sizzling :
I agree take their claims as best case scenario but it would be a pretty stupid move if no one could match their claims in the real world
they will be able to match their claims no doubt. BUT...they didn't tell you in which scenarios such claims are true...
they can state this...then a month later when the real world benchmarks start rolling in they can say "well we were talking about GPGPU not gaming performance." or they could say "oh we were talking about performance-per-watt, not gaming performance" and that very well may be true. the graph in their presentation was performance per watt....if you looked at it carefully. and i have no doubt that pascal will whip maxwell in performance-per-watt. if it didn't that would be a joke...