Mmmmm.... Juicy juicy info.
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Mmmmm.... Juicy juicy info.
4gb antiles is really great, finally a true eyefinity card
The power draw thing seems interesting... the ability to set a thermal threshold directly rather than manipulating clocks/voltages. If they let us set it really high, we could see some interesting results... perhaps in OC'ability too
120 TMUs will be simply bonkers... imagine the texture rendering power of Antilles!
AMD sure needs to make some money to pay the debts so I doubt there is going to be any price war.
As for Nvidia, I just checked Newegg and out of 11 GTX 580 listed only cards from one partner are in stock, with such limited supply there want be any need for price war from Nvidia.
?? That's just an guideline for developers. Nvidia is saying exactly the same thing because too small triangles destroy the point of rasterization!
The tessellation shown in demos is absolutely meaningles for AAA game titles anyway. Tessellation can only be used with accaptable quality for meshes which can be defined completely procedurally (tires, etc.) or for absolutely organic looking objects (which is virtually non-existent in games).
And no one is going to see a difference between a tessellated cobblestone and a parallax-mapped one in a game scene.
There are many quality issues with tesselation in reality like uv-mapping.
So overall, tessellation is not and will not be important for games. There are much more useful things to do with geometry shaders.
Power containment is an excellent feature especially for dual-GPU cards. You don't have to factory lower clocks and voltage to stay below 300W. Just slap on two full blown Caymans and limit them to 300W the rest is taken care of automagically. You get max perf out of the card in all but borderline cases.
But it's useful in single GPU cards too of course, especially mobile.
but we wont be able to run gpu viruses at max! (furmark) :rofl: jkjk
this is alot of info to take in...
what will the heatsink design and temps look like, thats what im curious about
phew the waiting was killin me!! now were in the home stretch:up:
The power containment feature looks really nice.
Is it just me or is it odd that out of the HD 6970 specs that are not given a specific number in the slide, the only one that isn't explicitly stated as being greater than its HD 5870 equivalent is the SPU count?
Not that I'm suggesting the 6970 will have 1536 SPUs, I think 1920 is more likely (if it hasn't been confirmed), given things like previous rumors.
In any case, Cayman's shaping up to be one heck of a chip.
I think there's two reasons why they don't have finalized specs on that slide. The first is that the rumors about yield issues are true and AMD had to get enough chips back to see which shader count would give them enough chips to sell. The other is that they want to keep Nvidia on their toes and not give them a target. I believe the second is the more likely. But if we do get a card with 30 SIMDs, it's going to be a beast. Let's just hope that AMD doesn't bottleneck the card with not enough memory bandwidth. They haven't done that yet, so it's likely not going to be an issue.
Keep in mind this was presented in October. Look at the bottom.. October 2010, and an NDA of 11/22.
Most likely the specs were hidden so Nvidia wouldn't get the leaks. Flash forward to the 6990 slide posted a few pages back, which had a bottom date of 11/18, and we see its clear the Cayman XT has 1920 SP's... it's most likely the specs were only revealed on the 18th's conference meant for the 6900's
I hope this is faster than the gtx 580. I would rather pay 500 dollars for something 15% faster than a gtx 580, than 400-450 for something 5-10% percent slower.
But any word on quantities from anywhere?
TBD means 'To Be Disclosed' and not 'To Be Decided'. Of course it's already decided internally, they just didn't want nV to know about it.
But like zerazax said, now we know it's most likely 1920 SP, 30 SIMDs and 120 TMUs cause we have the Antilles specs.
From the latest info, I estimate
CAYMAN XT
Dual Front End (Graphics Engines) with double Tessellator Units
30 SIMD 4-way VLIW
1920 Shaders (64 per SIMD) (900MHz = 3,45 Tflops)
120 TMUs (4 Tex Units per SIMD)
2GB 256-bit Memory
32 ROPS
Performance ~30% avg more than HD5870 (DX-9/10)
Performance ~2x DX-11 Tessellation more than HD5870
Price ~$450
CAYMAN Pro
Dual Front End (Graphics Engines) with double Tessellator Units
28 SIMD 4-way VLIW
1792 Shaders (64 per SIMD) (775MHz = 2,77 Tflops)
112 TMUs (4 Tex Units per SIMD)
1GB 256-bit Memory
32 ROPS
Performance ~15% avg more than HD5870 (DX-9/10)
Performance ~1.8x DX-11 Tessellation more than HD5870
Price ~$350
I'd pay $450... That is with the GTX 580 is selling for and it does not even have 2GB of memory which ends up being a major sticking point for me. You have to realize this is the cost of inflation as well... I might wait for Asus to make an ares version of the 6990 and get that later. $450 also suggests to me that ATI believes it's that good of a card. I'm more concerned that the 6990 might stick to the 300watt pcie power rule. So it looks like I'll get 2 6970s.
