Hmmm...wait a minute...
Its very loud from startup ?
That indicates OSX cant control the card.
I had the issue with the 470 on Snow Leopard before I spliced in the Quadro drivers.
The only way to find out, no wait, there is two, is to run either the Resolve benchmark I designed or just the simple Cuda-Z app.
Here the benchmark, you need to replace the file in question with yours, found in the installer.
https://www.yousendit.com/download/ZUdzY05nTXZENlJjR0E9PQ
And here the CUDA test thing :
http://sourceforge.net/projects/cuda-z/files/cuda-z/Beta/CUDA-Z-0.6.133-SVN...
This one should show around 600 GFlops or more for the Q4000
GT 120 = 88
GTX285 = 600
GTX470 = 1100
GTX570 = 1300
Resolve should run just fine with a node or two on the Radeon I guess.
But try to put some load on it, then the GTX cards show their muscles.
A slice of color...
DaVinci 8.0.1 OSX 10.7
MacPro 5.1 2x2,4 24GB
RAID0 8TB eSata 6TB
GTX 470 / GT 120
Extreme 3D+ WAVE
http://www.saschahaber.com
