Dell XPS 15 7590
Yes. 2 slots, up to 64 GB seen working.
It takes DDR4-2666 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2666 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
- 189 of 189 reports show this layout
Worked out from 189 hardware reports of this laptop. Sources and method. Updated 10 Nov 2026.
Yes. It takes an NVMe M.2 SSD.
The slot runs at PCIe 3.0 x4, up to about 3.9 GB/s. A faster PCIe 4.0 drive works too, at that speed. M.2 drives come in 2230, 2242 and 2280 lengths (30, 42 and 80 mm). Check the length printed on your current drive before you order.
- Drive type
- NVMe (PCIe)
- Slot speed
- PCIe 3.0 x4, from 181 machines
- Length
- Check your current drive
- How sure
- NVMe drive in 240 of 241 machines
From 241 PCI device reports. Sources and method. Updated 10 Nov 2026.
Illustration Batteries in these laptops report 97 Wh.
That is the design capacity the batteries themselves report, and the label can read 1 to 3 Wh higher. Other pack sizes may have shipped, so check the capacity printed on yours before you order.
- Capacity
- 97 Wh
- Pack code
- GPM03
From 189 battery readings. Sources and method. Updated 10 Nov 2026.
Illustration Match the label on your charger.
We don't have this model's charger rating yet. The label on your charger shows it: the output line gives volts and amps, and volts times amps is the watts (19.5 V at 3.33 A is 65 W). Buy one with the same plug, the same voltage and at least as many watts.
- Rated output
- On your charger's label
How to read a charger label. Sources and method. Updated 10 Nov 2026.
Illustration Questions
Can I upgrade the RAM in the Dell XPS 15 7590?
Yes. 2 slots, up to 64 GB seen working. It takes DDR4-2666 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell XPS 15 7590 use?
DDR4-2666 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Dell XPS 15 7590 take?
Machines in the reports run up to 64 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
What SSD does the Dell XPS 15 7590 take?
Yes. It takes an NVMe M.2 SSD. The slot runs at PCIe 3.0 x4, up to about 3.9 GB/s. A faster PCIe 4.0 drive works too, at that speed. M.2 drives come in 2230, 2242 and 2280 lengths (30, 42 and 80 mm). Check the length printed on your current drive before you order.
What battery does the Dell XPS 15 7590 use?
Batteries in these laptops report 97 Wh. The pack code is GPM03. Check the capacity printed on yours before you order.
Is this my laptop?
Check the model name on the label underneath. It should read XPS 15 7590.