How are you estimating the performance?
Cypress XT -> Cayman XT is apparently:
320 -> 480 SP's (50% increase)
80 TMU -> 120 TMU's (50% increase)
32 ROPs but they are doubled in power
2x tesselation across the board
1GB -> 2GB
850 MHz -> 900 MHz
Of course, if memory is actually a bottleneck now, they won't scale that well... but 30% seems far far too low given those other specs. Those are some seriously beefed up specs. 50% more TMUs, twice the ROP power, twice tesselation, twice the memory, 50% more SIMDs... that would require some serious bottlenecking to slow down even in DX9/10 games where teselation is a nonfactor.
Actually, looking at that... wow Cayman XT is one serious beast
lol..... are we ready???
Would anybody be so kind to give me a quick rundown on these cards? I wish I had the time to read the whole thread. Stuff like, rough performance, price, when released etc.
Also from what I've seen from the last couple of pages NDA is the 22nd Nov - so why is there no benchmarks? :\
Many thanks.
50% more performance seems rather low for all the improvement they did to cayman
antilles will have a field day with fermi
50% more performance seems rather low for all the improvement they did to cayman
antilles will have a field day with fermi
The NDA is not lifted yet ... the slides have been shown in October on the "Believe your Eyes Press conference " ( Bart Launch ), when the HD6900 launch was not pushed to early december .... it's just a site, who have leak those slides and at this time the launch of the HD6900 was normally the 22/11, it's why screen show "NDA 22/11" .
It seems the card is getting concrete with leaks regarding its specs. :yepp:
My expectation:
Cayman XT is around 40-45% faster on average over Cypress XT, priced @US$ 429-449. Cayman Pro is ~GTX 480 performance level or slightly faster, priced @US$ 349-359.
If it comes true, that would be quite an achievement considering they're still stuck on TSMC's 40 nm process. :up:
Looks like Cayman XT will be around GTX 580, and Cayman PRO will be around GTX 480, no?
I believe XT will be priced between $400 and 450, which should also make Nvidia drop prices. After that, just think about the über performance you'll be getting out of $400. Incredible.
I think at this point we can at least rejoice that 6970 will be very competitive vs gtx580 and the difference will be much smaller than gtx480/5870. That means prices should see their way down very soon after Christmas Holidays.
I predict a good time to buy this will be mid January when supply picks up and holiday shopping spree is over.
But who can wait that long huh?
if cayman xt is competitive with the 580 it does mean that cayman pro would most likely be competitive with the 480 and 570 ????
I don't get the translation, but how are they so sure it's a fake? Just cause they can reproduce it?
Awfully creative of them to have added Nov 18 2010 for sure though
Well, according to similar pics of Radeon HD 7980 and Radeon Uber-HD 10000 slides from here and corresponding info - its fake for sure!
http://www.3dcenter.org/dateien/abbi...-11Nov-23c.jpg
Yes instance orgasmmmm and i do have many $$$
^^
LOL! Priceless! :rofl:
Lol. Fakes are getting better. :rofl:
These ones are real though?
If so it still confirms ~2x tessellation perf, 4 equal shaders vs 4 simple + 1 complex, power regulation features, 2GB, simultaneous kernels, and EQAA.
Even if we knew the number of shaders (or assumed 1920 is correct), TMUs, and clocks making a performance estimate would be very difficult because of the different shader layout. Different applications will have different performance increases on such an arch compared to Cypress.
It could easily be a situation where DX9/10 games see a ~30-40% gain (over a 5870), DX11 see 50-60%, and vantage/furmark/etc see 20%.
Just a bit of fun with numbers. Caymen uses 90% of the die area for 4sps that Cypress uses for 5sps. Check the slides if you doubt. I used barts as a reference.
Cypress 334mm2 1600sp 256bit mem
Barts 255mm2 1120sp 256bit mem
Caymen ???? 1920sp 256bit mem
GF100/GF110 550mm2 512cuda 384bit mem
GF104/(GF114) 368mm2 384cuda 256bit mem
Die area estimates just for fun. Yep they have long WAGgy tails.
