So there are lots of posts where people are asking whether they should get a MBP with a dedicated graphics card or one without. Are there benchmarks that show the exact performance gap between the base and mid tier MBP 15" model? What would be the dividing line between the performance between these two machines? For example, could the integrated graphics card play a full HD movie on the apple 30" display? How much of the processor would such a task take up (effectively lowering the processor capability at the computer's saturation point)? Have the owners of the integrated graphics card MBP's ever noticed that they were using an integrated graphics card instead of a dedicated one?