What to Look For, Test Setup
We take another trip down the road of Frame Rating with the GeForce GTX 660 Ti and the Radeon HD 7950.
Because of the complexity and sheer amount of data we have gathered using our Frame Rating performance methodology, we are breaking it up into several articles that each feature different GPU comparisons. Here is the schedule:
- 3/27: Frame Rating Dissected: Full Details on Capture-based Graphics Performance Testing
- 3/27: Radeon HD 7970 GHz Edition vs GeForce GTX 680 (Single and Dual GPU)
- 3/30: AMD Radeon HD 7990 vs GeForce GTX 690 vs GeForce GTX Titan
- 4/2: Radeon HD 7950 vs GeForce GTX 660 Ti (Single and Dual GPU)
- 4/5: Radeon HD 7870 GHz Edition vs GeForce GTX 660 (Single and Dual GPU)
We are back again with another edition of our continued reveal of data from the capture-based Frame Rating GPU performance methods. In this third segment we are moving on down the product stack to the NVIDIA GeForce GTX 660 Ti and the AMD Radeon HD 7950 – both cards that fall into a similar price range.
I have gotten many questions about why we are using the cards in each comparison and the answer is pretty straight forward: pricing. In our first article we looked at the Radeon HD 7970 GHz Edition and the GeForce GTX 680 while in the second we compared the Radeon HD 7990 (HD 7970s in CrossFire), the GeForce GTX 690 and the GeForce GTX Titan. This time around we have the GeForce GTX 660 Ti ($289 on Newegg.com) and the Radeon HD 7950 ($299 on Newegg.com) but we did not include the GeForce GTX 670 because it sits much higher at $359 or so. I know some of you are going to be disappointed that it isn't in here, but I promise we'll see it again in a future piece!
If you are just joining this article series today, you have missed a lot! If nothing else you should read our initial full release article that details everything about the Frame Rating methodology and why we are making this change to begin with. In short, we are moving away from using FRAPS for average frame rates or even frame times and instead are using a secondary hardware capture system to record all the frames of our game play as they would be displayed to the gamer, then doing post-process analyzation on that recorded file to measure real world performance.
Because FRAPS measures frame times at a different point in the game pipeline (closer to the game engine) its results can vary dramatically from what is presented to the end user on their display. Frame Rating solves that problem by recording video through a dual-link DVI capture card that emulates a monitor to the testing system and by simply applying a unique overlay color on each produced frame from the game, we can gather a new kind of information that tells a very unique story.
The capture card that makes all of this work possible.
I don't want to spend too much time on this part of the story here as I already wrote a solid 16,000 words on the topic in our first article and I think you'll really find the results fascinating. So, please check out my first article on the topic if you have any questions before diving into these results today!
| Test System Setup | |
| CPU | Intel Core i7-3960X Sandy Bridge-E |
| Motherboard | ASUS P9X79 Deluxe |
| Memory | Corsair Dominator DDR3-1600 16GB |
| Hard Drive | OCZ Agility 4 256GB SSD |
| Sound Card | On-board |
| Graphics Card |
NVIDIA GeForce GTX 660 Ti 2GB AMD Radeon HD 7950 3GB |
| Graphics Drivers |
AMD: 13.2 beta 7 NVIDIA: 314.07 beta |
| Power Supply | Corsair AX1200i |
| Operating System | Windows 8 Pro x64 |
On to the results!
Absolutely god awe-full again
Absolutely god awe-full again for AMD….a couple of 7950’s in crossfire was meant to be about the best bang for buck high performance system you could build….oh how deluded or even worse misled we have been.
Deluded, misled, fanboyed
Deluded, misled, fanboyed out, raging radeon rightist, screaming psychotic frame rate fanboy, totally full of it, amd marketing borg bot, COMPLETELY FOOLISH IDIOT WHO CANNOT SEE THE GAME ON THEIR OWN ULTRA HIGH REZZ BRAGGADOCIO DISPLAYS WITH MEGA BUCK AMD CARDS….
I cannot even fathom the utter SHAME the CF amd fanboys must be feeling now.
A thousand times on every website we were told lies, by the reviewers, by the fanboys raping away in the comments section.
Now we know they were all deluded idiots, period.
AMD has claimed utter ignorance, and I certainly do not believe that since it’s worse than being just incompetent in writing drivers and making hardware, and extends the incompetence out ever further, into “not knowing what is going on at all” instead of covering it up because monetary concerns rule the day.
