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Nvidia acknowledge Stutter problem!

I'm really sensitive to stuttering in anything, I can't even watch BDs in anything other than it's native refresh rate now. I don't know why I've suddenly become so sensitive to it. When BF3 first came out it was the first time I'd got stuttering on a xfire setup and had to stop playing it. They did sort it in the end but I've since moved onto a single card.

I'd have to take the card you until they fix it though, and I'd be thoroughly cheesed off. Hopefully they'll fix it soon because peeps have paid a lot of cash for these high end cards. :(
 
gregster said:
If you are suffering the stuttering, I could imagine it realy cheesing me off, so do hope it gets fixed for anyone suffering soon. Just seems strange to me, that the games I have played, it is real smooth with no stuttering at all:confused:
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psychodil said:
Well clearly its not affecting everyone, or else I'm sure the nvidia forums thread would be a lot longer than it is :)
Glad yours is working fine, perhaps it is some kind of conflict with other programs and therefore only affecting some people?
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Just bumping this thread rather than clogging up the official 670 one...

Despite initially thinking people were just being over sensitive, I have tonight noticed the issue myself. Playing an older game (GTR Evo) maxed out at 1080p 120hz, my GPU is only running at between 300-800MHz (about 40% load) according to EVGA Precisions onscreen display. This is fine until the screen gets busy then the frame rate drops to 30 - 80 fps but the GPU happily sits there at under 50% load like it doesn't realise that it's running jerkily.

Switching 3D Vision mode on and it gets really bad! Sub 30 fps most of the time, but still the GPU only runs at about 400-700MHz max. My GTX460 could run the same game in 3D at 60fps solidly so the card is more than capable - IF it would run at full speed.

I've tried vsync on in games with adaptive sync in the driver, vsync off but adaptive on, and finally vsync completely off - always the same result. I did record a video of all this happening but I can't convert / upload it yet because Adobe Premiere is a bag of poo.
 
Pic below shows GPU power / clock / temp and load.

Top image is (supposedly) 120hz, bottom image is with 3D Vision switched on...

2hf6hqp.jpg
 
ed79 said:
Just bumping this thread rather than clogging up the official 670 one...

Despite initially thinking people were just being over sensitive, I have tonight noticed the issue myself. Playing an older game (GTR Evo) maxed out at 1080p 120hz, my GPU is only running at between 300-800MHz (about 40% load) according to EVGA Precisions onscreen display. This is fine until the screen gets busy then the frame rate drops to 30 - 80 fps but the GPU happily sits there at under 50% load like it doesn't realise that it's running jerkily.

Switching 3D Vision mode on and it gets really bad! Sub 30 fps most of the time, but still the GPU only runs at about 400-700MHz max. My GTX460 could run the same game in 3D at 60fps solidly so the card is more than capable - IF it would run at full speed.

I've tried vsync on in games with adaptive sync in the driver, vsync off but adaptive on, and finally vsync completely off - always the same result. I did record a video of all this happening but I can't convert / upload it yet because Adobe Premiere is a bag of poo.
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What CPU are you using may I ask?
 
This is just cpu bottleneck ed... it's an older game so not properly multicore aware hence the low usage on cpu which is then causing low gpu usage

try oc-ing higher and your fps will improve... though a q6600 at 3.0ghz will heavily bottleneck a gtx670 in all games even newer ones

my q6600 at 3.6ghz started to bottleneck a gtx580 by about 5-10% so a q6600 at 3.0 will be bottlenecking a gtx 670 by at least 30-40%
 
I don't think in this case it is the CPU as the same system but with my old GTX460 used to run this game at 120fps (or 60fps in 3D) 95% of the time.

Also enabling 3D mode now halves the frame rate so again this points at the GPU.

Gotta go to bed now but I'll test a bit more tomorrow!
 
ed79 said:
Q6600 (at 3GHz) - I forgot to add to my post above that I did wonder about that, so went back and checked but in task manager CPU use was showing about 33% across all 4 cores.

http://i45.tinypic.com/veq1ae.png
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Looks like the game definitely use no more than two threads, and only 1-2 cores on Q6600 at 3.0GHz would definitely bottleneck a GTX670.

