Baking Realtime GI for very large worlds is crashing

Hello. I have a problem with baking Realtime GI for large worlds. I have 2 sets of scenes. First set includes 100 scenes, and size of jobs(clustering, light transport, etc.) for this set is about 800 jobs. Realtime GI bakes successfully. Second set includes 1024 scenes, and size of jobs for this set is about 1050 jobs, but when i start baking GI for this scenes then Unity always crashes during the baking. I bake GI on MBP Pro with Core i7, 16 GB RAM and SSD. I think that it is not enough RAM for baking 1024 scenes with 1050 jobs. Am i right in that or it is problem with Unity, not with my hardware? The main problem is that i don't have an opportunity to test it on another hardware.