Specs: Windows 7 Home Premium 64-bit Intel Core i7 CPU 920 @ 2.67GHz 8 CPUs ~2.7GHz 3072MB RAM 487 GB 7200 RPM HD NVIDIA GeForce GTX 480 1536MB Some of that was detected by a program; I'm not the best with hardware. So, intensively watching task manager for quite a while, CPU usage is very sporadic, and unpredictable. 4-6 CPUs at best are in use, while the others are barely, or not at all. At least 1 always reaches 100 percent - it's not always CPU 1. I've tried many various graphics settings. I found an old post stating turn off threaded optimization in the Nvidia CP, but that didn't make a difference. Most of those settings don't even pertain to OpenGL, as far as I know.