Microsoft has an advantage with gpu tech/specs last time, and never wrote a word about those specs.
MS came out with a 1 teraflop nonsense PR statement with 360, and then a whole PR battle about memory bandwidths and crap. Both sides were entrenched in an ugly specs war, which was pointless because where perhaps the PS3 won on paper, the XB360 had the better average game experience. Specs don't matter; it's what's on screen, although with the same basic architecture, specs do matter in comparing.
As mentioned before, if you have a competitive advantage you use it. There's no reason to withhold specs if your specs are better than your rivals. If MS don't reveal any specs, we can take that as performance below that of their rival. What I expect is MS to talk about features as empowering. eg. "We've added custom display planes that allow PIP video with no impact to the game," and, "greatest audio processor ever to feature in a gaming device, creating, for the first time, immersive audio worlds every bit as good as the graphics on screen," and, "innovative memory move engines that alleviate a tedious job from the core processors, freeing them to work on what they do best," and other spins. If MS have a faster core, they'll mention it, "a cutting-edge 1.8 GHz 8 core CPU," because they'll one up their rival. If their GPU isn't as powerful, say the 1.2TF 12 CU design, they'll gloss over it and let the games do the talking - "a customised AMD APU with state-of-the-art, beyond DX 11 (they'll have a customised DX11.1) graphics processor making games more realistic and life-like than ever before. But don't take out word for it; let our content partners reveal the exciting accomplishment that XBox Infinity is enabling (cue montage of games followed by individual butt-kissing sales pitches by EA and Activision execs etc.)"
PR operates to a formula. It's about manipulating information to give a best possible impression of your product/service/client/policy (as an aside, it's also the worst corruption ever to come out of language and human intelligence, in total contrast to the principal of effective communication and clear, informed, intelligent decision making
). MS will follow the same strategy of everyone else and never, ever, admit to being in an inferior position in any area. Talk up what you do well, and talk down what you do not so well/badly. As a result, more critical people can read between the lines and understand the real product/service/person in terms of the balance between what's said and what isn't.
