AMD Athlon x2 BE 2.7 GHZ, AMD Radeon HD 6870 1GB DDR 5, 2GB DDR2 RAM
They're not texture shadows, they're stencil shadows. Which is much heavier than if I was using a low-size shadow texture map(which I probably will later just to give it a smooth look). I was considering importing GIA instead but it's harder than it sounds... particularly with the current UV mapping problems. :X
Also, I'm not streaming the terrain in a radius like the game does so I'm mostly rendering useless junk around. But it's not a matter of RAM either, including objects RAM usage for that stage is around 400 mb. And yes, it's polygon heavy.