Cubix, Quadro 4000, GTX480 performance hit

[D.j. Goller]

Unfortunately. I battled this with Black Magic Support for months. In the end the only thing they could tell me that might be causing it is the memory bandwidth bottleneck in the 2008 Mac Pro Tower. I had an extremely similar setup. But with a GTX-285 in the Mac, and Quadro 4000 and Red Rocket in the Cubix. In the end I had to upgrade to a newer system with the new triple channel ram in order to get sustained playback with any reliability.

Luckily I found a job that would pay enough to cover the upgrade at the right time. I never found a way to get the 2008 3.2 GHz machine to work.

D.J.

[Perry Trest]

I’ve suspected that the 08 MacPro might be the culprit here. I tested some ProRes422HQ files and was able to get 24fps with 8 nodes of blurs, windows, tracking, etc., but ProRes4444 rarely hits up to 20fps with no nodes.

Perry Trest
POSTDIGITAL, Inc.

MacPro 8core 2.8Ghz
8GB RAM
Slot 1 = GT120
Slot 2 = Cubix HIC
Slot 3 = DeckLink SDI
Slot 4 = Nitris DX HIC
Internal 6TB software RAID-0
Tangent Wave
HP DreamColor

Cubix Desktop4
Slot1= Quadro 4000
Slot2= Empty
Slot3= GTX480
Slot4= Empty

[Perry Trest]

Problem solved.
Swapped out the 2008 8-core for a 2010 12-core and BAM!!!, the ProRes4444 project played at 24fps with multiple nodes. Thank you to all of you for your input.

Perry Trest
POSTDIGITAL, Inc.

MacPro 12core 2.66Ghz
6GB RAM
Slot 1 = ATI 5770
Slot 2 = Quadro 4000
Slot 3 = DeckLink SDI
Slot 4 = Nitris DX HIC
Internal 6TB software RAID-0
Tangent Wave
HP DreamColor