No. D9E is scheduled for March. R680 is scheduled for the last week of January.
AMD confirms R680 is two chips on one board
- Thread starter nicolasb
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No. D9E is scheduled for March. R680 is scheduled for the last week of January.
I'm not sure you'll find much in that vein if, as the rumors suggest, AMD's aiming for 15% faster. 15% won't mean the difference b/w playable and not. There might be the odd example like CoH DX9, but outliers like that tend to go both ways.
But I'm speaking from the skeptic's camp, as usual: less downside.
I'm not sure you'll find much in that vein if, as the rumors suggest, AMD's aiming for 15% faster. 15% won't mean the difference b/w playable and not. There might be the odd example like CoH DX9, but outliers like that tend to go both ways.
But I'm speaking from the skeptic's camp, as usual: less downside.
Actually ATI R600Crossfire wins against single G80Ultra in more other Titles.
http://www.firingsquad.com/hardware/amd_ati_radeon_hd_2900_xt_performance_preview/page10.asp
http://www.firingsquad.com/hardware/amd_ati_radeon_hd_2900_xt_performance_preview/page12.asp
http://www.firingsquad.com/hardware/amd_ati_radeon_hd_2900_xt_performance_preview/page14.asp
http://www.firingsquad.com/hardware/amd_ati_radeon_hd_2900_xt_performance_preview/page16.asp
http://www.firingsquad.com/hardware/amd_ati_radeon_hd_2900_xt_performance_preview/page18.asp
Edit: If R680 only aimed 15% improvement over G80Ultra probably due to power-consumption and heat issues ATI has to resolve by lowering clock frequency for R680. (Same example as GF7950GX2 500MHz for each GPU compare to single GF7900GTX 650MHz GPU)
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http://www.firingsquad.com/hardware/amd_ati_radeon_hd_2900_xt_performance_preview/page16.asp
I think Dual RV670 will do better on same PCB.
Edit: If Nvidia won't deliver Dual G92 about same time frame when ATI will: AMD could claim they overtaken the crown from Nvidia with their top dog GF8800Ultra. (I do think that R680 will beat G80Ultra)
That's one benchmark though, there are others where it doesn't do as good:
http://www.firingsquad.com/hardware/amd_ati_radeon_hd_2900_xt_performance_preview/page20.asp
And then you have the RAM problem with dual-gpu solutions. And of course compatibility problems.
I will expect R680 will be slightly faster vs. 2X Radeon 3850, because short distance travel between 2 GPU's on one PCB running around 650MHz for each GPU for R680.
Example: Radeon 3850 crossfire
http://www.anandtech.com/showdoc.aspx?i=3151&p=10
Example: Radeon 3850 crossfire
http://www.anandtech.com/showdoc.aspx?i=3151&p=10
Why do you think R680 will run on so low clocks?
Sample and clockrates were allready shown:
http://www.theinquirer.net/gb/inquirer/news/2007/11/17/amd-showcases-radeon-hd-3870-x2
Sample and clockrates were allready shown:
http://www.theinquirer.net/gb/inquirer/news/2007/11/17/amd-showcases-radeon-hd-3870-x2
Well the reasoning I though for heat issues like my Radeon 3870 @ 800MHz GPU gets up to ~86c with stock low RPM fan. I guess I was wrong about Dual RV670.
Why do you think R680 will run on so low clocks?
Sample and clockrates were allready shown:
http://www.theinquirer.net/gb/inquirer/news/2007/11/17/amd-showcases-radeon-hd-3870-x2
Core clock seems to be on the mark, but what's with that memory clock ?
That's way slower than HD3870...
GDDR3 ?Core clock seems to be on the mark, but what's with that memory clock ?
That's way slower than HD3870...
Yes, maybe cost-saving to hit $399-499 MSRP target...
So does it mean it won't be equal to two HD3870's in Crossfire, but more like overclocked, 512MB HD3850's in a "Crossfire-on-a-stick" configuration ?
With HD3870 approaching sub-200 dollar levels, two of them might end up costing as much or even less than this one, while providing additional performance (due to extra memory bandwidth, especially important in high resolutions).
Doesn't seem like anything that would stir my interest, based on these preliminary observations...
PCB nudies of R680: http://www.techpowerup.com/
Interesting they're using a PCI-e switch between the two RV670s. So much for synergy between AMD & ATi. HT would've been the obvious choice there. I guess it was cheaper to out-source it.
See how it bends away from the camera/white lines. If someone was really really bored they could do some maths to figure out the loss in the perceived length and work out its actual length. I've seen people count pins and analyze the res of Halo 3, so I don't doubt someone out there has it in them.
You would have to know the 'field of view' of the lense and then the distance the camera was placed from the board to be able to reverse calculate the precise length due to perspective barrelling.
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