Okay, screens and the selected graphics option. I'm starting on HIGH with no MSAA (this is my setting during MP).
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Now on ULTRA with no MSAA.
Notice any difference? Cos i don't, if you think its awesome and much better, you are high on something else.
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Here's default (w/ HBAO) HIGH vs ULTRA with 4xMSAA. Guess which one has 4xMSAA enabled?
So you can enjoy your 4xMSAA crippling even a gtx580 in 64MP for no visual difference, just because you're a dumb NV fanboy. Go ahead.
And no, even if AMD hardware ran 4xMSAA better, i would still say the same, it's a very poor AA mode for BF3. If people want a fair performance comparison, it should be on default HIGH. Ultra will penalize cards with more vram since it will stream in high mesh/texture and additional objects further from your view distance causing extra strain on the GPU.