ISO Performance to get close to the 5D3
The rest of the spec list looks pretty darn good, but I'll believe the line about ISO performance when I see RAW files. But then again, in marketing speak 'close to the 5D3' might mean simply that the native range is 100-12800 (which is 'close to' the 100-25600 native range of the 5DIII and a 1-stop improvement on the 7D spec). Many times, Canon's statements about ISO performance improvements refer to JPG images or ISO range, not noise levels at a given ISO setting.
+1. To have the same shot noise as the 5D3, the new 7D must have QE of about 125% (if you believe the Sensorgen figures), which is absurd. The only thing the can and should do is to improve the read noise and to bring the QE in line with the recent sensors, Canon included.