Just bought a MBP Retina. Maxed out with everything they've got there at Apple. Here's a screen shot of what my preferences look like. 
Two things stand out: 1. the GPU option says "unsupported" and 2. of the 2GB of Usable Memory, I only am using 732 mb. I had all applications closed and and no external harware plugged in. Any thoughts on how I can use more of my memory?
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ray-traced 3D renderer and GT 750M
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