Presumably the Samsungs in original areas are using no-bia.cm -- which is 256/128, isn't it?
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Presumably the Samsungs in original areas are using no-bia.cm -- which is 256/128, isn't it?
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256/192, I believe. I did a lot of tests of the effect on interactive speed of changing the CM file speed many moons ago and the result was that there was no noticeable difference once the downstream speed got above 256, most of the latency was in transmission from the end server and display code on the box. The graphs were a remarkably interesting shape.
Samsungs are faster because the box is faster (2 cpus to 1) and UBRs are better than Intersects, fundamentally. The code version is obviously different too, which may or may not have an effect. The end servers are the same in Langley areas for both DAVIC and Langley Samsungs (which took some sorting out, I can tell you, since of course all existing DOCSIS boxes wanted to talk to Bromley servers). And nowadays the latency in the IP routing is the same for practically all STBs, so that's not a factor.