Thinkpads Forum

Posted: **Mon Dec 01, 2025 5:27 pm**

I'm planning to upgrade my X1 Extreme Gen2. Does anyone know if it can run at 3200MHz or should I just go with the DDR4-2666? While I'm at it, does anyone sell 48Mb RAM sticks? I'd like to upgrade to 64 and it seems like a waste to throw away the 16 I currently have.

Posted: **Mon Dec 01, 2025 6:01 pm**

The official number from Lenovo is that the X1 extreme gen 2 tops out at 2666Mhz.
Intel also says that 9th gen mobile processors only use up to 2666Mhz.

There are no 48GB DDR4 SO-DIMMs

Thinkpads Forum

Can X1-E Gen2 use DDR4-3200?

Can X1-E Gen2 use DDR4-3200?

Re: Can X1-E Gen2 use DDR4-3200?