Extremly bad previews and render times.

i have been working on a video in AE CS6 for a couple of days now but something changed after i added a 3D Solid layer with render set to ray-traced 3d, and now i can barely see my project in the compositon window as it gets
extremly pixelated. whith extreme difficulty i managed to complete the project but when i started the render of the viedo it gave me an estimated render time of 104 hrs for just one 3d layer that is only present in the
video for about 5 seconds out of the 4min long viedo. unfortunatly i cant enable GPU Ray-tracing because it says its not complatible even after i updated my drivers.
Specs
Gpu: AMD HD-7870
Cpu: A10-5800K (APU)
RAM: 8 gb

That GPU is not one that After Effects will use for PGU acceleration of the ray-traced 3D renderer.
The ray-traced 3D renderer is quite slow when it is just running on the CPU.
For details of GPU processing, see this page:
http://blogs.adobe.com/aftereffects/2012/05/gpu-cuda-opengl-features-in-after-effects-cs6. html

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This is a bad project to use as a benchmark - since the first half is a clone layer run backwards (sounds like the plot to a bad science fiction movie) - I get about 2 fps on the first half, then about 9 on the second half. The fun with a ball is a better benchmark to try...
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Screenshot 1
Screenshot 2
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About my Mac:
Proccessor: 2.4 GHz Intel Core i5
Memory: 8 GB 1333 MHz DDR3
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Hi, drhalm.
Thank you for visiting Apple Support Communities.
This sounds like your music is not stored locally on the device and accessing your purchases in the cloud. There is a new feature in iOS 7 that shows all purchased music and requires and Internet connect to play this content. You can download any missing media via the steps in the first article below. If the media is located in your iTunes music library, you can sync the media from your Mac to your iPhone. If unfamiliar with the process, I have included the steps in the second article below.
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http://support.apple.com/kb/ht2519
iTunes 11 for Mac: Set up syncing for iPod, iPhone, or iPad
http://support.apple.com/kb/ph12113
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Hi,
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I throw the pref and all the basics rescue opération, even re-install FCPX and Motion following the apple process, no changes !
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Does it ring a bell to sbdyelse ?
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Seb

here is what I did :
Timemachine save of the mac
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Install Mac OSX
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Important
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http://tv.adobe.com/watch/learn-after-effects-cs6/global-performance-cache/
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Thank you in advance.

See this page for information about memory and improving performance in After Effects: http://adobe.ly/dC0MdR
See this page for resources about making After Effects work faster: http://adobe.ly/eV2zE7
See this page for information about hardware for After Effects: http://adobe.ly/pRYOuk

Render Times Slow on iMac Core i7 Quad

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I understand that this post was answered over a month ago, but the way that I understand to speed up FinalCut Pro is when you render with compressor, you have to setup multiple instances of Compressor using Qmaster. Look at this guide for more help: http://www.digitalrebellion.com/blog/posts/usingcompressor_with_multiplecores.html
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Extremly bad previews and render times.

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