Lenovo ThinkPad P73
Type 20QS Laptop, from 2021 2 hardware reports
Memory
Up to 40 GB
4 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. 4 slots, up to 40 GB seen working.
It takes DDR4-2666 laptop-size sticks (SO-DIMM).
- Slots
- 4 SO-DIMM slots
- Type
- DDR4-2666 260-pin SO-DIMM
- Most seen working
- 40 GB; one machine runs 40 GB
- Firmware says
- 64 GB maximum
- How sure
- 2 of 2 reports show this layout
See 8 GB DDR4-2666 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.
4 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the Lenovo ThinkPad P73?
Yes. 4 slots, up to 40 GB seen working. It takes DDR4-2666 laptop-size sticks (SO-DIMM).
What type of RAM does the Lenovo ThinkPad P73 use?
DDR4-2666 laptop-size sticks (SO-DIMM, 260-pin).
Is this my laptop?
Check the label on the bottom. It should say ThinkPad P73, and the type code starts with 20QS. Other type codes share this name: 20QR.