That's my question. It seems simple, but I've got three different pieces of information that all seem to contradict eachother.
According to to a Windows app called System Information Worker, I have 667Mhz DDR3 RAM. However, the "lshw" tool that comes with most Un*x systems (I frequently use Ubuntu), I have 1067Mhz DDR3 RAM. So, as a tie-breaker, I decided to look up my computer's manual (I didn't receive a manual when I bought the machine, so I downloaded one from my manufacturer's website). It said 1066Mhz DDR3 RAM. So that much for a tie breaker.
I've tried looking up the model of my machine's current RAM sticks, to see what exactly they are, but that lead me to a dead end, as I couldn't find anything about them.
So, all three sources of info tell me that I have DDR3 RAM, so that's pretty much undisputed. The majority of RAM I've found on Amazon is 1066, so that makes me think maybe the manual is right.
However, if 1067 is correct, I do have one question: If I put 1066Mhz RAM into a 1067Mhz machine, will the RAM work? Will 1Mhz make any difference as far as compatibility goes?
Any input is appreciated.