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Radeon HD 6790 vs. 6850

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April 23, 2011 2:13:51 AM

I've read the review and for the price all seem to agree the 6850 is a better card, however...

XFX (my preferred manufacturer of Radeon cards) has this card with 2 onboard fans.

Is cooling a problem on the 6850 (overclocked & non-overclocked)? What about noise? I'd be willing to take a bit of a hit in performance if it meant the cooling was better for longer card life (and potential better overclocking), but noise is an issue too.

Any information concerning these 2 cards (XFX versions), focusing on cooling and noise would be appreciated as always. Thanks to the community in advance.

More about : radeon 6790 6850

a b U Graphics card
April 23, 2011 3:10:45 AM

Well here's my problem with the card. Like the 5830, the 6790 is a flustercluck of basically defective parts reused to fill a niche. The 6790 is in essence a 6870 with defective parts deactivated. Although suppliers like XFX have put some charm on them, they still produce more heat and noise than the 6850. I have not tried the xfx 6790 personally so I can't vouch for noise levels from the card, but as with the 5830 I find it hard to recommend. It's not like a gtx460 that was designed for a specific market, but instead like AMD's 3cores a way to maximize return on investment.

Especially since the 6850 is the same price on newegg right now after MiR. I would go for the 6850 instead. I could go on listing the performance difference, but there is really no point. If you look at the newegg price the 6850 costs $175 without MiR and the 6790 costs $155. That's a price difference of 13% and the 6850 is about that 10-17% faster depending on what benchmarks you look at. So the pricing is spot on. But assuming you get the mail in rebate, you get an extra 10% performance for free.
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a c 376 U Graphics card
April 23, 2011 5:00:20 AM

Have you considered the HD5850 instead? It's not XFX but it is both cheaper and better than either of the cards you are considering.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
It also OCs very well(overclockersclub got theirs up to 1ghz) and is supposedly quite quiet.
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April 23, 2011 5:51:06 AM

Supermuncher85 said:
Well here's my problem with the card. Like the 5830, the 6790 is a flustercluck of basically defective parts reused to fill a niche. The 6790 is in essence a 6870 with defective parts deactivated. Although suppliers like XFX have put some charm on them, they still produce more heat and noise than the 6850. I have not tried the xfx 6790 personally so I can't vouch for noise levels from the card, but as with the 5830 I find it hard to recommend. It's not like a gtx460 that was designed for a specific market, but instead like AMD's 3cores a way to maximize return on investment.

Especially since the 6850 is the same price on newegg right now after MiR. I would go for the 6850 instead. I could go on listing the performance difference, but there is really no point. If you look at the newegg price the 6850 costs $175 without MiR and the 6790 costs $155. That's a price difference of 13% and the 6850 is about that 10-17% faster depending on what benchmarks you look at. So the pricing is spot on. But assuming you get the mail in rebate, you get an extra 10% performance for free.


My problem with Newegg is that I live in TN and we have a 10% sales tax. Even with discounts, coupon codes, etc., I almost always get better deals from tigerdirect. But the price is about the same on both sites.

I'm basically just looking for cooling/noise levels that would balance out the performance difference for the XFX versions. Like I said the double fan setup on the XFX version interests me because of heating issues, but I don't know if heating is even a problem with the card. I've blown cards in the past from heat issues. Thanks for the feedback though, one can never have too much information on any product. If one manufacturer is using substandard parts, it's a good bet XFX would be in the same pod...
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April 23, 2011 5:52:51 AM

jyjjy said:
Have you considered the HD5850 instead? It's not XFX but it is both cheaper and better than either of the cards you are considering.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
It also OCs very well(overclockersclub got theirs up to 1ghz) and is supposedly quite quiet.


From reviews here on toms, the 6850 is the best card in my price range, so no, I've not even considered the 5850. I'd be happy to look at specs comparing the 6850 to the 5850 if you can point me to some documentation. :) 
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a b U Graphics card
April 23, 2011 5:55:21 AM

like what has already been said, 6850 or 5850 is a much better choice imo. the 6790 is a fodder card a real piece of trash and bad price/perf, you would be better suited by just about anything else including a 5770 for the money.
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a c 376 U Graphics card
April 23, 2011 6:26:35 AM

Klorance said:
From reviews here on toms, the 6850 is the best card in my price range, so no, I've not even considered the 5850. I'd be happy to look at specs comparing the 6850 to the 5850 if you can point me to some documentation. :) 

Here is Techpowerups recent review of the HD6790;
http://www.techpowerup.com/reviews/AMD/HD_6790/
It also includes benchmarks for both the HD6850 and HD5850 for every game. I'm not sure what resolution you are using but at 1920x1200 they have the HD5850 as 31% faster than the HD6790 on average and 12% faster than the HD6850.
Here is the article I mentioned where they managed to OC the card up to 1ghz on the core;
http://www.overclockersclub.com/reviews/sapphire_hd5830...
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April 23, 2011 7:48:28 AM

Thanks all. Looks like I'll be going for one of the XFX versions of the 6850 (OC'e or non-OC'ed, I'll post full build specs later this weekend for final analysists wiser than I).

Thanks for the input. I'm assuming that the noise/cooling on the XFX 6850's aren't an issue. If they are, please post. :) 
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a c 175 U Graphics card
April 23, 2011 2:17:27 PM

I would like to point out that the 6790 is not a bad card. Yes, it uses more power then the 6850, but thats the biggest knock against it. The biggest problem with it is that its horribly overpriced. At $150ish its a joke. If the 5770 is $100 after rebate, then the 6790 (the replacement card for the 5770.) should $125 after rebate. For whatever reason the card hasn't fell to this price. By the same token the 5750 is a "horrible card" because its the same price(ish) as the 5770.

What I'm trying to say is that if your buying a new card, getting the 6790 at a good price isn't something to avoid. If you can find one for $130ish, then its better then anything else at that price. If you are looking at spending $150-$175, you shouldn't even consider it as the 6850 or 5850 will provide much better frame rates.
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February 7, 2012 1:45:45 PM

4745454b said:
I would like to point out that the 6790 is not a bad card. Yes, it uses more power then the 6850, but thats the biggest knock against it. The biggest problem with it is that its horribly overpriced. At $150ish its a joke. If the 5770 is $100 after rebate, then the 6790 (the replacement card for the 5770.) should $125 after rebate. For whatever reason the card hasn't fell to this price. By the same token the 5750 is a "horrible card" because its the same price(ish) as the 5770.

What I'm trying to say is that if your buying a new card, getting the 6790 at a good price isn't something to avoid. If you can find one for $130ish, then its better then anything else at that price. If you are looking at spending $150-$175, you shouldn't even consider it as the 6850 or 5850 will provide much better frame rates.


The 6790 is the replacement for the 5770 ? i thought it was the 6770

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a c 273 U Graphics card
February 7, 2012 2:11:24 PM

This topic has been closed by Mousemonkey
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