Hello all you rMBP owners My rMBP is arriving this morning and I have a few technical questions that need answering... I had a rMBP earlier this year (but had to return it for other reasons). I noticed that gaming frame rates weren't that great using the built-in display. I was using a lower resolution (1440x900) in boot camp with Windows 7. I couldn't raise the detail settings much. I had an idea though. Even though I was running games on the retina display at a lower resolution, does powering that hungry retina display put unnecessary stress on the GPU? If I was to put the rMBP in clamshell mode and use a medium-res (e.g 1680x1050) external monitor, would that increase frame rates as opposed to running the same resolution on the Retina display? I've heard that the GPU is almost on-par with the ATI 4870 and can be overclocked easily to reach 4870 clocks. That's pretty powerful for a mobile GPU! So my main question is, will clamshell + lower res external monitor be better for running games than simply lowering the rez on the built-in retina display? Will that increase the frame rates by reducing GPU stress?