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I've seen lots of controversy on this topic so I want to ask it for myself.
I have 4 RAM slots on my Q43 (antelope) motherboard. Apparently It can take a max of 8GB of RAM. I already have 2 4GB sticks of RAM and loads of 2GB sticks. If they both run at the same speed Which would be faster for me? I've heard people say that 4x2 is faster because there are more lanes, and people say that 2x4 is faster because it doesn't have to switch between them? Who's right? And why?
The speed difference if it exist cannot be detected by a human, outside of a bechmark which doesn't indicate actual real performance often, there is no difference. – Ramhound – 2017-03-01T15:25:57.040
1@user702859 4x2 kit of 8GB costs less but compared to 2x4 kit of 8GB you would be better off getting 2x4 and later add more if neccesary. It will be a less expensive upgrade then buying completely new kit of 4. – RamonRobben – 2017-03-01T15:36:48.387
Are you totally sure about your premise that the motherboard can only take 8GB in total? The fact 4GB sticks work seems a bit strange in that regard.... I had a quick check of the spec here, and I wonder whether it isn't up to 4x8GB, non-ECC RAM, rather than the motherboard only being able to address 8GB of RAM.
– iwaseatenbyagrue – 2017-03-01T15:53:07.640