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X-fire 5870 vs GTX 670

Last response: in Graphics & Displays
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June 18, 2012 10:48:21 PM

Hello,
I'm currently looking at upgrading my CF'd 5870's with a single GTX 670. The main reason for doing this is to reduce heat and noise. However, I'm a bit undecided at the moment. Should I make the jump? Is it worth it?

I mainly play BF3, Diablo 3, and Civ V. I'd also be doing fairly heavy 3D modelling (specifically in Rhino and Revit). I've heard that Kepler cards are sort of bunk when it comes to OpenGL. Is this true?

Any help or suggestions would be greatly appreciated.
Thanks.

Specs:
Intel Core i5-2500K
Cross Fire AMD Radeon HD 5760's
16GB RAM
256GB SSD

More about : fire 5870 gtx 670

a c 143 U Graphics card
June 18, 2012 11:31:21 PM

Lack of VRAM, heat, power consumption, noise, drivers support, tessellation and newer technology adds a bonus to GTX 670, but from a performance standpoint you may not feel a difference.

That's true, all the HD 7000 series have better GPGPU power than all GTX 600 series.
You shouldn't be even thinking about a Desktop graphics card since you're doing 3D rendering.
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June 19, 2012 12:50:10 AM

ilysaml said:
Lack of VRAM, heat, power consumption, noise, drivers support, tessellation and newer technology adds a bonus to GTX 670, but from a performance standpoint you may not feel a difference.

That's true, all the HD 7000 series have better GPGPU power than all GTX 600 series.
You shouldn't be even thinking about a Desktop graphics card since you're doing 3D rendering.


I actually already have a Quadro FX 5600 but gaming on that thing is pretty terrible. So, should I look into getting an HD 7970? I basically want a nice compromise between gaming performance and 3D modelling performance while remaining quieter and cooler than my current setup.
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June 19, 2012 1:15:37 AM

Have you considered the 7970? Will give you great gaming performance and from what Ive read, it does a fine job in computing as well. Might be what youre looking for.
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June 19, 2012 1:24:11 AM

GTX 670. CF HD 5870s are horrible, I tried running them some time ago and found the experience to oftentimes actually be worse than a single card.
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a b U Graphics card
June 19, 2012 1:46:35 AM

I would avoid the GTX6xx series. as they have their Compute performance (GPGPU) stripped out so for 2d/3d rendering they can perform quite poorly.

for gaming @1080P 1gb of VRAM is enough.
going to a single 7970 will see you achieve about the same performance as the CFX 5870's.

some games with poor CFX Scaling the 7970 will win, in others with good scaling and benchmarking the 5870's will be best.

I am in the same situation in having 2x 5870's and looking towards my next upgrade and having trouble justifing the expense for little reward.

and remember people the OP is also doing some heavy 3d modelling, not just games.
it is worth experimenting if your modeling programs take advantage of the 2nd card at all. Try running them with CFX disabled and see if there is any diff in modelling.
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a c 143 U Graphics card
June 19, 2012 2:37:42 AM

In terms of performance in games, GTX 670 performs the same as HD 7970 while costing $70 less, though the forum here are full of GTX 670 issues as a cause of drivers.
For the Direct Compute, HD 7970 is a way too much better but i'm not sure if your programs utilize OpenCL that much, unlike Photo Editing applications.


So now I see that HD 7970 is your best option to go with.
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June 20, 2012 1:14:39 AM

So I've read some reviews of the HD 7970 and they all seem to mention that it's a loud card once it passes %55-60 percent usage. Is that typical of these cards?
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a c 143 U Graphics card
June 20, 2012 2:34:15 AM

melloncollie said:
So I've read some reviews of the HD 7970 and they all seem to mention that it's a loud card once it passes %55-60 percent usage. Is that typical of these cards?

It will depend on the particular brand you're going to buy, for most reference designed cards the fans are much louder than non reference designed ones, any any card will pass 55% of fan speed will be audible. Even on 100% load my HD 6950 works @ 35% fan speed cause it never get past 75C.
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June 20, 2012 3:23:04 AM

I havent worked alot with NVIDIA cards but I have had several Radeons, currently I'm running crossfire 6970s, and when you put those fans past about 70% they get seriously ridiculously loud but I have never really had any need to put them past 60. Metro 2033 on Ultra puts about 90% on load on both which needs about 55% speed to keep temps around mid 70s.
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a c 191 U Graphics card
June 20, 2012 5:36:32 AM

ilysaml said:
It will depend on the particular brand you're going to buy, for most reference designed cards the fans are much louder than non reference designed ones, any any card will pass 55% of fan speed will be audible. Even on 100% load my HD 6950 works @ 35% fan speed cause it never get past 75C.


Lol, my 6950 with the reference cooler when it gets to 71C, I have the fan ramp up to 50%, and it sounds like a jet.

I would stay away from the reference cooler models of Radeons. Get like the XFX DD if they have it or something.
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June 21, 2012 2:36:01 AM

HugoStiglitz said:

for gaming @1080P 1gb of VRAM is enough.
going to a single 7970 will see you achieve about the same performance as the CFX 5870's.



For the most part and for the longest time, this was very much true but lately it does seem like there are more and more games coming out that need more than 1GB of VRAM even at 1920x1080. BF3 for one. Metro can and Skyrim will definitely if you do some modding with it. Not saying 2GB is a necessity at 1920x1080, but I think if youre buying a new card, a 2GB card wouldnt be a bad way to go just for insurance.
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July 1, 2012 12:01:39 AM

Best answer selected by melloncollie.
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