Combining 2 RAMs with 2 different frequencies

[saurabh015]

Hi,
I already have 4GB DDR3 RAM (manufactured by Dynet) which runs at 667Mhz.
CPU-Z screenshot: http://i.imgur.com/Xsh5nkz.png

I'm planning to add Corsair CMV4GX3M1A1600C11 4GB (which runs at 1333Mhz) Memory to my system.
Link: http://www.amazon.in/Corsair-CMV4GX3M1A1600C11-4GB-Memory/dp/B009CILPRI/

My question is, will both the RAMs work simultaneously?

 

[cdabc123]

that first set is vary slow i would buy 2 new sets

 

[Jon-Doe]

Will hinder your new RAM. I suggest buying a set of 2x4 so they are the same.

Usually you want your RAM to be the exact same. It is one reason they come in even numbers.
You want them to be even.

 

[Deuce65]

They should work together most likely. They will run at the lower speed 1333 though of course.

 

[Nuwan Fernando]

You should know that DDR means dual Data rate. So to your screenshot showing 667 of speed says that it works on 1333(667X2) speed. So your new RAM too runs at 1333. So you are buying a matching part for your existing RAM. They are compatible..

They'll run at 1333 Speed.

 

[saurabh015]

I forgot to mention that my motherboard "Gigabyte GA-B75M-D3H" has 4 RAM slots.
In which slot, should I put the new RAM to make the best use of it.
Currently, the RAM which I have is in first slot.

 

[Tradesman1]

Maybe, there are no guarantees when mixing DRAM, even if you get a set of the same exact model as what you have, Look around in the forums, it's full of people trying to mix sets of DRAM (even 2 identical sets) and problem after problem

 

[Nuwan Fernando]

Put them in 1st and the 3rd. Which are coloured in blue.