Why impossible my macbook pro to read only 2 layers of AVCHD?

Hello

I have a brand new beginning 2011 17 "Macbook Pro with quad core i7 to 2.2 GHz, 8 GB ram, internal a two hard drive and 1 GB ATI graphics card (I used the OWC data Doubler to replace the optical drive with another SATA hd)."  The OS hd is 500 GB 7200 RPM and the other is 750 GB at 7200 RPM.  I have all my project files and media on the 750 and my cache of media on the 500. It seems to me that this should be a lot of power for read only 2 layers of AVCHD video smoothly, but maybe I'm wrong.  What is the bottleneck, & what can I improve? It's very frustrating. Another question, out of curiosity, is how the ATI card do in fact when using first pro? I know that it is not used as a CUDA card would be, so I'm just curious as to what he actually did.

Thank you very much!

Andrew

Andrew,

Here are the reasons why your MacBook Pro could not play back or even two layers of AVCHD video also gently as it should have been:

(1) first Pro's highly multithreaded - but OSX itself is relatively poor compared to Windows 7 in multhreaded performance.

(2) more mobile i7s are significantly slower than their desktop cousins because they are designed for low-power consumption, second creation. Mobile processors, in fact, is full of compromises, to start.

And Yes, playback of AVCHD videos in itself is itself almost entirely in software only, even if you have an Nvidia card that fully supports the GPU acceleration in MPE. If you still need a very fast processor for even two layers of AVCHD playback (which are much more tax the CPU than most of the other HD formats - and there is absolutely no free lunch, in this case, because the HD codecs which require no such a robust CPU actually needs of larger and faster drives). Unfortunately, a 2.2GHz i7 is not yet powerful enough to decode the two layers of AVCHD simultaneously; in fact, you will need one that turns to well above 4 GHz can manage this task at all.

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