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7850 CF or GTX 680

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April 26, 2012 10:41:12 PM

Ok guys, question is simple: single GTX 680 Asus Directcu II or double 7850 or maybe you have better ideas? Gigabyte Windforce 2X. In my country 7850 CF is cheaper (about 20%) and as I know it is also a bit more powerful. What is the best in your opinion and what about a microstuttering in CF config? I usualy play BF 3, DCS A-10C (triple screen config), and new titles like Max Payne 3. I will use it with i7 2600 and 16GB of RAM. Thank you in advance for all your answers.

More about : 7850 gtx 680

April 26, 2012 10:47:44 PM

IMO get the 680... have heard too many bad things about HD x8xx series cards in crossfire
April 26, 2012 10:50:15 PM

BigMack70 said:
IMO get the 680... have heard too many bad things about HD x8xx series cards in crossfire


Maybe I get 7970 I can see you own one? How does it work? Any problems so far? What about performance?
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a c 143 U Graphics card
April 26, 2012 10:55:40 PM

BigMack70 said:
IMO get the 680... have heard too many bad things about HD x8xx series cards in crossfire

What did you hear?
a c 143 U Graphics card
April 26, 2012 10:58:24 PM

7ccccc7 said:
Maybe I get 7970 I can see you own one? How does it work? Any problems so far? What about performance?

A single powerful card is always recommend, in order not to experience drivers and scaling problems when CF/SLI. The MSI Lightening HD 7970 is factory OCed to 1070 MHZ, almost perform as powerful as GTX 680, techpowerup shows 2% difference between the cards and it runs very cool, 31c @ idle & 63c @ load.
a b U Graphics card
April 26, 2012 11:08:49 PM

microstutter is alot worse on lower end cards in SLI/CFX.

not to mention that when you run a game with bad SLI/CFX scaling you may as well have 1 lower end card.

its always a better idea to run 1 single high end card rather than 2 low end cards. less power draw, no scaling issues, and can always run a 2nd.

SLI/CFX is view as when you have got the top card (or very close to) and want even more.
April 26, 2012 11:12:54 PM

7970 is an amazing card if you are willing to overclock it. I don't recommend it for people unwilling to overclock, though - it is stupidly underclocked at its stock 925/1375 and even most factory OCs aren't that great. IMO it needs to be running at 1125/1575 or higher to be a good deal. Fortunately, 99% of cards will hit that clock on stock volts.

I've just seen too many forum complaints about 68xx and 78xx crossfire setups, and the performance gains over a 680 or 7970 are not worth the risk to me. Obviously others feel differently, or nobody would buy that setup. Just my opinion.

I have had no issues with my 7970... the only problem I had was when I tried to crossfire my XFX DD BE 7970 with my Lightning, and then put an unofficial overclock on them. They worked fine except when I pushed them beyond the XFX's stock clock limits. That wasn't really the card's fault, though... that was my fault for thinking I could do an unofficial overclock on a custom PCB +reference PCB setup.
April 26, 2012 11:21:56 PM

BigMack70 said:
7970 is an amazing card if you are willing to overclock it. I don't recommend it for people unwilling to overclock, though - it is stupidly underclocked at its stock 925/1375 and even most factory OCs aren't that great. IMO it needs to be running at 1125/1575 or higher to be a good deal. Fortunately, 99% of cards will hit that clock on stock volts.

I've just seen too many forum complaints about 68xx and 78xx crossfire setups, and the performance gains over a 680 or 7970 are not worth the risk to me. Obviously others feel differently, or nobody would buy that setup. Just my opinion.

I have had no issues with my 7970... the only problem I had was when I tried to crossfire my XFX DD BE 7970 with my Lightning, and then put an unofficial overclock on them. They worked fine except when I pushed them beyond the XFX's stock clock limits. That wasn't really the card's fault, though... that was my fault for thinking I could do an unofficial overclock on a custom PCB +reference PCB setup.



Ok. In My opinion also 1 GPU even if a bit slower is better than 2 more powerful. So let take the 2 most powerful single GPU's, 7970 and GTX 680. I don't mind to OC 7970 but There is also a price factor. There is a comparision of prices in my country:


1. GTX 680--> 670USD
2. 7970--> 560USD

Both pricings are for reference versions of cards. So which one would you chose?
a c 143 U Graphics card
April 26, 2012 11:29:13 PM

Tough situation, reference models are very noisy and run very hot, I had purchased the Sapphire HD 7970 ref design card for my friend and after 1 weak of usage it idles @ 51c.

Any hope prices will drop soon?
April 26, 2012 11:29:32 PM

Absolutely the 7970 with that big a price difference. No question. If you overclock it to 1125/1575 (stock voltages - don't increase those on a reference card), you'll get very similar performance to the 680 for way less money.
April 26, 2012 11:49:27 PM

ilysaml said:
Tough situation, reference models are very noisy and run very hot, I had purchased the Sapphire HD 7970 ref design card for my friend and after 1 weak of usage it idles @ 51c.

