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[OcUK]7950 Crossfire vs 680 SLI at 5760*1080 (Eyefinity/Surround)

post #1 of 68
Thread Starter 
Quote:
With the new drivers for AMD enabling their cards to establish a healthy lead over their nVidia counterparts at the extreme 5760*1080 resolution, I have decide to swap over and actually quantify the difference in performance to give people an indication.

The reasons for swapping was not due to VRAM or any other kind of conspiracy theory. Now was a good a time as any to sell up on the 680's and swap to what I believe will be faster triple screen performance and with the selling on of the old cards and the games, I can actually make money and potentially achieve quite a large performance increase. This is quite frankly ludicrous and nVidia do need to look at their pricing structures if they want to compete above 1920*1080.

There's a real lack of data around on Surround/Eyefinity performance and if you discount obvious bias even less! It's difficult to jump into triple screen gaming without knowing how your hardware will perform so even if this helps one person before they buy I'll be happy.

Testing machine:

i7 3770K @ 4.5 GHz
8GB of Geil 2133 MHz RAM
Gigabyte Z77X-UD3H with the latest BIOS
680 SLI @ 1270 MHz core and ~ 7 GHz effective memory speed
7950 Crossfire - speeds TBC

The nVidia tests were run on 306.23 drivers and the AMD tests will be on the 12.11 beta's.

I will be benching at a high overclock to typify what I will term, your average 7970 overclock. So an overclock in 7970 terms that the majority of people will settle on as not pushing the limits of the card to the extreme with noise/heat and a comfortable balance of performance. So with that caveated you will be able to interpret my results as within a percentage point or two of what a 7970 crossfire set up can achieve on the latest drivers. It's worth stating for clarity that I understand that 7970's may go further but I still feel this is helpful as a comparison of the card above my 7950's as well as a 7950 comparison itself.

Complicated waffle over... Games to be benched:

BF3 Operation Swordbreaker
Borderlands 2
Metro 2033
Skyrim
Dirt Showdown
Sleeping Dogs
MOH Warfighter
Guild Wars 2

Unfortunately my first 680 is departing tonight so I can't run any more than what I have already benched. The 680 results are already compiled and available in the OCUK benchmark thread.
http://forums.overclockers.co.uk/showthread.php?t=18455827

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post #2 of 68

Nvidia needs to step up its game on higher resolutions it seems.

 

I am suprised how 7950 CF can perform better than 680 SLI with a 3 screen setup

 

but again I don't know if the 680s are 2gb or 4gb versions.

 

IF they are 2gb versions than I wouldn't take this test as serious. People with 3monitors or people WHO play this game at just higher resolutions than 1080p, they will mostly opt for a 4gb version of the 680.

post #3 of 68
I doubt the 4 GB variant will increase any of the fps. 2 GB is fine for unmodded games. Only in Sleeping Dogs with Extreme AA the 4 GB is needed but the GTX 680 will still lose do to the low bandwidth and 256-bit bus.
The 7950 is only overclocked at 1150 MHz and that overclock is very average for that card, while the GTX 680 is max oc'ed now imagine if he have two of 7950 monsters that can do 1250+ MHz the gap will be even further.
Edited by HeadlessKnight - 11/3/12 at 4:12am
post #4 of 68
Quote:
Originally Posted by HeadlessKnight View Post

I doubt the 4 GB variant will increase any of the fps. 2 GB is fine for unmodded games. Only in Sleeping Dogs with Extreme AA the 4 GB is needed but the GTX 680 will still lose do to the low bandwidth and 256-bit bus. The 7950 is only overclocked at 1150 MHz and that overclock is very average for that card, while the GTX 680 is max oc'ed now imagine if he have two of 7950 monsters that can do 1250+ MHz the gap will be even further.

correct. many users still think the HD 7950 boost is a GTX 660 Ti competitor, let alone GTX 680. I just can't believe the amount of misinformation still going around. worse sites like hardocp still believe GTX 660 Ti SLI is a competitor to HD 7950 CF. rolleyes.gif Most sites have avoided commenting on Nvidia's pricing. hardwarecanucks though didn't hesitate to tell their opinion.- that nvidia cards need price correction. kudos to them for speaking on behalf of the consumers.
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post #5 of 68
Quote:
Originally Posted by iARDAs View Post

Nvidia needs to step up its game on higher resolutions it seems.

I am suprised how 7950 CF can perform better than 680 SLI with a 3 screen setup

but again I don't know if the 680s are 2gb or 4gb versions.

IF they are 2gb versions than I wouldn't take this test as serious. People with 3monitors or people WHO play this game at just higher resolutions than 1080p, they will mostly opt for a 4gb version of the 680.

That would be even more embarrassing to have $550 cards competing against sub $300 cards. There is a serious price check needing to happen here.
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post #6 of 68
I must be getting old, because my single 680 with 2GB handles 5760x1200 just fine. Just turn a setting here or there down and its great, I haven't felt the need to get a second card for any reason yet.

I do agree the Nvidia card prices are way too high, thats probably part of the reason the thought to SLI has not crossed my mind yet.
post #7 of 68
I've been telling you guys this for a while now and you treat me like an idiot who knows nothing. Now looks who's right!

Hope your happy with your gtx680's!

HAHAHAH LOLLOLOLOL biggrin.gif

AMD FTW with no regrets! Glad I didn't go with Nvidia.
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post #8 of 68
Quote:
Originally Posted by tsm106 View Post


That would be even more embarrassing to have $550 cards competing against sub $300 cards. There is a serious price check needing to happen here.

 

Actually you are right. I more of a had 670 4GB in mind.

post #9 of 68
The price at the current kelpler line up is awful. You have no reason to buy a gtx680 or even a gtx670 when you can buy a 7950 for so low. 300 to 500 is way to much. Now if you buy the 4 gb versions...
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post #10 of 68
Quote:
Originally Posted by iARDAs View Post


that being said the above tests HAD TO BE MADE with a 4gb 680. Just saying. 5760 * 1080 is a huge resolution for 2GB to handle in modern games.

I have a 1440p monitör and even with that resolution with 1 monitör the Vram usage might linger in the limits of 2GB, hence the reason I upgraded to a 4GB GPU.

Memory is not issue, bandwidth and memory bus is! 4GB version would not change a thing.
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