The increase in TDP mostly has to do with the increased GPU power - I think (speculating) that if you were running the 2010 CPU + the nvidia gpu hot for equivalent performance you'd be seeing at least as high a total power draw.
My 2010 15" MBP (i7, anti-glare upgrade) routinely gets 5-6+ hours on battery -- unless I'm doing something that causes the discrete GPU to kick in. Then, I'm lucky to get two hours.
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The increase in TDP mostly has to do with the increased GPU power - I think (speculating) that if you were running the 2010 CPU + the nvidia gpu hot for equivalent performance you'd be seeing at least as high a total power draw.
My 2010 15" MBP (i7, anti-glare upgrade) routinely gets 5-6+ hours on battery -- unless I'm doing something that causes the discrete GPU to kick in. Then, I'm lucky to get two hours.