Any hope prices will drop soon?


There is a hope but for AMD. For GeForces there is no hope as they are new and it is hard to even get one.


I compared reference versions because Asus directcu II both cards are nearly in the same price. If I take directcu II it will be 100% GeForce but I wander maybe to buy a 7970 (200$ difference between 7970 reference version and GTX 680 Asus diretcu II) and save some money for my bicycle parts. Tough decision then. Another thing is time... For Directcu II I must wait about 1 month, for 7970 one day! Normaly I am very decided person but now I just don't know what to chose. Maybe I should make a draw? :D 
April 27, 2012 12:59:44 AM

If you spend $200 more to get a GTX 680, you are wasting your money.

Also, most reviews indicate that reference temps and noise are not a problem on the 7970... ilysaml's friend probably had a defective card.
a c 143 U Graphics card
April 27, 2012 1:14:59 AM

No it's not defective. PC starts up and the card temps are normal it idles @ 34c but when you start a hardcore gaming temps reach 81c when you finish gaming the card idles @ 51-48c never goes back to 30s unless you start up tweaking fan speed and it's noisy as hell.
That's normal for ref design cards as the fan spin @ 20% when you bump it up to 50% noise is clearly hearable, bump it up to 70% and you'll have something like vacuum machine.

Temps for HD 7970 can reach 100C and work extremely fine, but the performance will throttle over time unless you get an aftermarket cooler and the card will be defective quickly like what happened with my 9800 GX2 it produced red & green lies as a cause of heat.
April 27, 2012 1:22:06 AM

Sorry if I take reviewers' words over yours... no offense.
April 27, 2012 1:41:55 AM

Alright what about referent GTX 680 its a 100$ more or EVGA's OC signature + backplate for 130$ more?
a c 143 U Graphics card
April 27, 2012 1:48:00 AM

Listen, you gotta decide your own because the cards seem to be too pricey. HD 7970 ref is just 7% slower than GTX 680. When you pick up a card choose the quietest and the coolest also read some reviews on it before you make the move.

April 27, 2012 10:29:11 AM

Those reviews have the card idling closer to 40C, not 50C. Big difference. Also, load noise levels in those reviews are fine - around a 580. Hardly, as you claim, "noisy as hell". For example, from guru3d, "For the card in a fully stressed status (in-game) 42 DBA, now that is audible yet not annoying, very normal. It means you can hear airflow, but that's it.

So, is the 680 cooler and quieter? Yes. Is it a big enough deal to be the determining factor in a purchase as you seem to indicate? For most people, no.

It's only a determining factor if you are a silence freak about your case or a nut about power draw (which most people looking for $500 GPUs are not) - odds are you already have case fans noisier than this card.
a c 84 U Graphics card
April 27, 2012 10:40:22 AM

the hd 7970 will be the way to go because its just about 5-10% less in performance then the gtx 680 and way less in price also it would be better to go with the cheaper one with good allover performance which the hd 7970 has.in my opinion you should go with hd 7970 instead of gtx 680.
a c 143 U Graphics card
April 27, 2012 1:15:49 PM

BigMack70 said:
Those reviews have the card idling closer to 40C, not 50C. Big difference. Also, load noise levels in those reviews are fine - around a 580. Hardly, as you claim, "noisy as hell".

I said it starts fine in mid thirties, after the GPU gets too hot by load it's hard to go back to that thirties unless you speed up your fan that's have been the case when I tested that HD 7970. Also I said "noisy as hell" when you start up tweaking the fan speed, review my post well.

For you to believe or not, it's not a problem for me but I did like to share it with the OP to be aware of some basic settings.

Quote:
It's only a determining factor if you are a silence freak about your case or a nut about power draw (which most people looking for $500 GPUs are not) - odds are you already have case fans noisier than this card

No not really, system temps are always within range 40-45C at max you don't have to speed up the PWN fans to get a few degrees lower, but it's very different story in GPU fans specially in reference designed cards.
April 27, 2012 1:55:40 PM

No reviews that I have seen complain about noise or temperatures on the 7970.
April 27, 2012 7:32:53 PM

I have made a decision and you may be surprised because I choose... Radeon HD 7950 Asus Directcu II DC2 for 470$. 3GB of RAM, enough power for me, quiet, cold and when it won't be enough for me I will get another one. Also as I know this card is overclocking pretty awesome. I am also happy with the price. I hope it will be a good card. I appreciate your help guys, thanks!
a c 84 U Graphics card
April 28, 2012 6:52:19 AM

yeah good decision to go with hd 7970 asus direct cu ii its an good cooler and have a good overclocking ability be happy with it goodluck.:) 
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