FarCry 3 stutter in SLI

pgi947 · 11 Dec 2012 at 07:35

Wow right on the 2GB limit!!

It could be linked to the stutter, I'd imagine it's aa/post processing related.

Can someone try this on amd: rename farcry3_dx11..exe to bioshock2.exe and tell me how it runs? Not sure if BS or not but apparently this forces a better cf profile for the game...

eyetrip · 11 Dec 2012 at 07:54

Don't think the game runs too badly in sli personally. Using 310.70.

But there is definitely something up with the vsync setting in this game. Was standing at a point where no matter where I looked I got 70 to 80 fps. Enabled vsync 1 frame, and it would tank to 40.

Was expecting serious mouse lag with vsync 1 on, but it was actually quite responsive.

Vsync 2 frames tanks to 30.

The above were with 0 buffered frames (or whatever it's called)

snips86x · 11 Dec 2012 at 08:00

pgi947 said:
Exactly why I'm waiting for it to be fixed, I don't want what should be a simple fix to ruin this for me, especially as far cry 2 sucked so much

"Far Cry 2: Oh look we made fire in a video game!!"

HAAA!! Seems like the pinacle of the game. Was pretty crap to be fair.

LtMatt · 11 Dec 2012 at 08:22

eyetrip said:
Don't think the game runs too badly in sli personally. Using 310.70.

But there is definitely something up with the vsync setting in this game. Was standing at a point where no matter where I looked I got 70 to 80 fps. Enabled vsync 1 frame, and it would tank to 40.

Was expecting serious mouse lag with vsync 1 on, but it was actually quite responsive.

Vsync 2 frames tanks to 30.

The above were with 0 buffered frames (or whatever it's called)

Use triple buffering.

BaDBoY_uK · 11 Dec 2012 at 08:26

VSYNC is weird. Try forcing it in NVINSPECTOR instead as well as triple buffering. Even 1-frame lags for me.

If I switch it off, the gameplay is ace, but the cutscenes are awful!

On memory usage, BF3 maxed out has reached 2300MB for me. DX9 sweetfx FC3 hasn't gone above 1500MB

Shame I have 4GB cards!!

BaDBoY_uK · 11 Dec 2012 at 08:29

Kaapstad said:
Used all 4 GPUs - notice in the pic link below the vram usage its hugh for 1600p could this have anything to do with the problem in the OP.

http://imageshack.us/photo/my-images/687/farcryw.jpg/

What settings get >2GB VRAM?

Rusty0611 · 11 Dec 2012 at 10:29

VRAM stutters are more severe.

Kaapstad · 11 Dec 2012 at 10:37

BaDBoY_uK said:
What settings get >2GB VRAM?

everything maxed @1600p

wunkley · 11 Dec 2012 at 10:40

I remember far cry 2 having terrible stutter issues for months when it first came out, and that was using single cards. I used to run some sort of stutter fix tweaking the ini in some way. Can't remember how exactly, and I think eventually a patch or new drivers sorted it all out.
I too am waiting to play this game for a while. Ive got a hard copy still in the delivery envelope. Not played hitman yet, and waiting for my other 670 issue to get sorted so I can mess about in SLI, and have lots more issues no doubt

*Edit* - just found the tweak I used to use:

Open the console and type:
gfx_maxfps 40

This used to fix the stutter in DX10. No idea if this will work for far cry 3. 40fps was about the max my system could handle at the time so sub that for whatever. Same principle as using Dxtory or Afterburner to limit your max frame rate I guess, but done in game rather than by a third party app.

BaDBoY_uK · 11 Dec 2012 at 12:05

Try setting max FPS in MSI AB at 62... seems to work for me. 60fps is fine!!

Gregster · 11 Dec 2012 at 14:12

I can play with settings on max at 5760*1080 and VRAM isn't an issue. The stutter is bad at those settings though, in a non playable way.

Kaapstad · 11 Dec 2012 at 14:49

gregster said:
I can play with settings on max at 5760*1080 and VRAM isn't an issue. The stutter is bad at those settings though, in a non playable way.

How much vram are you using

Did you see my pic earlier in this thread with mine using the full 2gbs

BaDBoY_uK · 11 Dec 2012 at 16:18

gregster said:
I can play with settings on max at 5760*1080 and VRAM isn't an issue. The stutter is bad at those settings though, in a non playable way.

Try using the MSI AB trick mate. Also put the setting of maximum pre-rendered frames down to 1 - both in-game and in NVINSPECTOR (if you have NV).

When I used to play BF3 at that res, I used to get bad stuttering with trifire. With the MSI AB trick and "renderaheadlimit 1", it became more than playable

Good luck... oh and let me know, as I may be going surround

Addicted · 11 Dec 2012 at 16:24

Kaapstad said:
Yes I have 2 HD 7970s hence the quad sli.

On a serious note at some point I want to run Far Cry 3 on my HD 7970s to see if the memory usage goes above 2 gbs per GPU. The highest memory usage I have seen at 1600p before this was BF3 which was about 1800mbs per GPU.

Memory is only used on the first GPU when in CrossFire/SLi, so how did you manage that

Kaapstad · 11 Dec 2012 at 16:36

Addicted said:
Memory is only used on the first GPU when in CrossFire/SLi, so how did you manage that

No its used on all GPUs in the setup. The memory on each GPU sees the same info as all the others. This is why SLI/Xfire setups can not stack memory.

http://imageshack.us/photo/my-images/687/farcryw.jpg/

Checkout the memory usage in the link above.

OptimaLnrg · 11 Dec 2012 at 22:08

1080p here and no stutter. 310.70.

Gregster · 11 Dec 2012 at 22:46

Well I completed the game

and I now look forward to a patch/driver that will sort this out for triple screens and I will play through it again.

Tonester0011 · 11 Dec 2012 at 22:54

gregster said:
Well I completed the game and I now look forward to a patch/driver that will sort this out for triple screens and I will play through it again.

You played through despite the stuttering?
Out of 10, how much would you rate the game (stuttering and all, i'm at the start - wanna play)

Gregster · 11 Dec 2012 at 22:56

Tonester0011 said:
You played through despite the stuttering?
Out of 10, how much would you rate the game (stuttering and all, i'm at the start - wanna play)

It is a 10 for me

The stutter wasn't that bad tbh and as I said previous, it wasn't a game breaker. It has been a while since a single player fps has kept me engrossed.

Tonester0011 · 11 Dec 2012 at 22:58

gregster said:
It is a 10 for me The stutter wasn't that bad tbh and as I said previous, it wasn't a game breaker. It has been a while since a single player fps has kept me engrossed.

I'm going to see if my rubbish camera can pick up the stutter in my game (possibly worse than the top video)

What i would call game breaking unfortunately. Annoyingly it works flawlessly on my brothers computer, albeit on medium/high.