Mhz Additive or Not?

Zac Warham · Sep 28, 2016

I am looking at putting more RAM into my laptop. I have 1x8gb DDR3 at 1600Mhz and was wondering if putting a second stick into the laptop makes the speed additive or not (regarding stress/overclocking laptop).

Basically not sure if the two sticks means the CPU/Motherboard will be at 1600Mhz or if it is fine as they are separate entities at the base speed.

Here are my specs if this helps answer if upgrading is also possible with my setup.
- http://shop.lenovo.com/il/en/tech-specs/laptops/thinkpad-e450/
(i5 with R7 graphics, 1tb HHD)

Thanks

CountMike · Sep 28, 2016

If you think you are gong to have RAM speed of 3200MHz, no you are not but if they work in dual channel you'll get some better performance, actually higher memory bandwidth although nowhere as fast as if memory would actually run at 3200MHz.

helpstar · Sep 28, 2016

Have a look with the tool cpu-z. There should be the exact model you have installed now. Buy this exact model again to be 98% sure it's compatible.
If you can't get the exact model, buy the exact same specification if your current Ram.

Including 1600MHz, 8GB of capacity and the timings (CL)
Also keep in mind that the RAM has to be:
PC3-12800 1600MHz DDR3L, non-parity, 204-pin SO-DIMM socket
The L in DDR3L means low voltage, normal DDR3 SO-DIMM is not compatible

Zac Warham · Sep 28, 2016

CountMike :

What I meant was if say my computer only supports 1600Mhz, can I have multiple at 1600Mhz or must the total Mhz of all sticks add up to 1600?

helpstar :

That is what I was going to do but I am just not sure if about the doubling up. Also on a side note CPU-Z says I have just normal DDR3 not DDR3L

helpstar · Sep 28, 2016

Should be staying in the model number which model is it exactly?

If you already have 1600 don't get more or less than 1600

to match your installed ram. The MHz will then work for all ram installed. You can have multiple 1600MHz rams

Tradesman1 · Sep 28, 2016

All DRAM in a rig runs at the same data rate - here at 1600

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Mhz Additive or Not?

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