Caymen 334mm2/(1600/5)*(1920/4)*.9=450.9mm2
Caymen 334mm2/1600*1920=400.8mm2
Barts 334mm2/1600*1120=233.8mm2
Better Barts 334mm2/1600*1280=267.2mm2 What if HD6870 is a cut down Barts?
Barts reference accuracy 233.8mm2/255mm2=0.9168
Better Barts reference accuracy 267.2mm2/255mm2=1.0478
Barts is a significant refinement over the previous evergreen products. In the HD6870, Barts generates about 93% of the performance of the HD5870 Cypress while using less than 73% of the shaders. The question is how much of the gain in efficiency came from modified sps and how much came from a redesign of the uncore? It does seem clear that Cypress was sp heavy. That is Cypress has more sps than it can effectively use. Barts is the result of examining the evergreen products and finding ways to more effectively use the whole of the gpu.
Caymen XT should have an effective 50% performance advantage over a similarly clocked Cypress excluding performance enhancements to the uncore. AMD is showing in the various slides that the uncore changes in Caymen are even greater than those in Barts. Another question,,, is 4d=5d? We do not know, though AMD likely does. It does seem that 4d must be at least 90% as fast as the old 5d and likely more. The reason is that AMD only gains 10% die area with the change. If they did not see a potential gain then making the change would be valueless. I believe 40% better performance than the HD5870 would be a rather conservative estimate for the Caymen XT (HD6970). Depending on how well AMD has addressed the bottle necks of the evergreen (Cypress) gpu it could be that the HD6970 will be 60-70% faster than the HD5870. Pricing will be commensurate with actual performance. Expecting anything else would be silly, AMD is not a charity.
Should not be more than 3 weeks and we will know.
I would be very happy if Antilles is 30% faster than my HD 5970, probably not to easy to achieve on reference card because of the PCI-e spec. Anyway 30% plus the extra 2GB GDDR5 and at least 2x better tessellation would be nice upgrade.
So maybe Charlie was talking about Switzerland when he predicted the paper-launch. j/k
HD9000 will come with a Vegeta pic.
HD9000 Zarbon Edition
The HD9000 series will likely require 1.21 gigawatts to render Crysis 2 at 80 fps... not before taking us back into the 3DFX days :ROTF: ( bad Back to the Future reference )
The bandwidth on that faked screen does look a tad low, that is unless AMD have sacrificed memory bandwidth in favor of capacity. Still countless gigabytes rendering terabytes of data for >$9000 while inducing orgasm... sounds like a good buy ;)
here, I cut out the relevant parts for you guys
Who know, he come maybe see the mountain here ....
Naa real problem is we are surely allways the last country to get the hardware after been released, it look like they serve first UK, germany, and France... there's a real monopole from a shop who have buy all the other little shop here, addition to this if they want clear their 480 stock... 580 avaibility here is close to zero. ( with luck, next week )
It look like that for all models, all shops. ( look the date...8.12 ..)
http://img132.imageshack.us/img132/6929/sanstitrer0.png
well well well...
Most models in India are not in stock the ones that are have a outrageous price tag, it does not matter to me i am waiting for the 6900 series to com along where the hell are you guys :(
Just completed a search here in the Communist Republic of Norway and none of the 3 largest e-tailors have any samples in stock. Availability is more or less expected to be 1. January 2011. One shop, my favourite “on the corner” off course, has 3 samples in stock...
:welcome:
communist norway ??? LOL wat :O
the gtx580 r being held up at the TSA, they have to inspect its "vapor" chamber lol
In Romania, in my favourite shops, there is zero availability for the GTX 580, it kind of goes in line with what happens in other countries as well.
i think the caymen info/rumor thread needs less info about the 580 in it.
Aww manicdan thats a bad ass 'no fly' suit case there. Did you make a forum post on it yet? I'd like to see more pics of that! Looks friggin awesome.
ps- just saw the forum link lol nice one.
i love amd speculation threads!
no substantial information at all and once information is here the amount of posts get divided by 4
Imagine this though... had that Polish site not accidentally leaked those slides, we'd have no concrete info and the cards are only 2-3 weeks out
Actually, a few years ago the Swedish minister of finance said to a reporter when he thought the cameras where switched off that "Norway is the last communist country". This was after returning from Norway after discussing the merge of the Swedish telephone operator Telia (former owned by government, now 49,9% sold out) and the Norwegian counter part Telenor. Needless to say, the deal went the ways of Dodos and Telenor instead bought an ISP to enter the Swedish telecom market.
