AMD Cayman info (or rumor)

[Calmatory]

AMD has been using vapor chamber for ages, but once Nvidia does the same it becomes the next thing since sliced bread.

[Solus Corvus]

http://forums.overclockers.co.uk/sho...1&postcount=38

"Good to know there will be plenty stock of the 6970. For those thinking will the 6970 be faster than a 580, I got news for you, how does 30-40% faster at stock sound."

These are the kinds of rumors that make it hard for people to moderate their expectations. It is just a post by some guy on a forum. Amazing if true but backed by zero evidence. Just another rumor star in a constellation spanning "it sucks" to "ridiculously fast".

[Chrono Detector]

If the 6970 is 30%-40% faster than the GTX 580, then the 6990 is an epic card.

Sounds kinda off though, but who knows.

[informal]

30% over 580 with 6970 is not impossible,but I'll believe it when I see it .

[Lightman]

Maybe it is misinterpreted by him and really should be 30%-40% faster than HD5870?

Anyway I doubt that 40% faster than Cypress is enough to charge for this card £400 in the UK



In case you're wondering where I got that price from .... http://forums.overclockers.co.uk/sho...5&postcount=69

[generics_user]

after thinking about it again i really expect 6970 to beat gtx 580 (those 30% might be possible in selected tests)


why? going from 5870 to 6970 we have the following improvements:

320 -> 480 shader clusters (50% improvement)
higher clockspeed
doubled front end with higher efficiency
2-3 times higher tesselation performance
doubled ROP performance
extra TMUs (5870 wasn't tmu bottlenecked)
2gb vs 1gb ram
6 (possibly 7) gbps ram vs. 4.8 gbps, possibly a reworked RAM controller with more cache = 25-50% more mem BW

everything in this list points to a performance improvement higher than 30% which puts 6970 on the same level as gtx 580 and that's a low estimate
additionally an improvement under 30% (= less performance than GTX580) would put 6950 at the same performance level as 6870 which makes no sense at all...)

(please tell me if i made a mistake in this list)

[Solus Corvus]

It seems possible, but we don't know in what context he is talking about. If it really is that fast I hope they spend some of the extra power on perfecting IQ.

Edit: actually he does specify the context: http://forums.overclockers.co.uk/sho...&postcount=133

Don't know system specs but I would assume it would be an i7/i5 CPU. Benchmarks were..

Heaven 2.1
Crysis warhead frost flythrough and airfield flythrough
3Dmark Vantage
Dirt 2
Justcause 2 concrete jungle bench

[Vipeax]

I read it as: It makes 40% more sound at stock.

[eric66]

It seems possible, but we don't know in what context he is talking about. If it really is that fast I hope they spend some of the extra power on perfecting IQ.

Edit: actually he does specify the context: http://forums.overclockers.co.uk/sho...&postcount=133

30 percent faster than opponent in heaven means that they were likely comparing to gtx 580 cause we all know that 6970 is nearly 2 times faster than 5870 in heaven anyway if this bench hold any truth that means total annihilation for nvidia

[informal]

after thinking about it again i really expect 6970 to beat gtx 580 (those 30% might be possible in selected tests)


why? going from 5870 to 6970 we have the following improvements:

320 -> 480 shader clusters (30% improvement)

480/320=1.5x or 50% (or 50% more than baseline 320 you are comparing to,which is Cypress)

[blindbox]

after thinking about it again i really expect 6970 to beat gtx 580 (those 30% might be possible in selected tests)


why? going from 5870 to 6970 we have the following improvements:

320 -> 480 shader clusters (30% improvement)
higher clockspeed
doubled front end with higher efficiency
2-3 times higher tesselation performance
doubled ROP performance
extra TMUs (5870 wasn't tmu bottlenecked)
2gb vs 1gb ram
6 (possibly 7) gbps ram vs. 4.8 gbps, possibly a reworked RAM controller with more cache = 25-50% more mem BW

everything in this list points to a performance improvement higher than 30% which puts 6970 on the same level as gtx 580 and that's a low estimate
additionally an improvement under 30% (= less performance than GTX580) would put 6950 at the same performance level as 6870 which makes no sense at all...)

(please tell me if i made a mistake in this list)

Have you put Barts' optimizations in the list?

