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0 pointsMrFoof15y ago0 comments

I'm not sure if they're being more realistic.

The previous MBPs had CPUs with a TDP of 35W. The TDP of the CPUs in the 2011 MBPs are 45W. Battery life seems to have dropped inline with the increase in power envelope.

We should see improved battery life next year with Ivy Bridge, or if there's a mid-year refresh with Sandy Bridge processors with new steppings.

Regardless, I plunked down for a 15" today so I could rid myself of the large brick my workplace saddled with me. They didn't believe me when I said I'd buy my own laptop with my own case. Hell, I meant it.

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3 comments · 2 top-level

trotsky15y ago· 1 in thread

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.

rosser15y ago

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.

wtallis15y ago

I think the TDP increase is mostly due to the integrated graphics being moved on to the CPU. Overall platform power usage should be lower than the previous generation.

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