I'm looking to upgrade my RAM from 8 gb to 16 gb. I currently have 2 4gb sticks, and I would like to know if I need the same model of ram if I were to upgrade my RAM, or does it not matter? ( I want to add 2 more 4gb sticks)
Not really, it doesn't matter on model of ram. But, it does on type (DDR3) of ram (which I assume you are aware of). So even different model of rams with different frequencies could work together.