PEOPLE! What are you talking about!
We suppose to discuss Cayman cards not some BS about problems in Scandinavia or elsewhere!
:shakes:
Does anyone know ANYTHING solid about Cayman atm? :shrug:
From what's been leaked so far (pending if it's true and translate into real performance) the 6950 may compete well with the 580. But we have to wait and see. Other then that there is no real solid information other then what was leaked in the slides (not the separately leaked fake ones).
I think beside manufacturing problem of the card (the hard to find MOS from TI), other probable main reason for the "delay" is AMD trying to squeeze as much performance out of this chip in the driver. Clock i think is already finalized, but getting optimal output out of a "new" mArch from the driver is plenty difficult IMHO, and with this chip, it seems AMD graphic really want to deliver a pretty serious blow against the green camp. The VLIW compiler in the driver has to be reworked seriously to make sure the promised added efficiency going from 5 way-VLIW to 4-way VLIW really materialized in MOST cases.
I was thinking about the new dual core (Graphics engines) and the 4-way VLIW architecture in Cayman,
Starting with the front end, the ILP (Instruction Level Parallelism) must be the same or better than Barts (6800 series) and the new dual core design seems better in TLP (Thread Level Parallelism). Doubling the Graphics engines in order to have a second Tessellator unit will increase the transistor count and that means it will take more space. So the new front end will be bigger than Barts in size.
Because the new 4-way VLIW don’t have a specialized T (Transcendental) unit, its job is done by the 3 out of 4 shaders insight the SP in the new VEC-4. I believe that when they calculate T(sin, cos etc) the new 4-way VLIW will be slower that the previous 5-way VLIW by up to 10-20%. FP performance could be almost the same as VEC-5 (5 VLIW) per SP but at some instances it could be slower by up to 10%. The new VEC-4 saves them 10% space per SP so in theory they could put 10% more SPs and keep the same size.
One more problem with size will be the Texture units. Because Tex Units are part of the SIMD, and we will have more SIMDs than Cypress (20) they will increase the size of the die. I have no idea how big the Tex Units are but if Cayman have 30 SIMDs (120 TMUs) then they will increase the die size a lot.
Another problem will be the need to connect all those SIMDs between them and that’s the job for the Crossbar. If we have 30 SIMDs and 1920 shaders, Cayman has 20% more shaders than Cypress and it will need more connecting lines and bigger crossbar. That will increase the complexity of the chip and will increase the size.
One more side effect of this complexity is that it could effect the yields because more broken lines could happen in manufacturing and more copper could effect the thermal characteristics of the chip.
From my point of view 120 TMUs are too much and if AMD wants to keep the die size close to Cypress then they will need to cut the SIMD count to 24 SIMDs and 96 TMUs. If the new 4-way VLIW have the same performance with the old VEC-5 and they will increase the ILP and TLP in the front end, then with 24 SIMDs and a dual Core architecture for 2x Tessellation performance, they will have a small chip at 360-380mm2 with 20% more performance in DX-9-10 but 2x in DX-11 Tessellation.
60 page of nothingness seriously wth amd
Honestly AMD, give us something. You delayed the 22nd which was a blunder because if you didn't know about the gtx580 how dumb are you? It is exactly what we all thought it was going to be. 512 version of 480 + minor tweaks = 15% faster. I would be happy with a paper launch on the 22nd because at least you can keep prospective buyers holding out for a few more weeks. AMD + ATi have always been 2nd place when it comes to marketing. Frankly if there was another player in the industry I'm sure AMD/ATi would be third when it comes to promoting your products.
I understand that misleading the public with fake information during the 4870 launch fooled Nvidia and served the purpose of making them price their cards much above their performance - and they looked like a bunch of dumb people in the process. So it was a good move by AMD.
But with this launch - 580 has already been launched, its price set, and is a good card. If AMD's trying to pull another 4870 (meaning they have a killer performing, killer priced card) what would serve them better THIS TIME is to leak true information about their cards. The reason being: 580 is a good card and you want to prevent people from buying it at least until your own product hits the shelves. This fact plus the delayed launch date, plus with the facts that this is the biggest chip AMD produced to date and is a (although not completely) new architecture, all being possible contributors to a certain GPU's failure; makes me think these cards will not be as good as people think.
