Some practical experience.... My specs are: Retina MBP 2.7Ghz, 16GB ram, 512 SSD, Resolume 4.1.1. I've hooked up an HDTV plus PJ to my Retina MBP using one Thunderbolt and the HDMI port. Performance was fine running a couple layers with a few effects, then some mask/crop on the output config. I can ...