Would a Quadro K2200 be any good for Vegas Pro 15? Other options I've been looking at are GTX cards but they look really big and I am worried they are loud while the Quadro is slim and has a small fan.
Can't speak for V15 as I've not upgraded. I've a Quadro P2000 which seems, for the most part, to work very well in V14. (I say mostly because I have a situation where I can't use the GPU to render or I get some weird stuttering.) I would suggest looking at the P2000 since it appears to be only slightly more than the K2200 and certainly has more hardware ooomph (this was certainly not true as of release date but things have changed). As a side note, I spent some time researching Quadro vs GTX and opted for Quadro based on how the hardware is more structured for rendering. GTX seems a bit more oriented toward game graphics (I did use a GTX 670 for a long time however.). I certainly got a dose of new respect for companies having to support both types of video cards as they are architecturally quite different. Also, I have not spent any time bmk'ing; just went off specs, architecture, and wallet.
A Quadro K2200 is not very strong in terms of CUDA cores. I use a K4200 for Vegas 15 and this card supports the nvidia CUDA based encoding in a nice way, and reduces rendertimes dramatically.
This is a huge difference between VP14 and 15. With the appropriate NVIDIA drivers a Quadro K2200 should work too. But the time reduction will be lower compared to my K4200 I assume.
Thanks for the feedback. So I am looking now at 2 options - either GTX 1050 (or 980) or the K2200. My guess is that the K2200 might be slightly slower but hopefully quieter?