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CrossFireX HD 6850s vs. HD 6970

post #1 of 56
Thread Starter 
Does anybody know if there are any comparisons in the recently released reviews pitting the HD6970 against CFX 6850s? Because you can pick up 2 6850s for around ~$180 now and the 6970 is $360 so I'm wondering how they fare against it.
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post #2 of 56
Hexus and Anand both did. I'm 99% sure I'm going with 6850 CF. Maybe a GTX 570... Kinda disappointed with the 69xx.
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post #3 of 56
Thread Starter 
Quote:
Originally Posted by pewpewlazer;11652866 
Hexus and Anand both did. I'm 99% sure I'm going with 6850 CF. Maybe a GTX 570... Kinda disappointed with the 69xx.
COD3.png

100% CrossFireX scaling... not to mention it thoroughly beats the pants off the HD6970 and GTX570 which are what the 6850s are priced together at. We have a definite winner.
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post #4 of 56
I never understand these threads with the limitations imposed by crossfire.

1. Crossfire doesn't work when games are windowed.
2. Crossfire isn't applicable to all games and is unstable in some games that are supported.

Honestly, unless you are buying the top range graphics card (2 x 5970s) it really is best just to buy the best single gpu and then later you can add another if you need more performance.
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post #5 of 56
Honestly, unless you are buying the top range graphics card (2 x 5970s) it really is best just to buy the best single gpu and then later you can add another if you need more performance.

samething ,lol
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post #6 of 56
Quote:
Originally Posted by tconroy135;11653312 
I never understand these threads with the limitations imposed by crossfire.

1. Crossfire doesn't work when games are windowed.
2. Crossfire isn't applicable to all games and is unstable in some games that are supported.

Honestly, unless you are buying the top range graphics card (2 x 5970s) it really is best just to buy the best single gpu and then later you can add another if you need more performance.

I never understand these replies talking about the limitations imposed by crossfire.

1. Who games when windowed?
2. True, but most games are supported (quite well at that).

Honestly, it makes no sense to recommend buying the fastest single GPU when it is both cheaper AND faster to buy a pair of mid range cards.
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post #7 of 56
Thread Starter 
Quote:
Originally Posted by tconroy135;11653312 
I never understand these threads with the limitations imposed by crossfire.

1. Crossfire doesn't work when games are windowed.
2. Crossfire isn't applicable to all games and is unstable in some games that are supported.

Honestly, unless you are buying the top range graphics card (2 x 5970s) it really is best just to buy the best single gpu and then later you can add another if you need more performance.

First of all, an HD5970 isn't an even a single GPU package, it has two GPU cores on it connected by an internal bridge on the PCB, so you basically invalidate your entire argument by using an HD5970 as an example. Also, these "unsupported" games you speak of are what exactly, Farmville? I highly doubt anything that NEEDS dual-GPU acceleration doesn't already have support for it.

Also, as you can currently see, I have a vanilla HD4870 from the release days of HD4800 back in July of 2008. Even a single HD6850 would give 1.4x of the performance I have now, and adding another one would get me up to ~2.8x on games such as BO that really support it. So I think it makes for me personally at this point. Not so much for you since you already have the fastest GPU in the world. tongue.gif
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post #8 of 56
Here is some multi-card scaling (err CF and SLI) on the HD 6950 6970 6870 & GTX 570:
http://www.tomshardware.com/reviews/radeon-hd-6970-radeon-hd-6950-cayman,2818-15.html
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post #9 of 56
Quote:
Originally Posted by pewpewlazer;11653542 
I never understand these replies talking about the limitations imposed by crossfire.

1. Who games when windowed?
2. True, but most games are supported (quite well at that).

Honestly, it makes no sense to recommend buying the fastest single GPU when it is both cheaper AND faster to buy a pair of mid range cards.

Couldn't have said it better applaud.gif
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post #10 of 56
Quote:
Originally Posted by pewpewlazer;11653542 
Honestly, it makes no sense to recommend buying the fastest single GPU when it is both cheaper AND faster to buy a pair of mid range cards.
The problem with that logic is that with the 68xx series, 2 cards in crossfire is max - so you'll never be able to improve from whatever you get with the 2 cards in cf.

According to that hexus screenshot, the 2x 6850's in crossfire are only 19fps better then a single 6970 - and that's as good as they will ever be - no 3x or 4x crossfire with them like you can do with a 69xx card.

Saying that, I still feel the 5850 is the best bang for $$$. Check out the hexus screenshot - 2x 5850's beats the 2x 6850's (and the gtx580 btw wink.gif).

The bonus with the 5850's is that you can run 4 of them, so you still have the ability to improve your gfx performance in future.
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