Btw, 320 --> 480 is a 50% increase.
Though it's more like 224 --> 480 if we take Barts' optimizations into account.

[Calmatory]

I read it as: It makes 40% more sound at stock.

40 % more sound would be what, 2 dBA?

[mAJORD]

[QUOTE=Lightman;4654209]Maybe it is misinterpreted by him and really should be 30%-40% faster than HD5870?

most likely.. 30-40% faster than 580, I don't think so

[eric66]

...

[generics_user]

480/320=1.5x or 50% (or 50% more than baseline 320 you are comparing to,which is Cypress)

thanks, corrected

[blindbox]

Anyway, if we take 35% more than GTX580 into account and this link right here (1920x1200 resolution graphs). http://techpowerup.com/reviews/ASUS/...TX_580/27.html

135/75=1.8

We get 80% faster than Radeon HD 5870. Not entirely impossible seeing that this leap is pretty similar to Radeon HD 3870 -> 4870.

[Shadov]

If the 6970 is 30%-40% faster than the GTX 580, then the 6990 is an epic card.

Sounds kinda off though, but who knows.

This is what I call over-hyping!

How do you expect a gpu chip smaller then GTX580, that is even planned for dual GPU solution (6990) to be 30-40% faster?

Please I know this is an enthusiast forum, but being more realistic wouldnt hurt...

[generics_user]

Anyway, if we take 35% more than GTX580 into account and this link right here (1920x1200 resolution graphs). http://techpowerup.com/reviews/ASUS/...TX_580/27.html

135/75=1.8

We get 80% faster than Radeon HD 5870. Not entirely impossible seeing that this leap is pretty similar to Radeon HD 3870 -> 4870.

woooow comparing the leap from 3870 to 4870 with the 5870 to 5970 is wishful thinking

4870 didn't do a mere 50% increase over its predecssor, it went from 320 to 800 SPs (125% increase), doubled the mem BW and had other enhancements, i highly doubt that we're going to see a 3870-4870 leap again

6970 is going to beat 580 by a small margin (5-10%) everything else is overhyping

@Shadov: DualGPU card is going to be lower clocked and i expect it to be only 50% faster than a single 6970

[informal]

I can play crude math game too : if we take 6870 as a baseline,we have 1920 vs 1120 SPs.If we assume that the new 4way arrangement brings 90% of 5way performance in games and if we figure in the clock difference(that is in 6870 favor,900Mhz vs likely 800-850Mhz for 6970),plus a better mem BW(10% perf. increase impact) for 6970 we get : 1920/1120*0.9*850/900*1.1=1.6x faster than 6870. According to the image above, 70x1.6=112pts or 12% above 580. That's reasonable,12% I can buy. But 30-40% above 580 is highly unlikely IMO.

[Heinz68]

http://forums.overclockers.co.uk/sho...1&postcount=38

"Good to know there will be plenty stock of the 6970. For those thinking will the 6970 be faster than a 580, I got news for you, how does 30-40% faster at stock sound."

bs ? seriously what kinda drug this guy is using ...

Sometime people do post bs, you should know better. I wonder what kind of drugs you were using when you made few post about HD 6970, like the following post.

seems to me that amd screwed up 6970 so its 580/570 all the way this christmas

[Dimitriman]

rational thinking wont allow me to believe it kis 30% faster than 580 sorry. the only case I can see that happening is in Vantage.
now if they mean faster than 480 then I could believe that.

[thebanik]

rational thinking wont allow me to believe it kis 30% faster than 580 sorry. the only case I can see that happening is in Vantage.
now if they mean faster than 480 then I could believe that.

+1

I would so like to believe that its that fast, but AMD is running a business, if it was that faster then it would be that much costly as well or else it will be just on par or 10% better maybe

[eric66]

Sometime people do post bs, you should know better. I wonder what kind of drugs you were using when you made few post about HD 6970, like the following post.

mine sounds much more realistic you must admit it seriously one must be fanatic to believe 30-40 percent difference

[Oztopher]

Thing is, the rumor of the 30-40% originated from a guy who is (currently) very pro nvidia.

[madcho]

it's a bit too huge in my mind, and i'm pro AMD.