Question Difference in 2Gx8 vs 2Rx8 can be used together?

[BBINARY]

I have dell vestro 360 all in one pc and i jave to upgrade the ram and in the pc one 2GB DDR3 2Gx8 1333mhz is already installed and i want to add another Ram

Q1 In market other ram has same specifications but only difference is that on them 2Rx8 is written and on mine 2Gx8 so can i use them together?

Q2 On my ram there are 8 memory chip 4 on each side but one in market it has 8 memory chips all on one side so its okay to use that (all spec are same in both ram)

Q3 should i buy the 4 gb varient bc it is coming at good value or should i stick to the 2gb one ?

 

[DSzymborski]

Mixing and matching RAM *may* work, but it's not guaranteed to. The closer the sticks, the more likely, but it's not guarantee even if the RAM has the exact same branding. Only RAM sold together in a single kit is tested and guaranteed to work together. Anything else is a gamble.