The query sample is interesting: it seems to be find objects (locations) nearby given point. But there is CPU-only solution to index the data properly and have 1000x faster response times: PostGIS. So if before you threw more CPU/RAM if you did not know how to make things faster in smart way, then now you throw more GPU. Anyway, for sure there can be cases where GPU -based solution could be better alternative than using traditional existing solutions like specialized indexes.
