> IVB is adequate for retina display ... if paired with a sidecar like the GeForce GT650M. Or used solely for typing and similar non-graphically-intensive activ

> IVB is adequate for retina display ... if paired with a sidecar like the GeForce GT650M. Or used solely for typing and similar non-graphically-intensive activities. (As on this rMBP 15"). Completely agree -- I think there were early performance issues which were due to unoptimised drivers causing e.g. laggy Safari scrolling and that's caused a lot of misinformation to be out there. The truth is that, in practice, the IVB GPU has been more than fine for me unless I'm doing something that would require a dedicated GPU anyway.