Is that true micro stutter or just illustrating times when the fps drops really super low and you notice the change? Also I can see stuttering on both setups when you present it in slow motion
Microstutter in FC3:
http://www.youtube.com/watch?v=AV_4etDNi8E&feature=player_embedded#
To me that looks worse on the 690 than the 7970. Doesn't the 690 have some hardware solution to the MS problem? Why is it present there?
EDIT: Sorry, was posted in the other thread too.
Is that true micro stutter or just illustrating times when the fps drops really super low and you notice the change? Also I can see stuttering on both setups when you present it in slow motion
Microstutter in FC3:
http://www.youtube.com/watch?v=AV_4etDNi8E&feature=player_embedded#
To me that looks worse on the 690 than the 7970. Doesn't the 690 have some hardware solution to the MS problem? Why is it present there?
EDIT: Sorry, was posted in the other thread too.
Play back hi-speed video in slow motion obviously... but someone's gotta do it first. There may be other ways but a hi-speed cam would be effective even if it would take forever to tabulate results frame by frame.
Microstutter in FC3:
http://www.youtube.com/watch?v=AV_4etDNi8E&feature=player_embedded#
To me that looks worse on the 690 than the 7970. Doesn't the 690 have some hardware solution to the MS problem? Why is it present there?
EDIT: Sorry, was posted in the other thread too.
Would you even have to get as scientific as to go frame by frame to compare if you just watch the video's side by side and compare? Maybe even cutting the video's in half a stitching them in the middle would make it easier to see when one side jumps. That way people could use their own eyes to judge the slow motion video.
Maybe they can give us a download of the full speed video and we can try play them side by side ourselves if there is even video software that can run at least at the monitor refresh rate 60/120 fps.
Then we could at least see the subjective experience, although I don't know if this would even be beneficial, it'd still be interesting.
I don't propose this as the solution, merely an addition to any inquiry or research that will be conducted.
From what I read in the other thread...it could be an engine issue too.
Yes I can see it in both setups as well, but it is much more noticeable in the 690 setup.
the trouble with the game is, as it has already been stated, as soon as frame rates dip below 60 fps there is noticeable hitching regardless of whether or not you are using Amd or nVidia hardware.
Measurable numbers mean nothing if we cannot see/perceive the difference. Agreed?
Looks like Brent has a few things to say about Radeon Pro.
http://hardforum.com/showthread.php?t=1732720&page=2
Posts 24 & 25.
You also might see a few familiar posters there.
From: Brent Justice [mailto:brent@hardocp.com]
Sent: Thursday, December 06, 2012 10:09 AM
To: 'Kyle Bennett'
Subject: RE: Radeon Pro
Program was more complicated than I thought, there isn't just one setting that will fix things, it's combination of settings to try various ways to possibly reduce the stuttering. The "default" way, for me, did not work. The vsync control dynamic did not work, simply forcing vsync on with and without tripple buffering, did not work, however, there was one setting that did work, and it is rather simple, and you may not even need Radeon Pro for it, and that is to 1.) cap your framerate artificially lower than your average framerate or 2.) use a double vsync option, which caps the vsync to 30 fps.
So what I found is that basically the only way to really smooth out the framerates, make it appear smoother, is to cap the framerate 10-20 fps below the average you are getting in a game. Let's say you are getting average 50-55 fps in far cry 3. If you cap the framerate at 40 fps, or anything below 40, it smooths out, less stuttering. But simply setting Vsync on won't help, cause that sets vsync to 60 fps, that's above the average. What you have to do is cap the framerate, or if the game has the option (in this case far cry 3 does with vsync 2 frames option) then it caps the fps to 30 and it smooth.
If your average fps is over 60 fps, then vsync on should work most of the time, because it will cap the fps to 60 hz/fps.
So it all comes down to what framerates are you are getting in-game, and then basically set your fps cap 10-20 fps lower, and the lower framerate, is smoother. Obviously this is going to retard performance overall, and you aren't going to get the full performance out of crossfire because you are capping your fps well below what it can actually achieve.
I found no way to maintain the full performance of crossfire and at the same time smooth the stuttering out, which SLI does natively.
However, I do need to spend more time with Radeon Pro and test it in more scenerios, such as eyefinity and other games. There's so many different ways to configure things that something may work in some game, but I don't know. But as far as Far Cry 3, I was able to keep the stuttering smoothed out by capping the game to 40fps or 30fps.
What I can do, is in our Far Cry 3 full evaluation article, in the CrossFire section where I will show performance and experience, I can include all of this information for Far Cry 3 and show screenshots in Radeon Pro how I accomplished the smoothness, or what was required. But like I said, I could also do this without Radeon Pro by using the "Vsync 2 frames" option in Far Cry 3 itself, it just caps the fps to a solid 30 fps, and that's really the gist of it. I did not find an overall Radeon pro setting so far that just works in smoothing out things.
----------------------
Regards,
Brent Justice
HardOCP.com Video Cards
I think we may have to take Radeon Pro and smoothing out stuttering in crossfire on a game by game basis, there isn't an overall sweeping option that fixes the issue, and gives us full performance. The only option i've seen so far, is to just cap the framerate 10-20 fps below the average you are getting in the game. Obviously the average framerate will vary depending on what in-game quality settings/AA settings you have enabled and what performance level you are happy playing at. Then just cap the fps 10-20 fps below that, and its smooth. It's hardly a fix though, more like a band aid. I'll include all the information in the Far Cry 3 article in how to smooth that game out with CrosFire, but it's going to mean keeping the game at 30 or 40 fps.
----------------------
Regards,
Brent Justice
HardOCP.com Video Cards
From the posts you referenced he only tried it in one game, FC3. A game that by others accounts suffers from stuttering not because of hardware. It doesn't seem very conclusive.
Hence why Keys asked for a more indepth look from AT....you are slow today arn't you?
Don't be ignorant. You don't know me.
I'm just stating that it's one game that's known to have stuttering problems anyway. So, what does it prove? Nothing. It was a waste of time for Brent to test with it, a waste of time for him to have posted it, a waste of time linking to it, and a waste of time reading it.
Don't be ignorant. You don't know me.
I'm just stating that it's one game that's known to have stuttering problems anyway. So, what does it prove? Nothing. It was a waste of time for Brent to test with it, a waste of time for him to have posted it, a waste of time linking to it, and a waste of time reading it.
And a waste of time reading your posts showing that all you want is for this to go away. It isn't. Okay? If you do not support an investigation by not only Anandtech, but as many tech review sites as possible, then you actually have no reason to post in this thread. After all, this thread is a request for just such a thing. You could start another thread about opposing it though. Fair is fair.
I'm not opposing investigation. That's a game specific problem, stuttering in FC3. It's not a relevant test for the software or comparing architectures. If you just want to study stuttering in FC3, you start a thread. Or, better yet join one already in progress.
Absolutely nothing eliminates the stuttering. Please fix UBI !!
So you're going to maintain that between TR and H, the only game they reported on for this issue is FC3?
Because this thread isn't just about far cry 3 although I see some attempted steerage in that direction. Well, you can stop now.
You all keep saying you don't oppose this, but take a stroll back through this thread. I'm talking a dumptruck full of charmin couldn't clean this up.
No. Your post I responded to was about FC3. Stop trying to make it seem like I'm saying something I'm not. The post did nothing to address the topic of the thread. It's a game specific issue. That thread on UBI forum was started by someone who owns an nVidia card.