Lenovo ThinkPad X1 Extreme Gen 3
Type 20TL Laptop, from 2023 2 hardware reports
Memory
Up to 64 GB
2 laptop-size slots
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.
Upgradable
Yes. 2 slots, up to 64 GB seen working.
It takes DDR4-2933 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2933 260-pin SO-DIMM
- Most seen working
- 64 GB in two or more machines
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 2 of 2 reports show this layout
See 32 GB DDR4-2933 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.
2 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the Lenovo ThinkPad X1 Extreme Gen 3?
Yes. 2 slots, up to 64 GB seen working. It takes DDR4-2933 laptop-size sticks (SO-DIMM).
What type of RAM does the Lenovo ThinkPad X1 Extreme Gen 3 use?
DDR4-2933 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Lenovo ThinkPad X1 Extreme Gen 3 take?
Machines in the reports run up to 64 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
Is this my laptop?
Check the label on the bottom. It should say ThinkPad X1 Extreme Gen 3, and the type code starts with 20TL. Other type codes share this name: 20TK.