Just a note, but imho video decoding these days is not very good benchmark on performance, as it is usually handled by somewhat specialized hardware decoder instead the general purpose CPU (even if they both are integrated on the same physical chip).
I'll try to answer your question on why some people might have downvoted you. In spoken English we can use a wide variety of tones to indicate things like sarcasm or strong disagreement when asking a question. Translating this into written English isn't totally straightforward, but one common way of signalling these things is to use scare quotes[2]. In this way writing "Why do you say its usually like that" and "Why do you say its 'usually' like that?" have the same literal meaning but the later has a belligerent or sarcastic subtext. In general, if you don't want to come off as disagreeable you should never put quotes just around single words like usually, and especially not words or phrases that weren't actually used in the conversation like "off die" when questioning them.
[2] http://en.wikipedia.org/wiki/Scare_quotes
Because I'm quoting that specific word from the original text as the one that confused me.
As for the differences between written/spoken English, I'm a non-native speaker/writer with plenty of experience but stuff like this will probably forever delude me.
GPUs have included specialized video decoder hardware for the last several generations[1]. Now that the GPUs are being integrated with the CPUs, that capability is available there too.
Yes, I know about the decoders on video cards, I'm interested in the ones where it is 'common' (or 'usually' as the OP uses it) to see them integrated with regular CPUs in the same package but 'off die'.
Basically all non-netbook laptops sold within the last 6 months have a CPU that has on-die video decoding, but many (though still a minority) desktops don't. I'm not sure why you're bringing MCMs into the discussion, those were the norm in Intel laptops for about a year before that with the Nehalem chips in laptops, but right now the only MCMs being sold are server chips which don't have GPUs at all, but rather require more silicon than can economically be produced in one piece.
