Apple's 2009 MacBook Pro: Battery Life to Die For
by Anand Lal Shimpi on June 12, 2009 12:00 AM EST- Posted in
- Mac
Lower Power Consumption = Smaller Power Bricks
Total system power consumption must have gone down since the entry level 15-inch MacBook Pro now ships with a 60W power brick instead of an 85W brick:
The new 60W adapter (left) vs. the old 85W adapter (right)
The difference could simply be because of the missing GeForce 9600M or because Apple indeed worked to reduce power consumption of the Macbook Pro as a whole.
The new 60W adapter (left) vs. the old 85W adapter (right)
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ltcommanderdata - Friday, June 12, 2009 - link
When Anand breaks out the results in the table for a head-to-head comparison he is comparing the new model against the Late 2008 Unibody which uses a 2.4GHz P8600 processor with a 25W TDP. So the TDP is unchanged.I believe the 2008 MacBook Pro (non-Late) in the charts with a 2.5GHz processor is a 800MHz Penryn, the T9300. I don't believe he uses this as his direct comparison since that MacBook Pro is 2 generations back.
PlasmaBomb - Friday, June 12, 2009 - link
Sorry the processor question was only a musing on my part, since on page 3 it states the cache of the current MBP but doesn't for the early '09. I merely wondered if the early 09 was a 35W TDP piece, now being changed to a 25W TDP piece.I don't have a mac and am purely interested in the tech :)
The main question was really supposed to be "Could the absence of the Nvidia 9600 GT be partly responsible for the increased battery life?"
Another question would be why didn't they update the dedicated graphics to the 55nm Nvidia GT 130M (basically a higher clocked 9600GT). Although I think Anand really answered that with - not many people use the graphics, so it might be an unjustifiable expense to apple :(
PlasmaBomb - Friday, June 12, 2009 - link
Sorry typing too quickly the processor number should be T9550 :(