It’s one giant can of fail, and AMD has gulped the entire 55 gallon drum in one fail swill.
I wonder, will they pay the full price refund for one of the amd cards for every crossfire user, because indeed they certainly owe them. Hopefully a giant lawsuit will make the amd fanboys pocketbooks right, and I could see the penny pinching fanboy scrooges getting behind that 100%.
The next thing I want to know is how many of the LYING BUFFOON IDIOT articles from the hundred review sites that show amd fraps! in crossfire winning will be CHANGED, UPDATED, and in big red letters at the top:
NEW INFORMATION HAS SHOWN WE WERE WRONG. AMD FRAME RATES IN CROSSFIRE ARE HALF OF WHAT WE CLAIMED THEY WERE FOR MANY YEARS. WE HAVE MARKED “FAIL!” IN BIG RED LETTERS ACROSS EVERY SINGLE CHART AND IN EVERY REVIEW THEY WE HAVE EVER POSTED.
WE ARE SORRY OUR EYEBALLS DID NOT LIE TO US AS WE WATCHED THE BENCHMARKS STUTTER LIKE A RETARD ON AMD HARDWARE, BUT OUR FANBOY AMD BRAINS TOOK OVER AND WE SCREAMED VICTORY FOR AMD IN THE HIGHEST OF EMOTIONAL STATES AND RECOMMENDATIONS !
(ROFL – Oh man, they ALL need to resign)
That should only take them a few months to fix on all their websites since the amd underdog fanboyism is so freaking strong it could destroy all the rainforests of the world and induce global warming and nuclear winter concurrently.
O M G – thanks for the years and years of total lies
Dude…are you okay?
You have
Dude…are you okay?
You have issues.
poor bitter guy.. go f*ck
poor bitter guy.. go f*ck yourself and try getting a life. these guys at pcper are doing their job right unlike you causing misery to others making them feel bad..
kudos pcper for a well done review..
kudos to amd and nvidia
in the end. consumer wins the deal!! ^_^
poor bitter guy is spot
poor bitter guy is spot on.
they all deserve to feel bad for spreading their ignorance like a virus.
kudos to amd ? get outta here.
Assuming data collection
Assuming data collection method has validity which on the surface seems to make sense, then the best we can say here is AMD and Nvidia are neck and neck in single card performance and AMD has some real crossfire performance issues. However I play some games that generate a fair amount of lag with with single card performance and I add a card in crossfire and see a huge improvement. Secondly, in crossfire you see time in ms is all over the place, not as tight, and us guys know tighter is better right? Well how is your data going to as low as 0 ms on the crossfire setup. This is a clear indication that something in your formulation is wrong. For all we know this variance is actually improving gaming visual effects and reality.
If you are not satisfied…
If you are not satisfied… get two GeForce GTX 660 Ti and SLI it. AMD cards are not designed to handle two cards (CrossFireX).
Aha, starting to get into
Aha, starting to get into cards in the price range I’m looking for. I’ll be greedily going through this article and waiting for the next one with the GTX 660 and 7870 before buying my next card.
Unless something is shown to
Unless something is shown to be massively off the rails, the results will repeat the pattern.
That said, I own a 7870 and while I could argue all the clear merits, metrics, and reasoning vs. 660, the jist of the matter is it too, while slightly better, is at most (overclocked) sitting right at to slightly under where you want high quality 1080p performance now-a-days (and moving forward considering the ps4 spec). I would recommend you look closer at this article; buy a Tahiti LE if these are out of your budget and overclock it to 7950B speeds…or wait for the inevitable Hainan SKU if length/size is a factor (which should also drive down the price of 660ti to around ~250, in theory).
If you think that performance level is overpriced now, like I did, just wait. It’s going to be a very important market soon because of the analogous to new consoles (1080p 30/60hz) so the competition will be incredibly fierce, if not then stagnant for quite a while.
Thanks for yet another great
Thanks for yet another great article, I can only imagine the amount of work that has gone in to testing all these cards and games at different resolutions. I do hope AMD will fix their broken CrossFire system to balance out the competition, even though I’m not a fan of their cards myself.
That said, it would be nice to see how two Titans would perform in SLI. I swore to stick with a single card, but two of them are starting to tempt me as SLI appears to perform with smooth frame times.
Is AMD implementing the
Is AMD implementing the summer solution for the previous HD6000 series too?
Its gonna be a software fix
Its gonna be a software fix less they re-release their chipset which i doubt will happen. Nvidia apperently seen this issue few years ago and do it via hardware on their boards. Would expect AMD to address it properly with their next generation chip.