Well the 580 is hardly in stock in most countries, so I don't think AMD is too worried about sales right now
No, I don't see it as anything since like you, I have no real info regarding this card. I'm just saying that everyone's expectations are too high, but to me the circumstances indicate otherwise. I'd be very pleasantly surprised if 6950 competed with 580 and 6970 blew everything out of the water (I've sold my 5970 and I have been waiting for a fast single GPU card).
you're forgetting Nvidia still hasn't launched the gtx 570 yet and when it comes to volume the 6950 will sell more than the 6970. So Nvidia can still adjust their clocks on the 570 to make it more competitive than the 6950 and that is a risk for AMD. Untill all of Nvidias products are out, including the fabled 595, AMD does have a lot to lose by leaking benches and facts.
Why does it make you think that?Quote:
But with this launch - 580 has already been launched, its price set, and is a good card. If AMD's trying to pull another 4870 (meaning they have a killer performing, killer priced card) what would serve them better THIS TIME is to leak true information about their cards. The reason being: 580 is a good card and you want to prevent people from buying it at least until your own product hits the shelves. This fact plus the delayed launch date, plus with the facts that this is the biggest chip AMD produced to date and is a (although not completely) new architecture, all being possible contributors to a certain GPU's failure; makes me think these cards will not be as good as people think.
Today 10:35 AM
A 2+ week delay to make sure your product is as competitive as possible is a bad thing? If AMD launched a card that they could have gotten more out of would have an effect on sales. Folks like you would complain that "AMD shouldn't have released it; a short delay wouldn't have hurt."
Before you say that nobody would say that, we've all seen it plenty of times before. Lets not forget how long nVidia delayed. Now you're acting like they're right on top of the market. But obviously they were doing the right thing.
I see this as no different. AMD wants to make sure their offering is tip top before release. That is good business. Short selling your customers just to get it out the door is bad business.
+1
if its really good, then amds pr = fail...
if anything pr says COULD be a hint to nvidia and MIGHT hurt amd, then why does amd have pr at all? seriously amd, you guys might as well close the pr department all together... cause nvidia can ALWAYS lower prices, launch a tweaked card, launch a dual gpu card, tweak the driver...
your argument makes no sense, if nvidia could indeed easily do all those things, it would actually benefit AMD much more to keep them in the dark about upcoming products. Nvidia cant do those things nearly as easy as you claim but if indeed they could, how is it helpful to leak performance numbers of an unreleased product?
The more nvidia can react, the more AMD needs to keep them in the dark.
You know the lanch date and you have to wait if you want comparisons anyway, in two weeks they can still improve drivers and xfire support and what not, and its not because there is a tech comunity crying out for benchmarks that they need to comply.
In the end, the GTX580 is not really doing as much damage to AMDs sales as people seem to believe, and it is in short supply. I see no reason at all why AMD needs to telegraph their competitor what they will be releasing in 2 weeks, especially since there is still a 570 to come.
Well when you consider how how many on the red team were talking early on about how the green team was simply going to paper launch 580 to ruin the 59xx series launch it seems the same basic principle would still apply, to take the attention away from the competition.
Competing brands have to sling promotional pr at the public to keep relevant in the consumers mind and win their business.
AMD should be pitching some marketing pr with the new product since 580 is Nvidia's mid life kicker until the next node, it would be very odd for the green team to pull out anything else until then so the cards are on the table already.
Even if though the launch has been delayed I don't see any reason why they would not want to start promoting their new flagship product by priming the market.
Is it me or are some post missing? Lets all get along.:D
Heh.
AMD is not loosing anything by keeping this as tightly guarded as they have till now.
Even if its spanking chip with performance, there is little to gain from leaking the info month or so before launch.
Sure 580 is out, but its not available in any good quantity anywhere to worry AMD.
Second, they are in a position to hurt the Nvidia right before holiday season or / and right after it. Nvidia will have to go to troubles of lowering the price, compensate the AIBs, who will need to compensate the etailers and retailers. Its a lot of work. So why should they leak any info and give their competition time to prepare their strategy and action right now.
There was nothing bad to hide on last 2 major product launches by ATI/AMD. It was all good news, still they managed to keep everything silent right until the launch day to drop a nice surprise for customers and their competition.
How can this be fail?
we are all talking nonsense though, just making up numbers and hoping then complaining then making up new numbers, etc.
secrets are not always good, especially when there is another card out on the market already. it is the season for buying and people want to know what their options are.