The CPU does not support more than 8GB of RAM per SODIMM module. In particular, Linux and Windows fails to boot, and MemTest86+ crashes, when using a 16GB SO-DIMM module, model IMM2G64D3LSOD8AG-B15E from Intelligent Memory (which does work in a ThinkPad X250). ThinkPad X240 16GB RAM in one stick. X230 through X280, plus X390 series specific matters only. 7 posts. Page 1 of 1.

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Comparison Criteria
- Summary
- multimedia
- performance
- memory
- display details
- peripherals
- general information
- networking
- storage
- battery
- ports
- others

Lenovo Thinkpad X240 (20ALA0K-WIG) Ultrabook (Core i5 4th Gen/4 GB/1 TB/Windows 8)

Lenovo Thinkpad X260

Summary

storage	1 TB HDD	512 GB SSD
processor	Intel Core i5 (4th Gen) Processor	Intel Core i7 (6th Gen) Processor
display	12.5' (31.75 cm) display, 1366 x 768 px	12.5' (31.75 cm) display, 1366 x 768 px
ram	4 GB DDR3 RAM	8 GB DDR4 RAM

secondary camrearfacing
inbuilt microphone
sound technologies	Dolby Advanced Audio	Dolby Advanced Audio v2
webcam
audio solution	HD Audio Solution	HD Audio Solution
speakers	Stereo Speakers	-

performance

clockspeed	1.6 Ghz	2.5 Ghz
graphic processor	Intel HD 4400	Intel HD
chipset	Intel HM87 Express	-
processor	Intel Core i5-4200U (4th Gen)	Intel Core i7-6500U (6th Gen)

ram type	DDR3	DDR4
memory layout	1 x 4 Gigabyte	1 x 8 Gigabyte
memory slots	1 DIMM	-
expandable memory	8 GB	-
capacity	4 GB	8 GB

display details

display type	LED	LCD
display size	12.5 Inches (31.75 cm)	12.5 Inches (31.75 cm)
display resolution	1366 x 768 Pixels	1366 x 768 Pixels
display touchscreen
display features	HD LED Anti-glare HD display	HD LCD display with IPS technology

keyboard	ThinkPad Precision Keyboard	Standard Keyboard
backlit keyboard	-
pointing device	Touchpad with Multi-touch Gesture Support	Touchpad with Multi-touch Gestures support
fingerprint scanner

general information

dimensionswxhxd	305 x 208 x 20.3 mm	305 x 208 x 20.3 mm
operating system type	64-bit	64-bit
weight	1.3 Kg	1.3 Kg
operating system	Windows 8	Windows 10
model	X240 (20ALA0K-WIG)	X260 (20F5A050IG)
brand	Lenovo	Lenovo
colors	Black	Black

wireless lan	802.11 b/g/n	802.11 a/b/g/n/ac
bluetooth
bluetooth version	4.0	4.1

storage

hdd speedrpm	5400 RPM	-
hdd capacity	1 TB	-
hdd type	SATA	-

battery life	9 Hrs	-
battery cell	6 Cell Cell	6 Cell
battery type	Li-Ion	Li-Ion

ports

sd card reader
vga port
usb 30 slots	2	2
microphone jack
headphone jack
usb 20 slots	1	-

sales package	Laptop, Battery, AC Adapter, User Guide	Ultrabook, Battery, AC Adapter, User Guide
warranty	1 Months	3 Years

More Details

Price	₹ 90,197	₹ 114,480
Details	Full Details »	Full Details »

Thinkpad X240 Memory Slots