If AMD get a tangible performance advantage over Nvidia a result of this, whilst remaining competitive on pricing, nvidia should at the very least be genuinely concerned.
As much as I hate the whole idea of BF4 right now, you just know the overwhelming majority of braindead, bunnyhopping, run-and-gunning, whole-clips-for-one-kill generation of BF3 players will be lapping it up as soon as they can. Hence, if AMD have the upper hand on performance, that's what they'll choose for their inevitable upgrade when the game gets released.
Will probably move to AMD when the 8970 comes out, but not for this garbage. Remove 3D spotting as default, heavily tone down the supression effect, add aiming/accuracy penalty for running to much (including limited stamina), remove health regen, reintegrate commander, etc etc, then I might consider BF4.