RAM Upgrade
Dell XPS 16 9640 Max RAM & Upgrade
The short answer
The maximum supported RAM for the XPS 16 9640 is 64 GB. No — the XPS 16 9640's LPDDR5x memory is soldered to the motherboard and cannot be upgraded.
Last verified 9/28/2026 · Sources: Dell
Specifications
- Memory type
- LPDDR5x
- Form factor
- soldered
- Total slots
- 0
- User-accessible slots
- 0
- Maximum supported
- 64 GB
What to buy
The memory cannot be changed after purchase, so choose the size when you buy: the manufacturer documents up to 64 GB for this model.
The manufacturer's manual for this model is linked below. We have not recorded its opening or replacement steps, so follow the manual for the procedure.
Worth knowing before you buy
- This is the manufacturer-documented maximum — some platforms have been community-tested beyond the officially configured maximum, but that isn't treated as verified here.
Also upgrading storage?
Sources
- Dell — XPS 16 9640 Owner's Manual — verified 8/19/2026
- Dell — XPS 16 9640 Owner's Manual — external ports — verified 9/28/2026
- Dell — XPS 16 9640 Owner's Manual — display support — verified 9/28/2026
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