A:AnswerThey are 8 Gigs each. I have 16 gigs of RAM installed in my iMac. I initially had problems with other RAM and since this RAM was installed the issues have been resolved.
A:AnswerI am not sure. Check the website Crucial.com Just plug in what system you have and it will tell you which RAM is compatible for your system. I hope this helps.
A:AnswerRecommend you go to Corsair Web Site where you can find all the information you will need to determine what memory is right for your specific application.