots)
512 MB ≤ max memory < 1 GB N/A N/A N/A single channel min single channel min N/A dual channel min half channel min 512 MB (8 chips) 512 MB (8 chips) 512 MB 512 MB
256 MB ≤ max memory < 512 MB N/A N/A N/A 256 MB (1 chip) 256 MB (1 chip) N/A single channel min 256 MB (1 chip) N/A single channel min N/A single channel min 256 MB
128 MB ≤ max memory < 256 MB N/A N/A N/A N/A N/A N/A 128 MB (1 chip) N/A N/A half channel min N/A half channel min
64 MB ≤ max memory < 128 MB N/A N/A N/A N/A N/A N/A N/A N/A N/A 64 MB (1 chip) N/A 64 MB (1 chip)
max memory < 64 MB N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
  1. ^ "싱크이노베이션 - LG-IBM THINKPAD X40" (in Korean). notegear.com. Archived from the original on 26 February 2019. Retrieved 25 February 2019.
  2. ^ https://www.notebookcheck.net/Lenovo-ThinkPad-T-X-Which-is-the-best-mobile-ThinkPad-notebook.219624.0.html
  3. ^ "IBM announces the new Thinkpad X Series Ultraportable Computer". 11 September 2000. Archived from the original on 11 October 2012. Retrieved 30 May 2011.
  4. ^ Avram Piltch (8 March 2011). "Lenovo ThinkPad X220 Review". Archived from the original on 11 March 2011. Retrieved 30 May 2011.
  5. ^ "Lenovo Company History". Archived from the original on 2 May 2005. Retrieved 22 June 2011.
  6. ^ "Lenovo ThinkPad X300 review". 22 April 2008. Archived from the original on 30 December 2011. Retrieved 20 February 2012.
  7. ^ a b "ThinkPad X Series Features". Retrieved 20 February 2012.