Sorry if this question has been answered before, I searched but was having trouble finding a solution. I just got my MBP today and I am excited to test its full capabilities. To activate the dedicated graphics card, do I just switch "Graphics: Higher performance"under Energy Saver? As I understand it, that should do it. The reason I'm just confused, is I downloaded the Doom 3 demo and tried playing it at high settings, and it had a poor FPS and lagged. Then I tested it under both "Higher performance" and "Better battery life" for graphics, and it seemed to run at the exact same rate, looking a bit choppy. What gives? Am I not activating the graphics card right? I thought the dedicated graphics were supposed to be much better. Thank you in advance for any help!