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BF3 lag
- Thread starter casual123
- Start date
Soldato
- Joined
- 25 Sep 2009
- Posts
- 10,207
- Location
- Billericay, UK
To rule out vram issues try running your crossfire cards at the same settings that you were using when you played BF3 with a single card. If you don't get any more lag spikes/FPS drops then start turning up some of the settings one by one until you get the same issue then roll it back to the previous setting for optimal balance between IQ and performance.
Running BF3 with the MSI afterburner overlay would help as well (shows you GPU statistics).
Running BF3 with the MSI afterburner overlay would help as well (shows you GPU statistics).
Associate
- Joined
- 10 Jan 2012
- Posts
- 2,375
Use this command to find out if its cpu or gpu causing it
Render.PerfOverlayVisible 1
Render.PerfOverlayVisible 1
This, 2GB min for BF:3 imo.
This.
He's already done that, said he had no luck.
This.
If it's crap at low it's something else...Been trying to push my cpu further, just locks up after 3.6ghz, i am upgrading cpu/mobo in a few months but still want to get bf3 smooth for now
settings on low doesnt make a difference,same fps and performance, as for Render.PerfOverlayVisible 1 the cpu numbers are lower than the gpu, i had way better performance than this with 1 6850 and my [email protected]..... argh
EDIT: high settings now im only getting about 30-40 fps... both gpus are at around the same usage, havnt seen them going over 65% yet...
EDIT: high settings now im only getting about 30-40 fps... both gpus are at around the same usage, havnt seen them going over 65% yet...
Last edited:
tried this, also tried high settings again but now getting even worse performance @ only 30-40 fps , havnt seen the gpu usage on both cards go over 65%
It seems like a CPU bottleneck especially if the CPU nums are lower than GPU nums. A new processor or a huge OC is your best bet.
Make sure you shut down all other programs after you start playing, battlelog etc.
When using firefox i would find that sometimes battlelog could use up to 25% cpu usage. Also disable origin overlay as that can use cpu resources.
When using firefox i would find that sometimes battlelog could use up to 25% cpu usage. Also disable origin overlay as that can use cpu resources.
xFired 6850's can't be anymore powerful than what i'm running.
My GPU is always at 97 / 98 / 99% with vSync off.
Do you want me to turn 2 of my cores off and down clock it to 3.6Ghz? it's a bit of a palaver but it might help answer the question of CPU bottle necks.
Also have a look at this, you might find that useful http://www.overclockers.com/forums/showthread.php?t=717129
My GPU is always at 97 / 98 / 99% with vSync off.
Do you want me to turn 2 of my cores off and down clock it to 3.6Ghz? it's a bit of a palaver but it might help answer the question of CPU bottle necks.
Also have a look at this, you might find that useful http://www.overclockers.com/forums/showthread.php?t=717129
Caporegime
- Joined
- 18 Sep 2009
- Posts
- 30,502
- Location
- Dormanstown.
Thing is Humbug, you're higher clocked and all 6 of your CPU's are being quite heavily utilised.
6850 Crossfire is probably a fair bit better than the 7870 at stock, but at your clock the 7870 will be better.
6850 Crossfire is probably a fair bit better than the 7870 at stock, but at your clock the 7870 will be better.
Also this, download Advanced System Care and use the active boost mode and you can shut down all unnecessary processes and disable aero in there, it frees up RAM and should help performance a bit.