Iris Pro running Bioshock and Photoshop smoother than 750M???

[js09]

Your old PC doesnt run it in HiDPI-mode. As of now, it seems that more demanding retina apps don't run very smoothly on even the most powerful macs.

I'm using the same external monitor (ACD 27") as I was with my 5 year old PC. the macbook is closed. Same PPI.

 

[thekev]

Hard to justify a 750M until/if they fix the driver issues. Maybe apple is dragging their feet to get us raging so that when they finally do drop dgpus from the lineup we won't complain as much

Does anyone here notice real world performance boosts in anything using the 750m over the iris pro?

Photoshop doesn't really require much in the way of gpu power, relative to the speed of the current generation of gpus. That you experienced a difference there suggests that it is indeed a bug.