I have been playing a variety of games on my MBP and sometimes forget to switch to dedicated using gfxCardStatus. The outcome is what I am impressed with, especially after the fact I installed hyperX 1867mhz a few months back. I posted below, Xbench results of both the Intel HD 3000 512MB and the AMD 6750m 1GB using only Memory test, Quartz Graphics test, and Open GL test. These are pretty satisfying results, coming from an IGPU. I would also like to see results from others regarding 8GB of ram, as I would like to compare the memory speeds as well.