Playback of DPX sequences with quadro nvidia

I am considering buying a nvidia quadro 4000 for mac to playback my 1080P DPX sequences out threw a BlackMagic HD Extreme 3D card.
At the moment i can do it when i select 1/2 Resolution in playback from Premiere CS 5.5.
My disk speed is about 300MB pr sek so that is not the problem.
Does annybody know if the Quadro card will give me any aceleration with that and make me able to play it back at full res ??
Thank you

> Hardware acceleration doesn't make it easier to "play" any media files (assuming they match the sequence).  What get's accelerated are certain effects, scaling, deinterlacing, blending modes, etc.  But not simple playback.
That's correct.
The graphics card doesn't help at all with decoding, nor does it help with reading the data off the disk faster. The reason that people talk about the GPU helping with formats like RED is that you are nearly always scaling RED footage down to use it (since you're almost certainly not using a 4K sequence, and you're almost certainly not previewing on a 4K monitor). The GPU helps enormously with scaling operations if you have a card that Premiere Pro can use for CUDA processing.
DPX image sequences are slow to preview for two reasons: data rate off of the hard disk and CPU speed for the relatively slow decoder. Fast disks and fast CPUs are what you need for fast DPX playback.

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