Re: That is actually pretty impressive...
- From: Edwin <thorne25@xxxxxxxx>
- Date: Wed, 28 Apr 2010 17:41:51 -0500
On Wed, 28 Apr 2010 15:39:53 -0700 (PDT), ed wrote:
On Apr 28, 2:04 pm, Edwin <thorn...@xxxxxxxx> wrote:
In the course of arguing with David Fritzinger he made me aware that some
MacBooks actually have two graphics processors, nVidia and integrated
Intel, and switch between them as needed to conserve power.
That's very ingenious.
so you can argue with dave some more, the first version on the macbook
pros was neat, but broken- it required you to log out before it'd
switch, all the while it worked via hot key / switch on windows
notebooks. ;D they finally fixed it (and made it better) in the new
version by making it dynamic (based on api calls i believe) versus
some windows laptops which now automatically start up the higher
performance gpu when certain apps were started.
I can't say for sure if it completely justifies the higher price tag, but
it is certainly impressive.
http://www.appleinsider.com/articles/10/04/13/nvidia_says_new_macbook_pro_graphics_switching_isnt_optimus.html
"An Nvidia spokesperson confirmed to AppleInsider Tuesday that Apple's new
high-end MacBook Pros include an automatic graphics switching solution that
is the Mac maker's own creation. Nvidia had no input on Apple's solution
and would not comment on the utilized technology."
"Earlier this year, Nvidia introduced a new technology called Optimus,
which is designed two work alongside Nehalem notebook designs -- like the
Core i5 and Core i7 -- that include Intel's integrated graphics processor,
as well as a discrete Nvidia graphics chip. The feature chooses the best of
the two processors for running a given application. While the end result is
similar, Apple's automatic graphics switching solution is not Optimus,
Nvidia said."
"Apple on Tuesday introduced its new line of MacBook Pros, with the 15- and
17-inch models sporting the proprietary graphics switching capabilities.
The feature dynamically switches between the 330M for peak performance, and
the integrated Intel HD Graphics for more energy efficient operation. Apple
said the tightly integrated software and hardware solution allows battery
life of 8 to 9 hours on the new MacBook Pros."
.
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