When I had my Q6600 at 3.6GHz, it would bottleneck even my 5850 in games that use less than 4 cores...so I don't know why you would think your Q6600 at 3.0GHz wouldn't bottleneck a GTX670...

With that said, Q6600 at 3.0GHz should be more capable than the performance you shown in older games...so it could really be driver issue...but don't think it's really anything to do with shuttering.
 
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Even a stock clocked i5-2500k has been known to bottleneck the latest cards, your Q6600 is bottlenecking.

The reason it wasn't as bad on a lesser GPU is the PCI lane/CPU didn't have as much graphical data to handle, you're literally flooding the PCI lane to the CPU with more information from the 670 than it can process, so it bottlenecks.
 
ed79 said:
But running the same game, with the same settings, in the same same system, but different graphics card and now less than half the frame rate?
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As said...the CPU bottleneck is probably not directly related to the unique scenerio if the poor performance in your suggested game, as you have said it you were running it fine with the same system but a GTX460 before.

I think most people (myself included) is just saying generally speaking, regardless of the game you specifically mentioned...the Q6600 at 3.0GHZ WILL bottleneck the GTX670...so you probably should look into saving up and investing on upgrading the rest of your system in the future. I mean you bought a GTX670 you would want GTX670 performance, not to have it only delivering GTX460 performance due CPU bottleneck. Hope that clear things up :)
 
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This could be the problem i get, BF3 runs smooth on high settings but every now and again it gets choppy but only a little, so i restart the game and its fine again :s
 
Its not a bottleneck, its the boost failing to recognise load on the card, happens to me, with a 2600K @ 5ghz. Even something as low demand as fifa12 stutters away at 380mhz
 
Marine-RX179 said:
I think most people (myself included) is just saying generally speaking, regardless of the game you specifically mentioned...the Q6600 at 3.0GHZ WILL bottleneck the GTX670...so you probably should look into saving up and investing on upgrading the rest of your system in the future. I mean you bought a GTX670 you would want GTX670 performance, not to have it only delivering GTX460 performance due CPU bottleneck. Hope that clear things up :)
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Yep, agree on that, I used to run GTX460 and i7 920 @ 3.6GHz and noticed a difference when going back to Q6600 in GTA4. But as 3D Vision hits the Gfx card so hard I reckon it'll still be mainly GPU limited.

I did try Heaven and get exactly the same score (give or take 1fps) at Normal tessellation/4x AA and Extreme/16 AA! But CPU use is still below half - weird!

I'll try GTR some more after work and also maybe Half Life 2 as I think that being an older engine may do the same thing.
 
pgi947 said:
Its not a bottleneck, its the boost failing to recognise load on the card, happens to me, with a 2600K @ 5ghz. Even something as low demand as fifa12 stutters away at 380mhz
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Yep, it does seem to be older / simpler games. Fair enough at times it can max the frame rate while running at a slower speed, but it seems not to realise that it needs to speed up again when there are more cars or trackside objects on screen.
 
If a game or benchmark is demanding enough to force the boost to cone in then even with vsync there is no stutter, as you said the trend is less demanding games.

Same with fifa, more happens on screen the card doesn't speed up to accommodate it and stutter starts.
 
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HaloUK said:
Hmmm, not great news. I hope they release a hot fix as soon as pos.
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Yes this issue has been bothering me a bit as well but not sure if my issue is the same, saying that my story sounds famailiar to others I have read on this forum and others.

For me, most games I play will sit happily at 60fps then I get a small dip to about 56-57 maybe but it produces a noticeable stutter in the frame rate and it has been driving me mad.

Have been swapping out to my old GTX 470 just to try and be sure its not me being over sensitive. But it definately doesn't happen on my old card :(

Edit - Just to add, that in my case, I monitored the GPU frequency with Precision x and there is no change during these periods, i.e. no GPU reduction or similar.
 
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Nvidia drivers dropping one frame randomly has been in the drivers for a very long time. I don't think this is the same as the 6xx stutter bug.
 
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