Does anyone have a suggestion for a GPU that will fit a small form factor, but still allow me to use the GPU rendering and other features that CC has built in to take advantage of the GPU? I see this list but am unsure if there any that can be put in a small form factor PC. They are powerful machines (i7 4770, 8gb of ram), but just are lacking the GPU support for all the Adobe Apps!
Since I do not know SFF cases, why don't you ask the case vendor for a list of cards that fit that case? Of course the biggest problem might be the power supply.
Check out this half-height GT630???? It has lousy memory bandwidth because it is DDR3 memory and I could not see how many CUDA cores, might only be a paltry 96. May not be better than MPE software only.
8GB of ram is really to low for the GPU acceleration. You really want 16GB to fully make use of the video card. What case are you referring to?