Lenovo ThinkPad X1 Carbon 4th
Type 20FQ 2-in-1 laptop, from 2016 2 hardware reports
Memory
Up to 8 GB
1 laptop-size slot
SSD and charger
Coming next
Checked from separate sources
Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.
Depends on the configuration
It depends on the configuration.
The reports show more than one memory layout for this laptop. Check the label or the system information before you buy.
- Slots
- 1 SO-DIMM slot
- Type
- LPDDR3-1866 SO-DIMM
- Most seen working
- 8 GB; one machine runs 8 GB
- Firmware says
- 16 GB maximum
- How sure
- 1 of 2 reports show this layout
See 8 GB LPDDR3-1866 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 2 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
1 laptop-size slot
Illustration Questions
Can I upgrade the RAM in the Lenovo ThinkPad X1 Carbon 4th?
It depends on the configuration: the reports show more than one memory layout for this laptop.
What type of RAM does the Lenovo ThinkPad X1 Carbon 4th use?
LPDDR3-1866 laptop-size sticks (SO-DIMM).