For the record. I spend a good few hours going through this so I'll spill my info for those so you don't have to.. I still haven't found a fix.
AMD FX 4100 Quad / ASUS Sabertooth 990FX
16GB Corsair Dom
MSI GTX550 TI 1gb - I have tried drivers:
275.33, 285.38, 285.79, 296.10, 301.10, 301.42, and I'm now on 304.79.
I only get stutters in Multiplayer.
I see alot of cpu activity running bf3. alot. almost peak on all 4 cores.
So I'm narrowing down possibilities.
I've tried every in game rendering code as well as every suggested combination of settings. I updated bios for motherboard and all drivers. I'm also on an ssd. I have played this before flawlessly with my system and all of a sudden I'm getting the stutters when I reinstalled the game to play it. ..... Bullshit.
Stuttering every 3 steps. And mouse lag as well if you are in a tank or something hard to lock on when it moves after you do. Ruins Battlefield 3 for now.
HELP NVIDIA. FUNK
I hit http://www.speakeasy.net
and gave my connection here in the studio a speed test.
I'm limited to 1.4 mbps down
. and my up is higher. So I'm thinking this is where the problem may be, and possibly being worse as others are on the network. I only achieve 5.0 mbps right next to the hub on my mbpro. I'll be getting a brand new ethernet patch to see if I can get rid of the stutter and hoping its from intermittent lag due to bottle neck in the cable. (It has to be older Cat5)