Yeah, hard to do, because the tensilica cores are configurable. This one is configured similarly, although there will still be differences. the 16/32 bit difference may also explain why their result is about 2x what I expected. I do know that the MS vector cores have full 32bit float vector engines, because that's what the speech pipeline uses.
As far as I know, game developers do not have access to the 4 DSP cores. They are all system managed. They have access to codec algorithms running on the cores, and full access to the fixed function hardware. Much to the audio team's chagrin, the speech team bogarted the two vector cores. I know there was some internal pressure to force the speech team to give up some of their CPU so that developers could use it, but I have no idea if anything ever materialized from that.
So is there enough power to do great game audio on SHAPE without X1 having to hit the Jaguar CPU?
It seems on neogaf they've kind of started a "SHAPE is (mostly) only for Kinect" style narrative. Granted, they are pretty much always wrong...