F@H has just announced support for Nvidia GPU's utilising CUDA wtih the new GPU2 Client and should be beta testing within a few weeks.

-Lucus

3. I will need to re-read some threads and articles about gpu's, and the problems specifically related to nVidia (there were reasons why up until present that F@H only used ATI and not nVidia), before I comment futher, other than noting what F@H has already stated:

The GPU client is still the fastest, but it is the least flexible and can only run a very, very limited set of WUs. Thus, its points are not linearly proportional to the speed increase. The PS3 takes the middle ground between GPUs (extreme speed, but at limited types of WU's) and CPU's (less speed, but more flexibility in types of WUs).

So, gpu's may be very fast, but there are "very, very limited" instances where a dc project may be able to take advantage of that speed, and it may just be that the very nature of the Project does not allow it to have the "very, very limited" types of wu's which can benefit.