different RAM compatibility

[Spiral Nemesis]

I currently have 8gb of ddr3 RAM in my computer and i would like to expand to 16gb for ramdisk.

My current build has:
mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131837
cpu: i5 3570k
ram: http://www.newegg.com/Product/Product.aspx?Item=N82E16820104242

as you can see, the RAM has been discontinued and buying it from other sources is too expensive so i consider adding a different RAM(http://www.newegg.com/Product/Product.aspx?Item=20-231-455&SortField=1&SummaryType=0&Pagesize=10&PurchaseMark=&SelectedRating=-1&VideoOnlyMark=False&VendorMark=&IsFeedbackTab=true&Keywords=%28keywords%29&Page=1#scrollFullInfo)

Would those 2 different ram be compatible with each other, if so, how should i configure both so i get the maximum performance out from both even though they are different?

 

[Nuclear101]

I would highly doubt that two different RAM sticks would be compatible. You have to have the same EXACT for a chance to be compatible, and even then some still aren't compatible. They have to all be tested at the exact time to be 100% compatible.

 

[Tradesman1]

I'd se;; off the Kingston, in the first place it's entry level 1600/9 and yet it calls for 1.65 voltage, you might well have trouble even getting another 1.65 set to play together and you don't want to use 1600 1.65 sticks anyway..With your combo, I'd look for a set of 2x8GB 1866/9 1.5, and see if you can sell off the Kingstons, you generally don't want 1.65 unless running 2133 or up, 1.65 at 1600 is indicative of weak memory chips - about 85% of all 1600 sticks are 1.5 or lower

 

[leeb2013]

1600 should be spec'd to 1.5v, 1.65 is a bit excessive as other's mention. I run my Gskill at 1.6v 2400MHz. If using 2 different type of memory, it would be best to try and get them with the same clock frequency, although you should be able to down clock the faster one or slightly overclock the slower one. How about seeing if your current Kingston memory will run at 1.5v, then get 2 more cheap sticks of 1600 1.5v?