Wht’s up with the FRAPS FPS
Wht’s up with the FRAPS FPS for Far Cry 3 at 1440p in Crossfire. It’s showing 4x the performance of a single card – why do no other review sites see that kind of error?
The numbers you see on that
The numbers you see on that metric are based on re-adding the runt frames as well as the frames completely dropped by the game/GPU driver. Because all of those dropped frames are put back into the compilation the of average frame rate per second, the original or FRAPS result can sometimes be much higher than is really shown.
We saw the same result at 5760×1080 in many of our tests in this article as well as in the HD 7970 vs GTX 680 piece.
It’s because pcper and nvidia
It’s because pcper and nvidia have together invented a reason to throw out frame numbers using their subjective and bias opinion to then create an illusion metric they call ‘perceived fps’
pcper cannot be taken at face value due to their heavy nvidia involvement.
the bright side is that more credible hardware review websites will soon be giving their results using similar methods without the nvidia influence that pcper suffers from.
What about Toms Hardware,
What about Toms Hardware, TechReport and AnandTech? Are they all creating a conspiracy? Use your own head, see the data, and tell me it doesn’t matter.
Have been following much of
Have been following much of this new method closely. Take your own advice. Tom’s has already called into question that the smaller frames may have value and their worth or not is subjective and requires further study. pcper has hopped on board with nvidia and is towing their line on them having no value.
techreport too is saying the data from fcat is insufficient and more information from the api must be exposed for draw calls. you hear none of that here at pcper/nvidia (which is it, hard to tell any more)
anandtech has reserved any results at all until they can do a full and proper investigation with the fcat tools and will then release their findings.
pcper has attempted to get attention by cowtowing to nvidia in order to release data and riding the gravy train of amd bashing to garner a few page clicks from nvidia fanboys who swallow anything so long as it comes in nvidia positive or amd negative flavor.
much more investigation to be done, by reviewers unlike this obvious nvidia biased and sponsored one
While most are not giving
While most are not giving final verdicts, they all see it as a problem. How severe of a problem is what they are holding back on.
There are a few things that they aren’t even considering in all this either. Having evenly spaced frames, also means evenly spaced input. This gives a smoother feel as well.
How much latency really is added to the metering technology, if all it does is make one frame that is faster than the previous, wait a little. Once they are at the correct offsets, they should remain fairly close in line, with only occasional adjustments needed.
You also must have to consider that while the crossfire setup still gives a decent playing experience, is it giving as good of a playing experience? Reviews are meant to help us pick what is the better experience for the end user, not to just to find what is acceptable.
And if you’ve followed a lot of review sites articles, you probably have noticed many notes about different games giving stuttery results in Crossfire, and much fewer cases where SLI has been mentioned. They never made a big stink about it in their articles, because they are trying to give unbiased articles, and using quantifiable tests to gauge what is better. Now we finally have quantifiable evidence of crossfires problems, so it can given more attention.
I found I always had to run with v-sync with my 6950’s. I was ok with it, until I learned that the added latency was the cause of my nausea.
The trolling is strong in
The trolling is strong in this one.
I will agree with one thing
I will agree with one thing though. Pcper is definitely not holding back on their opinion, and would probably be more well received if they delivered the results without as much judgement.
While they may be right, a lot of people see it as an attack, and seem to be very defensive about it.
I realise the need to justify
I realise the need to justify your purchasing decision but accusing PC Per of bias is one helluva stretch.
I have used 6870s in Crossfire and noticed these problems and yet I don’t have the same issues with SLI.
The numbers don’t lie however much people dislike the results.
Bravo Ryan for calling it as you see it.
I was agreeing with Pcper.
I was agreeing with Pcper. The guy I originally responded to was the one who was trying to discredit it.
Sorry about responding to you
Sorry about responding to you bystander, it was intended for the guy you mentioned. 🙂
ROFL !!!!
“Smaller frames may
ROFL !!!!
“Smaller frames may have value” HAHAHHAHAHHAHAAAAAAAAAAAA
Please, you and the amd fanboys at Tom’s play with runts and ghosts, that’s valuable. A value that could not be understated.
Here let me show you what you game will look like:
————————————————-
_______________________________________ ___________
————————- ————————-
____________ ___________________________________
– ———————————————–
AWESOME ! RUNTS DO HAVE VALUE ! LET’S GIVE THEM A GOLDEN SHORTBUS AND FRONT OF THE STORE PARKING !
