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Old July 27, 2012, 06:05 PM
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Unhappy EVGA gtx 670 Superclocked+ vs. Sapphire Radeon HD 7970

My goal is to upgrade my current radeon 6850 to something that can handle a 3 monitor setup, and i cant quite decide between these two cards, their both priced the same on newegg and both have very similar specs. The gtx 670 has 4gb of memory whereas the 7970 has 3gb, but the 7970 is running on a 384 bit interface whereas the 670 is only on 256.... The clocks are both ultra close, i need experts !
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Old July 27, 2012, 06:58 PM
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Either card will be capable. With just the one card running 3 monitors you'll run out of graphics chip before you run out of vRAM.
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Old July 27, 2012, 08:27 PM
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What resolution for 3 monitors? If its really high (like 5760 by xxxx ) then the 7970 or 680 would be a somewhat better choice. If its lower than a 670 should suffice
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Old July 28, 2012, 07:22 AM
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coin flip really.. 7970 should be better at higher resolutions but if your thinking of ever going dual card then 670 is less likely to give you any problems.

Though you will need the PSU to run 2 cards and a board that runs SLI or x-fire..

For 3 screens, either will run it.. for max settings your looking at 2 cards.. single card (and at the same price) I'd go for the 7970.. dual cards and the 670 should be good.
P.S. I assume your talking about 3 monitors all being used in game?
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Old July 28, 2012, 08:11 AM
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It really depends on your preference. If you decide to go 670, the Gigabyte WindForce is a winner imho. Less heat, noise and power consumption 4 1 card.

SLI for multiple monitors is best imho. I would check the reviews if you're going to base it on performance though I prefer Nvidia for the ease of running sli without major issues.

With AMD getting better with driver updates it may be easier now as well, though I've not owned AMD since my 5970 xfire.

Either way I'm sure you'll b pleased with the results.
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Old July 28, 2012, 08:41 AM
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Resolution, HZ and number of monitors are important.

- Crossfire with a hacked driver will do 120hz or 85Hz with the current beta driver. SLI is limited to 100hz. If you are running 120hz monitors and hoping for 120fps this might be important to you. If you are running 60hz monitors it isn't terribly relevant

- Crossfire requires you to drive everything off of 1 card so if you are running multiple monitors you may have to purchase your monitors to match the card or buy adapters. SLI lets you plug into the available ports across cards.

- Crossfire outperforms SLI in large scale resolutions 3 x 2560 x 1440. SLI outperforms Crossfire at lower resolutions. by a little bit.

The AMD GHZ edition slightly outperforms the 680 head to head for the moment


Obviously the 7970 outperforms the 670.

The important questions probably come down to which vendor you trust for driver support and which cards will suit your monitor choice best.
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Old July 28, 2012, 07:12 PM
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I looked at doing a SLI or crossfire setup but the main problem with that is that my current motherboard is locked with pcie slot 1 at 16x and number 2 at 4x.... And replacing my motherboard, getting 2 cards, and a higher psu is just way to much money. The monitors would all be 1920x1080, im not sure what 3 of those at that resolution are properly referred to as iv never done it before. Im leaning more towards the 7970, iv read good things about catalyst 12.7 fixing alot of problems and the 1000mhz cards are supposed to be really good. Any suggestions on which the best and most reliable 7970 would be? Also trying to keep this under $500.
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Old July 29, 2012, 05:24 PM
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a single 690 would be perfect for you ( as the x4 slot will impact performance a bit).. but with single chip and cards a 7970 will be the best for your resolution. GHZ edition if you can find one is slightly better.
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Old July 29, 2012, 10:25 PM
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Quote:
Originally Posted by Dzzope View Post
a single 690 would be perfect for you ( as the x4 slot will impact performance a bit).. but with single chip and cards a 7970 will be the best for your resolution. GHZ edition if you can find one is slightly better.
As much as i dream about getting a 690... Lets just say financially its just not realistic. Iv read really good things about the ghz edition 7970's like youve said, any recommendations for branding? Normally i go with asus or msi but the asus card has gotten aweful reveiws, and the msi card is a hundred bucks more expensive than all the others. Normally i dont go with powercolor but their 7970 actually looks OK, any thoughts?
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Old July 30, 2012, 12:27 AM
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Go for whichever one you can get your hands on... From what I understand of the board partners they may not all be doing the GHZ edition..
and even if they are they may not use all the upgraded components (such as the memory) that the "reference" GHZ edition uses.

So be very careful which one your picking.
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