cross-posted from: https://sh.itjust.works/post/20257982 (got no answers there sooo... someone here has something to say? Sorry if it's out of place...)

which one wold pair up better, less bottleneck and all that, a bottleneck calculator said the 560 works better, can i trust it? Is there any other gpus i should consider? (Small budget, Brazil is complicated)

(I use linux, if that changes something)