Thanks for positive comments! Glad that it works for you too, well, for most of you :)
Prerendering frames (RenderAhead) does put a lot of work onto CPU.
you can use Render.PerfOverlayVisible 1 to see the CPU usage graph, and you'll see large spikes when the stutter happens.
Lowering resolution in addition to ForceRenderAheadLimit will allow you to use much higher gfx settings, I even play with HBAO.
Another tip: you can create your own resolution in Nvidia control panel, I play on 1366x854 :)


bgrgyk 2 hours ago

I've found a way to reduce it a lot
open the console with ~ and type in these two commands:
RenderDevice.ForceRenderAheadL­imit 1
RenderDevice.TrippleBufferingE­nable 0
There exist the same settings in Nvidia Control panel but they didn't help me..
Setting ForceRenderAheadLimit to 0 seems to mean "disable", because I think that a value of zero prerendered frames would solve the problem.
In case you want to revert back, I think default values are 3 and 1 (check by entering command without number)



 

isn't BF3 heavy on video ram usage? could be the 1GB on the 465's holding you back too

ye i get that with my 280
and it does kill my eyes after a while ><

With SLI enabled, dont I have 2GB of Vram?

OV3RCLK4


With SLI enabled, dont I have 2GB of Vram?

 
No video ram is not doubled on SLI
 
Each card uses its own vram to maintain its own framebuffer to duplicate the image across the screen to give higher performance
 
don't feel bad though many others think it doubles too when its not true at all

I knew that was coming. That makes me sad 

OV3RCLK4


I knew that was coming. That makes me sad 

 
yea its part of the reason gamers want 2GB+ cards now, those that run High AA in games, texture pack mods in games or have 3 monitor surround sreen setups especially need it.

I am using 580s and I JUST have enough VRAM.  It uses 1435-1470 of my 1.5gb.  I sort of wish I had the 3gb cards now to be honest.  I am tempted to upgrade to the 680s or whatever they are when they release if they have more ram.

HippieMagic


I am using 580s and I JUST have enough VRAM.  It uses 1435-1470 of my 1.5gb.  I sort of wish I had the 3gb cards now to be honest.  I am tempted to upgrade to the 680s or whatever they are when they release if they have more ram.

on 1080p or surround?

I have two 470's and it use 1286 of vram , at 1920x1080 and i have zero issues with any stuttering or frame rates, running at 70-80 fps.

I dont have stuttering like in that video, but setting the render ahead limit to 0 just feels better to me for some reason.  I feel like Im actually hitting what Im aiming at whereas I didn't before...

I see this as well with my 580 3GB - although it's very slight, I do notice it. 

I had HORRIBLE stuttering (in both 1920x1080 AND surround until I:
 
1.)  Used Maniacs settings for NVCP
2.)  Turned OFF Hyper Threading.
 
If you haven't tried them both yet, DO IT
 
The disabling of HT stopped the stuttering ...like night and day

OV3RCLK4


With SLI enabled, dont I have 2GB of Vram?

SLI doesn't work that way with VRAM