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[PCPer] Frame Rating Comparison - HD 7950 CrossFire vs GTX 660 Ti SLI (full review) - Page 22  

post #211 of 542
In the his articles he graphs the amd gpus with runt frames removed and makes certain claims thereof.
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post #212 of 542
Quote:
Originally Posted by Forceman View Post

A lot of people don't play with Vsync on, and pretty much all performance reviews are done with Vsync off, so showing how stutter/runt frames affects a Vsync off condition seems pretty relevant. If reviews compared cards by comparing what settings were playable at 60 FPS with Vsync on, then you'd have a better point.

Yeah, you're right about raw performance. But in this case, VSync not only improves playability, but it gets rid of stuttering.

This case clearly draws the line of when we're bragging, and when we're being realistic.
   
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post #213 of 542

It looks like both cards have issues, More so the 7950 though

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post #214 of 542
Quote:
Originally Posted by Swolern View Post

A runt frame was considered 25% or less of the previous frame. Sounds pretty cut and dry. Hope AMD gets it fixed soon.

But who draws the line which is a runt frame and which isn't, why is it 25% and not 16% or 27% ?

The reviewer uses his own subjective reasoning and passes it on as fact.
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post #215 of 542
Quote:
Originally Posted by Artikbot View Post

Yeah, you're right about raw performance. But in this case, VSync not only improves playability, but it gets rid of stuttering.

True, but if you are going to say that CrossFire 7970s get 80 FPS while the GTX 680 SLI only gets 65 FPS, and so the CrossFire solution is "better", you need to be able to show that the higher FPS comes with a price. I think that's the justification for these tools.

The other method would be to use Vsync and then say, the CFX cards can do 4xAA at 60 FPS, while the SLI cards can only do 2xAA at 60 FPS. Same result, but different methodology. Personally, I'd like the second way, because I can't stand tearing.
Quote:
Originally Posted by Kasp1js View Post

But who draws the line which is a runt frame and which isn't, why is it 25% and not 16% or 27% ?.

Gotta pick something. The tools let you choose what you want to consider a runt frame so you are free to pick whatever, I believe I read.

If you look at the actual data file, there are tons and tons of Crossfire frames that are either 6 or 7 scan lines high - I think we would all agree that those frames meet the "runt" definition.
Edited by Forceman - 4/3/13 at 1:51am
post #216 of 542
while it would be better if you could say which card produces better images at X minimum framerate, it's hard to be objective about image quality, and your results would marginalize everyone that doesn't play at 1080p or 1440p @60hz.
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post #217 of 542
Quote:
Originally Posted by rdr09 View Post

i can honestly say that both my cards (7950/7970) never suffer any stuttering as single setup or when paired. the only time i saw stuttering, so annoying, that hurt my eyes was after watching this video . . .

http://www.youtube.com/watch?v=iukY2L8PpSM&feature=related

690s in sli. if any of my cards did that they are off to rma. seriously cause that is disgusting.

edit: i only play bf3, c3, c2, and ps2 with crossfire. ps2 was not as smooth as single card setup.

*Sigh*

The diablo 3 problem has nothing to do with GPU's, SLI or Xfire at all.. Its the game that is constantly loading things from the harddisk. A lot of people solved this problem by making a ramdisk or by running the game files from a flash drive.
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post #218 of 542
double post frown.gif
Edited by Sonolegolas - 4/3/13 at 2:35am
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post #219 of 542
Quote:
Originally Posted by Sonolegolas View Post

*Sigh*

The diablo 3 problem has nothing to do with GPU's, SLI or Xfire at all.. Its the game that is constantly loading things from the harddisk. A lot of people solved this problem by making a ramdisk or by running the game files from a flash drive.

Read some of the later posts, that vid was uploaded 6 months before Nvidia announced the 690 wink.gif
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post #220 of 542
Quote:
Originally Posted by Kane2207 View Post

Read some of the later posts, that vid was uploaded 6 months before Nvidia announced the 690 wink.gif

Yea but he was corrected on that already =P
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