My GTX680 Review (48 games tested!)

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BFG10K

Lifer
Aug 14, 2000
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Have you looked into non-native resolution rendering?
You mean over-sampling? The xS modes already do that.

Oh, just noticed no Rage. If id ever releases the rumored texture pack, that and non-native rendering could be very interesting to see how it impacts image quality and performance (seeing how far you can push resolution).
I wait for game sales so I don't have it yet. Also from what I understand it can’t really be benchmarked because it constantly changes detail levels to maintain 60 FPS.

But once I get my hands on it I’ll definitely take a crack at getting something useful out of it.
 

3DVagabond

Lifer
Aug 10, 2009
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Thanks for the info. Interesting to see the large differences in gains. Obviously shows that a site could show virtually any improvement % they want to be cherry picking the games/settings.

Again, thanks for the effort to get us this information. :thumbsup:
 

Gikaseixas

Platinum Member
Jul 1, 2004
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Awesome list of games. I have quite a few old ones too and play every now and then.
Too bad you don't have a 7970 to compare, i bet it would be an interesting comparison.
 
Mar 11, 2004
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You mean over-sampling? The xS modes already do that.


I wait for game sales so I don't have it yet. Also from what I understand it can’t really be benchmarked because it constantly changes detail levels to maintain 60 FPS.

But once I get my hands on it I’ll definitely take a crack at getting something useful out of it.

I guess I'm not entirely sure as I'm no expert on AA. I know that nVidia has a feature in their drivers where you can force it to render at resolutions beyond the max of your monitor and then downscale it to your monitor's resolution. I can't recall what its labeled. Its not just for edge detect like I understand AA is. Not sure where I saw it but someone showed some screenshots and I thought it looked pretty good and IIRC alleviates some of the issues you can see with AA where you'll need special forms to take care of certain problems (I think it helped negate the need for Transparency AA for instance).

One reason why I mentioned Rage and the huge texture pack was that, with very high resolution rendering, the textures would quickly become a weak point, but there's obviously much more to it than that.

Yeah, that would probably defeat doing what I was mentioning unless you can disable the auto-optimization.
 
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boxleitnerb

Platinum Member
Nov 1, 2011
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^ It's called downsampling (the term may be wrong but that is what stuck). Very nice for games that don't support AA or SGSSAA. Especially for people who don't like FXAA.
 

blastingcap

Diamond Member
Sep 16, 2010
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Many games on that list have a measurable improvement in gameplay when running over 60 FPS. A twitchy game like UT3 or Quake 3 is a slideshow at 60 FPS average. The Stalker games also bog down in the heavier areas if you’re only pulling 60 FPS.

And remember, these are averages, so the minimums will be lower.

First, games differ on gameplay feel, or else I may just have lower standards when it comes to what I feel is a good framerate. A game like Crysis with motion blur may feel smoother at 30fps than a game like Quake 3 at 45fps, just to use one hypothetical comparison. I don't agree that Quake 3 is a "slideshow" at 60fps average, though it may feel jerkier than, say, Crysis at 60fps.

Second, you are right that minimum framerates matter, and I totally agree that average is meaningless if the game continually spikes down. But if it's an isolated spike here or there, it matters less; a time-series chart of fps vs. time can show how big the problem is.

Third, and this a bit off-topic for this thread, but I may have lower image quality standards than other people so a lower graphics settings is fine by me. Imho, there are diminishing marginal returns to image quality so that the jump from no MSAA to 2x MSAA is bigger than the jump from 2x MSAA to 4x MSAA, and that's bigger than the jump from 4x MSAA to 8x MSAA. Just to give one example.

Other examples are like how tessellation in some games did not really improve image quality... I recall a lot of discussion over Metro 2033 for instance and some side-by-side and mouseover comparisons, and I agree that tessellation as implemented in that game didn't add much to image quality despite hurting framerates significantly.

Also, many multiplayer games are so fast-paced that you will hardly be able to enjoy the slight bump in image quality because you are too busy trying to kill or avoid being killed or trying to outrace another car or whatever. So turning down eye candy slightly to improve framerates can be a great tradeoff.
 
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nyker96

Diamond Member
Apr 19, 2005
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thanks for the review, great work! Looks like 680s are indeed quite a bit faster than the 580s.
 

BFG10K

Lifer
Aug 14, 2000
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I guess I'm not entirely sure as I'm no expert on AA. I know that nVidia has a feature in their drivers where you can force it to render at resolutions beyond the max of your monitor and then downscale it to your monitor's resolution.
Yep, that’s OGSS. The xS and X modes do that. 32xS in this instance internally renders at 5120x3200 with 8xMSAA, then down-samples. I’ve been using those modes since 2004 on the 6800 Ultra.

nVidia’s new version just adds support for DX10/DX11 and likely resolves later in the pipeline to account for deferred rendering, but it’s probably too slow for modern games.

As an aside, I’m finding FXAA to be far superior to MLAA and very usable in games where no other AA works or 2xMSAA is too slow.
 

Jaydip

Diamond Member
Mar 29, 2010
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BFG i am using ASUS DCU II GTX 580 on a 1080P monitor.Would u recommend me to upgrade to 680?I have an i7 920 @ 3.2 Ghz and 6Gbs of ram.Thx.
 

toyota

Lifer
Apr 15, 2001
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BFG i am using ASUS DCU II GTX 580 on a 1080P monitor.Would u recommend me to upgrade to 680?I have an i7 920 @ 3.2 Ghz and 6Gbs of ram.Thx.
there are tons of reviews comparing the cards at 1920x1080 so why you cant decide from those if its worth it? personally if I had a gtx580 then I would wait until something faster came out before upgrading. 500 bucks is a lot of money for just a 30% increase.
 
