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Davinci Running Slow with Nvidia Quadro 4800

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Haley Stibbard
Davinci Running Slow with Nvidia Quadro 4800
on Mar 15, 2013 at 3:09:27 am

Hi

Installed a Nvidia Quadro 4800 and installed Davinci Resolve and its really laggy. Wont playback in real time only gets to about 8 fps with Apple Pr Res SD quicktimes and also slow response time when setting power masks and tracking etc.
Machine has plenty of RAM (16 GB) and 8 cores.... The GPU seems to be getting bottle necked in the system somewhere but cant think of where.....Have run the same footage on another system a 2008 mac pro running 16GB which is also running the Nvidia Quadro 4800 and its playing fine....... could this the only difference is the 4,1 is using an AJA...

any thoughts?
Cheers

Here are the machine specs
Mac Pro
Model Identifier: MacPro4,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.26 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per core): 256 KB
L3 Cache (per processor): 8 MB
Memory: 16 GB


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