Maybe you didn’t notice a lot
Maybe you didn’t notice a lot of AMD sponsor ad’s on the site? As for cannot taken at face value, if a site is biased in their reviews, no one will trust them. Yes the tools were developed originally by Nvidia but PcPer is working on coding their own tools to get away from those.
Hmm iѕ anyоne elѕe
Hmm iѕ anyоne elѕe encountering ρrоblems with the imаges on this blоg
lοаding? І’m trying to find out if its a problem on my end or if it’s the blog.
Any suggеstіonѕ woulԁ be greаtly aρpreсiated.
my webρage :: Southold eye eхam (Rod)
Try not to be such a
Try not to be such a troll.
How about this theory? Because I have been using these tools, regardless of who developed them, for MUCH LONGER than Tech Report, Anandtech or Tom's Harware, I have more experience and am much more confident in the results they are showing me.
Accusing me of NVIDIA bias while AMD ads run continuously on our site is also pretty stupid.
Well done Ryan !
You have
Well done Ryan !
You have destroyed all AMD’s credibility as planed, without any real proof just with the help of Nvidia and I mean FCAT ( and who knows what else… )
” I have more experience and am much more confident in the results they are showing me” – You know just what Nvidia wants you to know… AND by the way You are a liar! First time when you mentioned about this “new frame metric” You told that it is developed by you and your team but on the first day of your benchmark you say the converter is made by Nvidia and I have to find from other sites that this whole benchmark is actually an Nvidia’s product???
Now you can go and count your green money, upss I mean tell your readers Nvidia’s propaganda, upss I mean the real objective stuff, you do care about your readers don’t you??? as it can be seen you DON’T!
From a site with AMD in his name you became Nvidia’s marketing guy (puppet ) but that is understandable because AMD does not give bribe to sycophants as Nvidia does ( How about this theory? ). Reading your articles it gives me the impression that they are written by Tom Petersen.
PS:go have fun with project shield, this is the future of gaming!- Nvidia marketing.
By the way you should rename this site to http://www.nvidia-pcper.com
“Accusing me of NVIDIA bias while AMD ads run continuously on our site is also pretty stupid.” – you are not doing this freely! you receive good money for that, now who is pretty stupid?
Yeah, well… except that AMD
Yeah, well… except that AMD has publically admitted that they are having issues with CF and will have a fix in place by this summer (in Beta form). Damn guys must be biased against themselves!
It’s no use Josh, these
It’s no use Josh, these zealots won’t listen to reason.
I have a 4870×2 and 2 6870s still running in my kids’ PCs but I am not blind enough to call Ryan a liar for exposing Crossfires deficiencies. Instead I greatly appreciate all the hard work that has gone into these tremendous articles.
It turns out that my eyes were not lying to me.
I really don’t understand how
I really don’t understand how incompetent you must be to accuse Ryan’s last few articles of being all Nvidia and meant to destroy AMD. He explains his testing methods, his setups, and creates repeatable, measurable data for us to analyze. If you don’t believe it’s true, don’t read it. I for one have been utterly displaced from my own enthusiasm for AMD’s crossfire. I just couldn’t understand why i had such a rough gameplay experience at 1440p when my frames were so high. What a mess.
BF3, Crysis 3, and Even Bioshock Infinite: anytime i’m in battles or high character count areas it becomes choppy and skippy, even though it says 100 fps :S
meh, useless trolls..
meh, useless trolls..
Was the tinfoil hat bundled
Was the tinfoil hat bundled with Radeon card or did you buy that separately?
I’m rooting for AMD. I like
I’m rooting for AMD. I like to have a 2 card solution but I just can’t do that with Xfire like I can with SLI. Here is to hoping they come out with a decent driver that really shows Xfire can work! Then I might get an 8000 series.
I’m pleased with the frame
I’m pleased with the frame rating results for AMD’s single GPU solutions. I’ll never do crossfire anyway but I’m hoping they fix their drivers for scaling… I can see people staying clear for AMD otherwise.
AMD is garbage. We are almost
AMD is garbage. We are almost to the point of refusing to sell AMD sh*t. It really has gotten that bad.
You must have read a
You must have read a different article since this one clearly shows that AMDs single GPU products are better than nVidia at this price point. Since the dawn of SLI/Crossfire it’s been a bad idea to go multi-gpu on mid-range (lol $300 mid) parts rather than go with a single higher end GPU.
