If you could please explain in more detail how this 'better' 55nm process increases the amount of logic/mm2 by 20%? The semiconductor industry would be most interested.
AMD: R7xx Speculation
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Wrong math. 34.7% would be 897 million.
It's really just silly trying to get that accurate with a transistor number when the area is basically an estimate.
So, RV670 666Million; if RV770 is truly about 897Million - then thats put about ~231Million more transistors.
Now the question remain is to split those transistors into 3 category?
A: partially for texture units.
B. partially for stream processors.
C. now the question remain - will ATI increases ROP's count or not.
Edit: I asked this question before and nobody seems able to calculate approx how much transistor count eats-up for additional texture units and additional increase stream processors and now possibly ROP's.
Thanks,
Shtal
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Didn´t said that increased logic by 1% or 20%.
Just that there is a new node at tsmc.
You can get a chip between 900-1000M. 1B is a more round number, just that and they like to markting big numbers.
They haven't done this since... May 2004, when Ati introduced its X800-series, but ever increasing each ROPs capabilities.
So, one could argue, we're seeing a trend here, while on the same basis, one could say, it'd be about time to increase that number.
However, even at 2.560x1.600, 16 ROPs at 850 MHz (that's what i at least expect) would yield about 3320 Fps - enough even for Q3.
If ROPs would be doing everything single-cycle, not stalling etc.pp. - ideal circumstances, if you will.
Oh puhleeze, like you didn't know about the fairies and their inexhaustible supply of pixie dust.
Nope, and I bet many other enthusiasts out there will see it in the same light.
RV770/R700 needs to exchange blows with GT200/G100/D10U, otherwise we'll be in the exact same scenario as we are now--NVIDIA dominating the high end and thus drawing in "sheep customers" to performance and mainstream parts.
By exchange blows I mean winning at least 2 out of every 5 benchmarks (not counting synthetics).
A brand new high end architecture that only manages to compete with last year's competition is a failure, IMO. But then again, this chip is called RV770...
I'm hoping that R700 doesn't turn out to be some lousy "CrossFire on a Stick" card.
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Information leaking! Radeon HD 4800 VS. GeForce GTX 200!
http://r800.blogspot.com/2008/05/information-leaking-radeon-hd-4800-vs.html
http://r800.blogspot.com/2008/05/information-leaking-radeon-hd-4800-vs.html
They have a much less positive spin on it than tgdaily: $350 for the 4870 rather than $250, a paper launch for the 4870 (because of supply problems with the DDR5 memory) and the X2 version not out till the very end of Q3.
ATI now focuses on improving the RV770 drivers
http://r800.blogspot.com/2008/05/ati-now-focuses-on-improving-rv770.html
http://r800.blogspot.com/2008/05/ati-now-focuses-on-improving-rv770.html
Higher complexity => greater power drawOh, quite on the contrary. What else might lower clocks indicate?
Higher functional unit utilization => greater power draw
Power draw can then be alleviated with lower voltages and clocks, allowing for less complex cooling and possibly higher yield.
Of course, lower clocks can be used to lessen yield problems (more sellable product per wafer), and to lower power draw for its own sake, which could be popular when negotiating with larger OEMs who then can avoid noisy cooling in their boxes or added expense for heftier power supplies.
So actually, there are quite a few good reasons to not push the clocks to the bleeding edge.
Oh, quite on the contrary. What else might lower clocks indicate?
Tapeout problems? Bad yields?
His (the) source rarely is.
Looks like some of my recent theories weren´t that far-fetched at all.
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His (the) source rarely is.
In this case it came from another source of mine. But I do trust this one too, although anything can change *cough* smokescreen & mirrors *cough*.
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