Same RAM. Different rank. Confusion. Help!

[Rejhan]

So I'm building a new pc and I'm not that experienced as you might have already assumed. The confusion starts with this single rank, dual rank stuff. Basicaly, I see the same ram with almost the same price and no differences in technical specs other then "single rank" and "dual rank" in the name

 

Single Rank: https://www.mindfactory.de/product_info.php/8GB-Crucial-Ballistix-Sport-LT-Single-Rank-grau-DDR4-2666-DIMM-CL16-Sin_1168436.html

Dual Rank: https://www.mindfactory.de/product_info.php/8GB-Crucial-Ballistix-Sport-LT-Dual-Rank-grau-DDR4-2666-DIMM-CL16-Singl_1172140.html

 

Can someone explain to me what the difference is, does it matter, and wich one I should buy?

 

P.S. I only have money for 1x8gb stick atm but im planning on buying another one in near future.

[Rejhan]

F5

[johndms]

14 hours ago, Rejhan said:

Can someone explain to me what the difference is, does it matter, and wich one I should buy?

Single Rank contains memory chips only on one side of the dimm. Dual Rank contains chips on both sides. I don't know the pros and cons, but if you're choosing for a Ryzen build, Ryzen prefers Single Rank.