I Like to know how long these
I Like to know how long these Crossfire problems exist. How much is the GCN Architecture to blame? How long have we been stupid in believing that Crossfire was just as good as SLI?
Take a HD6990 and a HD4870X2 for example and also add some old games (UT3, Doom 3, Half Life 2).
I have been running SLI for years in the old days. I never used Vsync because it was known to not work great for SLI (also was my experience) Since I have been using Radeon HD5850 OC in Crossfire I use Vsync for all singleplayer games and using framecap for multiplayer games. I always thought it had something to do with the Crossfire implementation and that it might have been optimized for Vsync primarly. I also did notice that Crossfire had some additional tearing. Now these days I know better…
Thanks for these great articles!
I know that FRAPS was showing
I know that FRAPS was showing problems in the 6000 and 5000 series. I also have heard SLI had problems back in the 200 series. I believe it was with 400 or 600 series that they started the frame metering improvements, since they said they started this a couple years ago.
This is a really interesting
This is a really interesting idea though I don't know how much time I'll be able to devote to older GPUs…
That would be an interesting
That would be an interesting test just to see if this issue was introduced with the GCN architecture or it’s an underlying problems of ATI/AMD multi GPU implementation.
Maybe without going to far back, a test with a pair of 69xx cards shouldn’t take too long 😉
The next step, after AMD put
The next step, after AMD put an option for evenly distributed frames in the drivers, is going to be test input lag compared to SLI.
If the results of this future test for both are closer to vsync + triple buffering, then AMD could claim that there never was a problem and the option (of smoothing) was already there for all users.
The BF3 discussion mentioned
The BF3 discussion mentioned GTX 680 SLI twice above and below the 4th plot. I think GTX 660 SLI was intended.
Thanks, fixed!
Thanks, fixed!
I know this is a ton of work,
I know this is a ton of work, but….
I would like to see how VLIW4 compares to GCN. Is this a new problem with AMD cards, or has this been happening for a long time?
Thanks Ryan for doing all this work, it is a very interesting read.
And keep up the good work on the podcasts!!
Even if it is a quick game
Even if it is a quick game review (BF3?) of 6970’s in crossfire.
Crossfire and SLI both are
Crossfire and SLI both are unbearable without using something like Afterburner to meter the frames. I’d like to see that tested.
Nope. Only amd’s crossfire is
Nope. Only amd’s crossfire is unbearable.
SLI is awesome and rocks the smoothness.
Frame rate target is ultra awesome on single card nVidia.
Only amd’s crossfire is an utter failure and a giant fps lie.
CF fails completely on half the games, too.
On the other half they have false frame rate double pumped when in reality they display single card rates with massive stutter and tearing.
amd cf is epic fail incarnate
Now all the amd fans can scream once again, “you can’t see anything beyond 30 fps, the human eye is incapable of it ! ”
Then they can move their human eye benchmark to 60fps
Then to 120 since the 120hz monitors have come out…
In any case, is easy to say on amd crossfire you will get 30 frames MAX with massive stutter, so it is true that the amd fanboy human eye cannot see beyond 30 fps.
It’s okay to be on disability with amd cards.
Guys!there are too many
Guys!there are too many variable involved in somethi ng this massive .I all brain an angle most forget.what is needed to generate graphic?don’t say GPU .next ?is control the vast majority of what is going on .Google sRGB 15 and read his view on color profile.this is just the tip of the iceburg .then you have data fragmentation everywhere always along the way and supposedly seemless.give me a break.nothing cause more trouble then the various fragememtation.at cache level at network level at GPU level.add to this the new .net .then we have bufferbloat everywhere which cause more fragmentation.I tell you this because the main cause of my issue have been at the is level I have been trying to get rid of all those fragmentation point but so far the task is so big its insane .I ain’t even started on the subject of color profile converting data for x y z to ?all along with the way wiggle room get by and at the end cause all the chaos pcper notice.but I bet if you ask ms they all say it is lower the human perception (85 ms)so it is a non issue.sadly ms is wrong .a fix?lol try getting the exact value of the black point of you monitor for fun.the white point?etc etc etc.there are a lot of value that shouldnt be on the eye ball guess or random yet a huge amount are.this is a good idea but without doing the same for all variable related to the os it is futile exercise because most of the issue come from the os because of all the compromise .imagine when 4k ITU standard is added to scrgb (?)lol it will be even worst.this is why tablet are popular like nexus 7.you pay 200 $and will look as good most computer at 1080p!ya there are issue .they are the same as they were when I was using xp 10 years ago .ms took 10 years to fix the universal clock.so better be patient on the issue you discover here cause most will be caused by the is (window)
I…I…what…?
