I was under the impression the TDP was the max wattage the CPU would use which is the same for both. Although at idle I could see maybe the i5 using say 5 watts and i7 using 6watts. Maybe the i5 never quite hits the 17watts too.
I just noticed my card was charged the 1300 I put on it at 8:59pm EST last night and then AGAIN at 9:02PM EST for 100 dollars. Both said pre-auth to apple store online. Not sure why they would charge the full amount before the 100 dollar one. Only supposed to be 1300 on that card max. Anyway, does that mean mine shipped last night? It still says prepared for shipment on my order status though. Thought they don't charge till it ships.
They charged me for mine last night almost straight away. It was the standard config and has only just been "prepared for shipment". That was 23 hours and 52 minutes ago..... I need it before I go on holiday at 11am tomorrow, paid £15 for pre 9am delivery too. It better be here!