Island tech demo:
http://www.youtube.com/watch?v=miEglxHz1iA&feature=player_embedded
Ira tech demo [facework tech]:
http://www.youtube.com/watch?v=Vx0t-WJFXzo
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By AnandTech article it seems that they need 1ghz core to achieve this performance, but Nvidia hasnt talked about core frequency yet.
Very impressive stuff. Maybe now people will believe how fast technology advances and how outdated current gen is
More here:
http://www.anandtech.com/show/7169/nvidia-demonstrates-logan-soc-mobile-kepler