Fair point, I agree that the proper terminology, it should be GiB to be explicit. I was just trying to point out, that the only time you should ever consider GB might mean 2^30 is with memory (and it usually does with memory). You should always assume that GB means 10^9 in all other scenarios. Bandwidth, Disk Space - GB always means 10^9.

I believe his point is that memory manufacturers advertised 1GB of RAM which is actually 1GiB. So for advertised memory, 1GB = 1024MB.