I can't really see how that applies to Cyan's "leak". That sounds like a potential real report to me. Without knowing real details about these kits how can anybody really judge this one to be fantasy?
P.S. I haven't done game development but worked on embedded OS design, driver work, bootstrapping and tools. Measuring the performance of these DevKits with some stress tests done for previous systems sounds pretty normal to me.
Probability Theory and Information Theory.
''
Probability theory is a mathematical framework for representing uncertain statements. ... While
probability theory allows us to make uncertain statements
and reason in the presence of uncertainty,
information allows us to quantify the amount of uncertainty in a
probability distribution.'
If we have some information we can make assumptions that are more probable. In this case, Sony's confirmation on SSD, Navi, Zen, Ray tracing, these items have enough information for us to guess the certainty of certain 'leaks' or guesses.
However, when you have no information to check the certainty, the options are very wide, making each option both fake and real, with no real thing to claim it being true. Except when you think about it, of all the creativity there can be about the specs, there is only 1 actual correct spec to an infinite number of configurations. So we can make a probable claim that 99.99999% of guesses are probably wrong (for now until some real information is provided). To be clear, all the guesses on what's happening with Xbox is based entirely off leaks and from 1 source.
The most we could do is cluster some data points together and hope the Xbox lands somewhere in there, but we're talking about a clustering of guesses, we're still not sure what the drivers of what is possible actually are since MS has not made clear their intentions for their next generation console(s).
Ie if we did the exact same exercise back in 2012, no one would have guessed kinect and TV, until after they announced it.