clock speed or pixel question - 6800gt

[APCOR]

I was wondering if anyone would know where I should focus my efforts to alleviate symptoms of stuttering for complete smooth gameplay. I have mostly smooth gameplay about 60-70% of the time playing Doom3 and Far Cry (no stuttering in HL2 oddly 99% smooth). I dont know if it is of any relevance but I have noticed the stuttering in Doom 3 only occurs when FPS dips below 50. Have also considered I have a 27 inch LCD and have more pixels to fill per unit as opposed to most others using 17-21 inch LCD's. Could anyone offer any technical insight as to how to achieve 95% or more smooth gameplay? Clock card higher or ditch monitor all together maybe?

PS I usually play at 1024x768 with medium AA/AF (usually 4AA/4AF) -

dimension 8400 - P4 (3.4ghz)
1 gig DDR2 ram - 80 gig HD
6800GT clocked at 400/1100 (stable no artifacting) temps idle at 58 - 75-77 under load
400 watt Antec PSU

Syntax Olevia 27" LCD - 12ms response - using 85hz refresh

 

[Munky]

I dont know about the stuttering, but if you play at 1024*768 resolution, then that's exactly how many pixels your card has to draw, regardless of screen size. The 6800gt should definitely be able to handle that resolution, so looks like the rest of your system is slowing it down, maybe you have some programs or spyware running in the background.

 

[mwmorph]

ditch the p4. a 3200+ will outperform that for far less money.
if you cant do that, you might just be a candidate for sli (WOW one of the few people that actually need it!)
be sure to upgrade your psu if you sli though.

btw, fps above 35 for most people shouldnt be choppy. >50 is quite a high minimum.
also, defrag your hdd, and check for background processes.
set your resolution to 1280x720. that's the true native resolution.

also, native response time for a normal tv is 60hz(maybe, i think) swtting it above that might degrade your exprience.

 

[Elfear]

Do you have V-sync enabled?

 

[APCOR]

I have all programs including virus shut down and disabled. BTW I have run a full system scan for viruses, ran my spyware exterminator and defragged HD.

 

[APCOR]

Originally posted by: Elfear
Do you have V-sync enabled?

yep - get tearing without it

 

[APCOR]

Originally posted by: mwmorph
ditch the p4. a 3200+ will outperform that for far less money.
if you cant do that, you might just be a candidate for sli (WOW one of the few people that actually need it!)
be sure to upgrade your psu if you sli though.

btw, fps above 35 for most people shouldnt be choppy. >50 is quite a high minimum.
also, defrag your hdd, and check for background processes.
set your resolution to 1280x720. that's the true native resolution.

also, native response time for a normal tv is 60hz(maybe, i think) swtting it above that might degrade your exprience.

Well, at this point I cant afford to upgrade my cpu (this system is 3 months old - cashed out). As far as My FPS goes I always heard that 30 or higher is good. I cannot explain what is happening just made an observation while my FPS counter was on. 50 or higher I can look around no stuttering, below 50 I stutter. Setting my native res to 1280x720 makes my screen look streched funny so I always keep it at 1024x768. I have heard making a custom profile using powerstrip but could not figure out how and techs at syntax told me it would not make a difference (not that I trust them though).

 

[Genx87]

Make sure no other device is using the the same interupt as the video card. I had a problem like this with a G400. My video and Nic were sharing an interupt. It would cause stuttering and in the worst situations hardlock the machine.

 

[peleejosh]

I think it could be the fact that you are running the games at something other than the lcd's native resolution. Sometimes that can make things screwy.

 

[APCOR]

Originally posted by: Genx87
Make sure no other device is using the the same interupt as the video card. I had a problem like this with a G400. My video and Nic were sharing an interupt. It would cause stuttering and in the worst situations hardlock the machine.

Whoa! Could you put that in Noob terms? I dont know how to determine what interrupts are being shared or what or how to verify or change them.

 

[mwmorph]

control panel-system-device managers-properties-then check if there are any problems.

 

[APCOR]

Originally posted by: mwmorph
control panel-system-device managers-properties-then check if there are any problems.

Don't know what an interrupt is there or not but did what you said and looked under display adapters and the only thing listed was Nvidia 6800 series gpu

 

[cbehnken]

Go to device manager. Click View->Resources by Connection

Click on IRQs

See if any are shared..

 

[kylebisme]

Originally posted by: APCOR

Originally posted by: Elfear
Do you have V-sync enabled?

yep - get tearing without it

But you get studdering too, turn vsync off and the studdering will go away as well. Or swap out the Nvdia card for an ATI so you can use triple buffering in OpenGL and not have to worry about tearing or studdering.

 

[APCOR]

Originally posted by: TheSnowman

Originally posted by: APCOR

Originally posted by: Elfear
Do you have V-sync enabled?

yep - get tearing without it

But you get studdering too, turn vsync off and the studdering will go away as well. Or swap out the Nvdia card for an ATI so you can use triple buffering in OpenGL and not have to worry about tearing or studdering.

Believe me I have thought of it - would love to have t-buffering on an 800xt

 

[APCOR]

Originally posted by: cbehnken
Go to device manager. Click View->Resources by Connection

Click on IRQs

See if any are shared..

Sorry missed that post last night - wont be able to check until tonight. Looked at that menu on work computer so at least now i can check (thanks). My question is though if there is sharing how do allocate (say a usb or soundcard device that is sharing a channel with video card) to a different channel in winXP.