I am having this EXACT same problem. I can play around 60 FPS full ultra in campaign, but in multiplayer I will get stuttering and random lag spikes, very noticable and very annoying. Even on LOW settings I will hover around 130 fps then have lag and frame rate drops to 30 fps.
I've repaired, reinstalled, updated drivers, etc etc etc. No fix.
And I have the same build.
AMD FX 8350 @ 4.88 GHz
EVGA 770 2GB Superclocked
16 GB RAM
Windows 7 64 bit
SSD
At this point, I'm just waiting for some form of client update or driver update, because the volley of server updates are doing nothing to help my gameplay. And I would really prefer not to upgrade to Win8.
Same problem here. I'm running a Gaming Laptop with a 765m Nvidia graphics card and 4gb ram. The energy settings are on max, the CPU i7 4700 c runs on 60% load... Ingame it almost freezes for up to one second randomly all ~10 sec... Almost always when u start using a scope. On all detail settings the same problem. Singleplayer is smoove though.
