[SOLVED] how to undrestand digits on laptop ram?

[rzm_sikorsky]

Hi

I need to buy an 8GB DDR3L (PC3L) ram and I found the same rams of the same brand in the same capacity, but there is a single difference in digits written on them. As you can see on one it's "8GB 2Rx8 PC3L-12800s-11-12-F3" and on the other one it's "8GB 2Rx8 PC3L-12800s-11-13-F3"; both rams have the speed of 1600MHz 11-11-11. I don't understand 11-12 and 11-13, would you help me on this? and also what's that "F3"? is it Gerber format?

Thanks

 

[alexoiu]

Hi, https://www.skhynix.com/eng/support/technicalSupport.jsp
Click Label Info DDR3