Hi, I'm weighing up whether to get the base or mid-level rMBP 15. I'm trying to find out whether the dGPU will be of any use to me, and would appreciate any input on which applications actually use the dGPU to good effect. Can anyone tell me whether the following apps will use the dGPU: 1) Any of the standard Apple apps included with a new MBP, e.g. Safari, iTunes, Maps, iPhoto, iMovie etc. 2) Final Cut Pro X (I have heard it does, but don't know to what extend it is better Iris Pro). I only use this very infrequently (for editing holiday videos once a year!) 2b) Xcode Are there any optimisations to use the dGPU for application processing? (GPGPU). 3) Microsoft Office for Mac 4) Media players such as VLC or QuickTime 5) VMWare Fusion and its guest VMs Can Windows or Linux VMs benefit from the dGPU? 6) Windows 7 under BootCamp I'm pretty sure that Windows has drivers for the dGPU - however, is this always active, or can it be disabled to save battery life when booted into Windows? Note: I do not intend to play any games on this computer. Thanks for any information you can provide! John.