How to know if my GPU is running at its best

[okitavio]

Hi, everyone!
This is my first hackintosh, and now everything is fine. But I was wondering if there's any way to know if my nVidia Geforce 9400 GT 1Gb VRAM is running at 100%, because some games are running a bit slow. I didn't install any drivers (nVidia doesn't provide drivers for OS X for this graphics card), and it was recognized from the vey beginning by OS X. All i know is that I have full resolution and that full HD videos, for example, look grate.
So, can I know if my GPU is running the way it should?
Thanks in advance

PD: I think CUDA drivers are not for my GPU, is that right?
And sorry for my bad english, I'm from Argentina

 

[slugnet]

You can use one of the recommended benchmark programs in this post: http://www.tonymacx86.com/graphics/48498-graphics-benchmark-programs.html

 

[okitavio]

Thanks for the quick answer.
Well, it worked like ****. What now? BTW, my computer is a little out of date, so I don't expect much out of it.
But how can I know if this is the best it can do?
Thanks again

 

[slugnet]

Compare your benchmark score to other scores. For instance, Luxmark has a searchable database of scores here: http://www.luxrender.net/luxmark/search/search

How does your score rank against other cards of the same or similar type? That should tell you if you are in the ballpark of performance, or if there are issues.