Can I Upgrade DDR4 Ram Laptop from 4gb 2400mhz to 8gb 2666mhz ?

[Shukri90]

I want to upgrade my laptop ram, which one is suitable for my laptop? My original Ram is  4gb Ram 1Rx16 PC4-2400T-SC0-11 HMA851S6AFR6N-UH NO AC 1812.

Since both of 2400mhz & 2666mhz within same price, which one is better for my laptop and how i have to choose between this two?

Thank You Hope Someone to answer my quest.

my original RamI intend to buyor This more suitable?

[Paul_Tikkanen · Accepted solution]

Hi:

The 2666 MHz memory will downclock to 2400 MHz, because that is the fastest the processor can run the memory at.

So there would be no advantage to installing the 2666 memory module, unless you intended to transfer it to a newer model PC in the future that could run the memory at 2666 MHz.

It is usually best to install memory that has the same specs if you plan on keeping the 4 GB memory chip installed.

I would suggest you install 2 x 8 GB as soon as possible so the memory runs in DDR mode.  It will not run in DDR mode with an 8 GB + 4 GB chip.

If you go with the 2 x 8 GB chips, then you may as well buy the 2666 MHz memory.

[Shukri90]

So that means, the processor only support at 2400mhz only whether i'm installing 2666mhz. Tq for help appreciate it.

[Paul_Tikkanen]

You're very welcome.

That is correct.  The 2666 MHz memory will downclock to 2400 MHz.

Here is the link to the Intel specs for your notebook's processor which shows the supported memory speed.

The processor will run the memory at a max of 2400 Mhz.

https://ark.intel.com/content/www/us/en/ark/products/124967/intel-core-i5-8250u-processor-6m-cache-u...

[Shukri90]

ok now i've come to understanding about how to choose suitable ram speed. It actualy should refer to the capacity of Cpu processor. Btw thank again for the link.

[Paul_Tikkanen]

Anytime.

Glad to have been of assistance.

That is correct. 

No intel processor can run memory any faster than the processor's FSB specification.