Mac OS X 10.11.6 users. Freezes computer when using using Blender 2.8 and up (2.8.3)

Question for Mac users. I have been trying to learn Blender after the 2.8 releases. I am using and Early 2008 Mac Pro with a pretty week graphics card. (NVIDIA GeForce GTX 285 1024 MB) so it can not handle Eveee well. (sucks cuz, I really want to use realtime rendering) I use Cycles. Although I still seem to crash, and it actually freezes my computer for about 2-3 mins, then releases. I install new builds as they get posted but still crash/ freeze. I wonder if its more a graphics card problem since there is only 1024 MB.