this is my first post on this forum, after having made several unsuccessful searches.
I have a brand new PC, with a GTX 460 graphics card, an i7-950 CPU, 4GB DDR3 RAM, and Windows 7 64 bit.
The nVidia control panel says I have the 258.96 version of the driver.
Several things make me think that Cuda is not working:
- Sony Vegas Movie Studio Platinum HD (a movie editor software), does not go faster when I activate the GPU computing based on Cuda for rendering movies
- the monitoring tool GPU-z shows 0% of GPU usage when rendering is activated
- another video encoding software, TMPGenc 4 Xpress, only shows 10% of GPU usage on GPU-z when converting movies, while it claims to be able to leverage Cuda (and the auto-calibration option says it can allocate 50% of the workload to the GPU, and 50% to the CPU)
- I have been said that Windows 7 can by default lock some graphical resources which make Cuda unusable to other software, so it could be true on my machine.
- I have read that Badaboom is not currently working with the GTX 460/470/480 graphics card, which makes me think that these graphics card (including mine) have a specific version of Cuda, which might not be recognized by other Cuda-enabled software.
So, I am wondering why I can’t get more of my GPU, and I would like you to help me:
how can I test that Cuda is working: which program can I install and run to load the GPU at its maximum, and which other program could show me that the GPU is actually working (and not the CPU only)?
do I have something to do on my Windows settings (or BIOS ??) to activate Cuda?
Many thanks in advance for your help!