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I bet the graphics won't be better than Crysis 2 using DX11.
You didn't notice crysis 2 was less stressful on your system than the first one?
Anyway, most of us will need an upgrade, there hasn't really been any over the past year and with no massive jumps in gpu power it's not surprising.
Besides, BF2 crippled a lot of pcs, I'm just glad someone is still producing games that really push pc hardware.