I know these topics no doubt pollute the forum, but in fairness I’ve not done a good job at searching around here. (Hands up - sorry!)
I am looking at the start of a third day rendering out a 1080p 260 frame animation on my GTX980, it’s chompping away at 1024 tiles at around 35-40mins per frame.
I happen to have a X58 motherboard and i7-930 sat in a box doing nothing and thought crossed my mind to pick up 3 x GTX650/750 ti on the used market and put them to force labour in rendering. However that would be ~£100 to £150 of gfx cards that more than likely would be out paced by a single £150 gfx like a GTX780?
This machine won’t get a whole lot of use, so the onward march of technology will soon eclipse the second hand equipment used, what with eevee just around the corner.
So if you’ve got experience or some tasty links to blender benchmarks of cards like the 650/750ti I can soon evaluate what my return could be. Since the total spend is looking to be £250-300 anyways what with case/psu/storage.