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[CNET] AMD Bests Nvidia With Graphics Strategy

post #1 of 43
Thread Starter 
I searched and didn't see this posted here before. Now, this article is a fairly obvious one that mainly talks about AMD's new graphics strategy and how it's different. However, upon reading it, I noticed there were some very interesting tidbits about CrossFire and R700:

Quote:
AMD-ATI's upcoming R700 (rumored to be called the 4870 X2) two-chip graphics board will be the ultimate test of this strategy.

"It's a new proprietary inter-processor communication technology. If they put these two chips on one board and it does scale properly, then they have pulled off a coup," he said.

"When you gang up graphics chips (using the traditional Scalable Link Interface or CrossFire technologies) they roll off pretty fast. ("Roll off" implies that performance doesn't scale up well.) "So when you put two boards in, you don't get twice the performance but you (only) get one and a half. You put four boards in and you (only) get about 1.7, 1.8. What ATI is saying is that with two chips using (their) proprietary inter-bus, they will get 1.8 (the performance) with two chips. If that's true, you can expect to see four of them giving you something around 2.5."

Getting 2.5 times the performance from four boards would be a masterstroke for ATI.
Source

In my opinion, this is a very strong indication that the HD4870X2 will indeed NOT be the typical CrossFire-on-a-stick solution, but instead is a completely different technology. There's no mention of the specifics, but I'm shaking with excitement to see what is in store. There's something even more interesting...

Quote:
The previous ATI dual-chip solution was very different, Peddie said. "The HD 3870 X2 was not a proprietary bus but a CrossFire connection. The CrossFire connection and the SLI connection are at the very, very end of the pipeline. Not the most efficient place to do an inter-processor communication. That's one of the reasons ATI has abandoned it."
To me, this suggests that not only is the connection different on the HD4870X2, but that ATI has also changed the way CrossFire works. Instead of being at the end of the pipeline, CF is somewhere else. I'm very interested to find out what they did, and how it will pay off. Perhaps we can indeed expect HD4k CF scaling to only get better. If it is no longer at the end of the pipeline, to me, that suggests that it does not make use of Alternate Frame Rendering, which makes this a far more interesting solution.

If AMD does actually reach the level of scaling they're saying with this new interconnect, they are way beyond "back in the game" in my opinion.

Edited by darkcloud89 - 6/29/08 at 9:35am
post #2 of 43
+rep AWESOME find from an extremely reputable source

That is sick!! I heard rumors of the 4870x2 having no PLX xfire chip on it, and instead using this scalable core thing.

If this is done correctly, here comes a REVOLUTION (not an evolution) of the graphics industry. PROPS to AMD for having some foresight!!

Go red!

EDIT:
Although this does go against that article from ChipHell that shows the 4870 with a XFire chip on it.
Let's hope it's the new strategy and that it works!
Edited by GeNjii- - 6/29/08 at 9:20am
    
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post #3 of 43
Thread Starter 
Quote:
Originally Posted by GeNjii- View Post
That is sick!! I heard rumors of the 4870x2 having no PLX xfire chip on it, and instead using this scalable core thing.
The PLX chip is still required, there will have to be something to split the PCIe traffic

But still if this new interconnect works really well, it could be a very big deal

I'm not even getting an X2, but I'm still excited lol
post #4 of 43
Sounds pretty interesting, ATi have really got it going on.
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post #5 of 43
Anyone else remember the guy on INQ talking about this kind of thing BEFORE R600 SPECS WERE SOLID YET?!

You people the bash the INQ so much but when I see a prediction be accurate THAT far back... I'm forced to be more believing of them.

First hint
http://www.theinquirer.net/gb/inquir...d-is-a-monster

Then the prediction.
http://www.theinquirer.net/gb/inquir...are-set-to-die
Edited by Ihatethedukes - 6/29/08 at 9:52am
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post #6 of 43
Imagine if this worked, I'm sure this will be implemented into crossfire motherboards...
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post #7 of 43
Yea ati woot.
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post #8 of 43
Lets see how it will roll out, sounds good tho.
post #9 of 43
I will reserve my comment until I actually see this.
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post #10 of 43
I sure hope AMD does not hike the price up on us. This technology is going to STOMP Nvidia.
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