PClopnik: quick question about dual channel RAM

Hey oppos,

Once again, thanks for all your help and input in my GPU and CPU cooler stuff.

CPU-Z says that I have dual channel memory; from everything I’ve seen, you need matching memory sticks for dual channel (I see that memory kits are typically sold in pairs, e.g. 16GB RAM is sold as 2x8GB sticks).

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I always knew that I had 12GB of RAM, but when I was installing my CPU cooler yesterday, I had removed the RAM sticks and it turns out I have one 4GB stick and one 8GB stick. Will the difference in capacity between the two memory sticks cause a noticeable issue or bottleneck? Or does the fact that they have similar stats (like timing and all that crap) mean that the dual channel capability will work as expected?