Lag/Choppiness with 70-110 fps

nadim615 · Apr 11, 2013

Hi all,

So I'm playing Crysis 3, and I get about 70-110 fps on high settings, 1920x1080. Yet sometimes I feel like it's just lagging up on me a bit, even though I'm still at a decent FPS. Temps are all fine. Only thing I've really noticed is CPU usage can get a bit high, around 85-90%. GPU is never about 50%ish.

I'm running an FX-8350 and 2xGTX 660TI. Could an FX-8350 really be bottlenecking? Or maybe there's some settings and such I could change in the BIOS that might help? Thanks!

DarkSable · Apr 11, 2013

It's not bottlenecking - that's what's called microstuttering.

Turn off SLI and run crysis 3 again - even though it's a lower framerate, it'll feel much more smooth.

nadim615 · Apr 11, 2013

DarkSable :

Kinda defeats the purpose of the second card.. :/ I thought MicroStutter wasn't that noticeable?

EDIT:
Is there any way then to make any sort of use of the second card without getting Microstutter? It's gonna be a real shame to have a second GPU sitting in my system that does absolutely nothing.. :/

DarkSable · Apr 11, 2013

It does kinda seem pointless, but I'm saying that it's worth trying to see if it works.

The other thing that I'm thinking about is that the 660ti can bottleneck when it comes to the VRAM - I'd imagine that on a high resolution monitor, It'd get even worse. Try turning off AA and AF and see if that helps any.

bystander · Apr 11, 2013

Those FPS seem much higher than possible with that setup. Does that motherboard support Lucid technology by chance? Lucid MVP virtu can inflate your FPS reading, even though it is much lower.

nadim615 · Apr 11, 2013

DarkSable :

Really? I thought 2GB of VRAM should be more than enough for 1080p.. Hm. Either way, I did a little bit more research, and I found out turning down the post-processing sometimes helped. It really did xD Next to no stutter now (even with SLI). Thanks for the help though

bystander :

Really? I thought 70-110 fps didn't seem that unreasonable with 2 660TI's and an 8350.. And in regards to Lucid, I have no clue xD I use FRAPS to see my FPS. I have a Crosshair V Formula-Z, got no clue what Lucid is though or anything.

DarkSable · Apr 11, 2013

2 GB of vram is fine - that's not the bottleneck. The bottleneck is that the ram itself is only given a very limited bandwidth, which means out of that 2GB, you can really only make use of 1.2 or 1.3 GB before you get bottlenecking, which might easily look like the symptoms you have here. The reason I suggest you turn of AA and AF to see if that fixes it is because that'll drastically reduce your VRAM usage to the point where it should alleviate that bandwidth issue, if that's what's causing it.

As for the fps, that's insanely high for ultra, but you're playing on high settings, correct? It seems pretty reasonable for that.

nadim615 · Apr 12, 2013

DarkSable :

Yea, it's on high. And the GPU's are factory overclocked as well, they're getting boost clocks of up to like 1150MHz.. xD

DarkSable · Apr 12, 2013

nadim615 :

Those are pretty nice clocks! But yeah, try playing with AA and AF off and tell us if that makes a difference at all.

nadim615 · Apr 13, 2013

DarkSable :

It'll probably be like a week, I'm stuck at my moms for a week >:O My PC's at my dads :S

DarkSable · Apr 13, 2013

Alright - just let us know when you get back.

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Lag/Choppiness with 70-110 fps

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