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Jaydip

Diamond Member
Mar 29, 2010
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I have read the reviews but they seemed inconclusive to me.My card runs cooler as it is a customs design,it also has better oc headroom than the stock gtx 580.The temperature is a big factor for me but as the reviewers run the cards at open bench,its hard to conclude from their data.
 

BFG10K

Lifer
Aug 14, 2000
22,709
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BFG i am using ASUS DCU II GTX 580 on a 1080P monitor.Would u recommend me to upgrade to 680?I have an i7 920 @ 3.2 Ghz and 6Gbs of ram.Thx.
It’s hard to say. What AA levels do you use? How much faster is your card than a stock GTX580?

Look at the games in my list and see what performance gains I got with those you play.
 

BFG10K

Lifer
Aug 14, 2000
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What were your findings in DX11 games?
Look at AvP 3, Stalker CoP, Metro 2033 and Battlefield BC2 in the game list.

The only other DX11 game I have is Deus Ex 3 but that’s a solved problem given it runs over 90 FPS most of time at maximum detail levels.
 
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imaheadcase

Diamond Member
May 9, 2005
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You should do this again when next GTX 6xx card comes out to compare even more. Be interesting to see how all the games % change from one version to the next.

I assume next 6xx version is clocked faster? I think i heard late may/june
 

3DVagabond

Lifer
Aug 10, 2009
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You should do this again when next GTX 6xx card comes out to compare even more. Be interesting to see how all the games % change from one version to the next.

I assume next 6xx version is clocked faster? I think i heard late may/june

These are BFG's personal cards. We'll likely get another review the next time he upgrades. Not with the next nVidia release.
 

BoFox

Senior member
May 10, 2008
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Yep, that’s OGSS. The xS and X modes do that. 32xS in this instance internally renders at 5120x3200 with 8xMSAA, then down-samples. I’ve been using those modes since 2004 on the 6800 Ultra.

nVidia’s new version just adds support for DX10/DX11 and likely resolves later in the pipeline to account for deferred rendering, but it’s probably too slow for modern games.

As an aside, I’m finding FXAA to be far superior to MLAA and very usable in games where no other AA works or 2xMSAA is too slow.

For Quake 3, you could probably try 32x CSAA with 8x SGSSAA.. to improve things even further?!?

As to the 32xS modes for UT99, etc., why not just use the SGSSAA modes like you did for Quake 3? It seems that 8x SGSSAA is better than 32xS, since 32xS only does 2x2 OGSS, with 8x RGMSAA on top of that. That means you're only getting 32x effective AF (2x 16x AF) but with 8x sparse-grid SSAA, you're getting more than that, right? Plus at 2560x1600, the edges are already pretty much sharp enough with 8x (you could do 32x CSAA plus 8x SGSSAA, right?).. I wouldn't really care to make those edges any sharper on those older games making the wall corners seem like razor-blade edges that I'd slice myself when brushing my arm against any corner! Hehe..

This reminds me to remind you.. you gotta try out Stereo3D, my friend!!! I'd guess that 90% of those who enjoy playing older games would hugely appreciate playing them again in 3D, the biggest and most refreshing change since color vs black-n-white. About 60% of the games can be played without any serious issues.

What happened to doing reviews for ABT? Your unique review is definitely worthy of an "official" review article! :cool:
 
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Grooveriding

Diamond Member
Dec 25, 2008
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It is my understanding that SGSSAA is ideal when used in a matched sampling rate to your MSAA settings, as SGSSAA gets it data points from your MSAA results. ie. 4xMSAA with 4xSGSSSA is better IQ than 4xMSAA with 8xSGSSAA.

SGSSAA is also a different can of worms from TRSSAA which only affects alpha, whereas SGSSAA covers the entire image.

Correct me if I'm wrong and someone understands this better.

I've tried and failed to be able to run 8xMSAA and 8xSGSSAA in any game at my resolution without huge framerate variations, even in old source games. I don't think it is lack of VRAM either as I don't get colossal drops, just lack of GPU power to process it all. It looks incredible though.
 

BoFox

Senior member
May 10, 2008
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It is my understanding that SGSSAA is ideal when used in a matched sampling rate to your MSAA settings, as SGSSAA gets it data points from your MSAA results. ie. 4xMSAA with 4xSGSSSA is better IQ than 4xMSAA with 8xSGSSAA.

SGSSAA is also a different can of worms from TRSSAA which only affects alpha, whereas SGSSAA covers the entire image.

Correct me if I'm wrong and someone understands this better.

I've tried and failed to be able to run 8xMSAA and 8xSGSSAA in any game at my resolution without huge framerate variations, even in old source games. I don't think it is lack of VRAM either as I don't get colossal drops, just lack of GPU power to process it all. It looks incredible though.

I don't think you can use 4x MSAA with 8x SGSSAA.

What you are probably mistakenly referring to is that you can use 8x MSAA with 4x TRAA, but the TRAA won't be as good quality as if you use the matching 4x MSAA with 4x TRAA.
 

tornadog

Golden Member
Aug 6, 2003
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I ordered an Asus 680 today to replace my unlocked 6950. But 10 mins later I had a change of mind and cancelled the order. The desire to own new technology is tempting but the fact that I only play 1 pc game atm, Tropico 4 and the highest resolution on my TV is 1080P is counteracting this. I am sure many of you had gone through this. How do you finally justify your purchase and feel good about it?
 

f1sherman

Platinum Member
Apr 5, 2011
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TrSS IS full-screen in Doom 3,
and except for doing an alpha test is the same can of worms as SGSSAA.

Matter of fact thats how we got SGSSAA

I never saw CSAA mixing well with SGSSAA.

8xMSAA over 32xCSAA any day...