I…I…what…?
Some people will never learn
Some people will never learn that online translators do not work in conversation. 😉
Has anyone really been far
Has anyone really been far even as decided to use even go want to do look more like?
You know for a site that’s
You know for a site that’s supposed to be hardware centric, you sure dropped the ball.
NOT A SINGLE WORD on the mini GTX 670.
HERE, I’ll do some of your homework FFS.
http://rog.asus.com/220932013/graphics-cards-2/picture-gallery-heres-the-asus-geforce-gtx-670-directcu-mini/
You mean words like
You mean words like this?
https://pcper.com/news/Graphics-Cards/ASUS-Finalizes-Mini-ITX-System-Friendly-GTX-670-DirectCU-Mini-Graphics-Card
latency and frame time
latency and frame time delivery as more and more sites are testing will only improve ALL products. Obviously there is a big problem with Crossfire at the moment, and I have no doubt it will eventually be fixed.
My Titan btw, has the lowest latency of ANY solution, so that makes me feel even better about my addiction.
We get the deal, AMD and
We get the deal, AMD and nVidia both fairly well matched single card perf. AMD crossfire has problems if you for some idiotic reason don’t use a frame limiter like radeon pro.
Blowing things out a little bit here mate. Time to start looking at the quality solutions that people have been using for a long time and that have been reported on for quite some time. Even Tom’s Hardware did a bit on radeon pro some months ago and how it eliminates micro stutter. Pretty sure the end result was a win for the unofficial 7990 against the gtx690 in terms of latency and smoothness.
By quality solutions I don’t mean ticking the “vsync” box in games then running the game at settings that only get you 40fps. I mean using radeon pro setting frame limit ~59 playing at settings that get you an average of 60+ and watching how smooth your cards look compared to the competition. Oh and how input lag free they remain.
The Toms Hardware article is
The Toms Hardware article is here: http://www.tomshardware.com/reviews/radeon-hd-7990-devil13-7970-x2,3329-11.html
You will notice that they used Dynamic v-sync within RadeonPro to fix it at different FPS limited points. It appears to be a v-sync/FPS limiter combo they are using.
It is worth using, but you shouldn’t be required to use a FPS limiter or v-sync to fix stuttering either, but it is a solution for now.
Wow what a complete blunder
Wow what a complete blunder for AMD!!! No wonder they are giving out amazing free games!! To sell their broken CF hardware!! What an eye opener!!
Looks like Im buying Nvidia this round.
I have to agree with
I have to agree with bystander here, seeing even just a slim article about CF/SLI performance with previous generation cards would have great value, as it would let a lot of people (myself included with my HD5770 CF setup) get some information on what an upgrade to a new CF setup will mean for us.
Having just ordered a Tahiti LE I would love to know if I will get the same amount of stuttering with two cards, just more FPS, or if the stuttering is worse, and in turn will make the upgrade of a lower perceived value than what FPS numbers imply.
Kind of proves Techreport
Kind of proves Techreport wrong on 660Ti vs 7950, according to whom SINGLE 660Ti was supposed to be much better than 7950.
Then again, flawed conclusions lead to improvements in methodology and finding REAL problems, so I can’t complain about that.
Is problem with CF hardware in nature? In last article you mentioned nVidia having built in hardware elements just to handle the issue, whereas AMD cards just output frames ASAP. So it means issue is unresolvable in drivers and AMD has to improve it hardware-wise in next generation? Looks like we have to disregard CF as viable option until it happens, then.
The TechReport articles
The TechReport articles “were” accurate when they were released, and sparked change from AMD, who went through their drivers to fix the problem.
They didn’t prove TechReport wrong. They prove AMD fixed things on single cards configurations.
Why do the graphs for “FRAPS
Why do the graphs for “FRAPS FPS” and “Observed FPS” match exactly except for Crossfire?!
There should be at least little differences between these graphs.
You don’t have FRAPS running during the capture, do you?!
No, FRAPS was not running at
No, FRAPS was not running at the same time as the overlay and capture testing.
So what would be the
So what would be the explanation for it?
The graphs match exactly.
If you measure the same scene twice, the results wont be exactly the same.
So you let the bench run, measure with FRAPS.
You let the bench run and measure with FCAT.
The results are EXACTLY the same except for crossfire.
There has to be something wrong.