AMD Radeon 7000 Series

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AMD Radeon 7000 Series

Postby Silver » Sat Nov 19, 2011 1:33 pm

Swecklockers just mentioned a few days ago (2011-11-14) that AMD Southern Islands
code named: Tahiti video cards will become avalible the 2nd week of January 2012 (sometime in between January 2–8). :mrgreen:

The cards mentioned are the HD 7950 (Tahiti Pro) & HD 7970 (Tahiti XT).
HD 7990 (New Zealand) is also mentioned but with no release date.
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Re: AMD Radeon 7000 Series

Postby Sauron_Daz » Sun Nov 20, 2011 12:33 am

Those should do well if performance rumors come true.
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Re: AMD Radeon 7000 Series

Postby Hammer_Time » Sun Nov 20, 2011 2:19 am

I like the code name "Tahiti" ! 8) :D

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Okay, we know it will be on 28nm process which should make for reasonable power consumption and high overclocks, but some specs on these new puppies would be nice...

GTX 6xx series coming out Q1 2012 as well is rumoured to have double the number of CUDA cores that current GTX 5xxx series has, and of course will also be on 28nm... should be an exciting winter!! 8)

Edit, did some googling and found this info ( not confirmed/rumor ) on Tahiti :

http://wccftech.com/amds-generation-rad ... e-hd-6990/

AMD’s Next Generation Radeon HD 7970 GPU’s Performance Comparable to HD 6990
HARDWARE Posted 2 weeks ago by Hassan Mujtaba

Recent details on AMD’s Next Generation HD 7000 Series suggest that the performance of the fastest single core GPU aka HD 7970 would be comparable to the current flagship dual core HD 6990 GPU. AMD’s upcoming High End HD 7000 Series cards would use the GNC (Graphics Next Core) Architecture which would feature XDR2 Memory, The low end models would continue to use the VLIW4 and GDDR5 CPU/Memory Architecture.

Codenames of various HD 7000 Series Graphic Cores were leaked in Catalyst 11.7 (Details here) while complete specs of each core have been thoroughly detailed here. The Tahiti XT based HD 7970 is said to perform equivalent to the Dual chip based HD 6990 which features two HD 6970 Cayman XT Cores.

The HD 7970/7950 are expected to use the XDR2 memory which would provide double the memory bandwidth when compared to GDDR5, 6Gbit/s (GDDR5) Vs 12.8Gbit/s (XDR2) while reducing the total power consumption to nearly 30%, This means that the card would not only perform better but also feature better Power/Thermal efficiency then previous HD 6000 Series cores.

However, The GNC Architecture and use of XDR2 is only limited to the High End Chips, Details on Key features of AMD’s HD 7000 Series Architecture below:

* L1 and L2 read / write caching
* Out of order resource allocation
* ECC data protection on SRAMs and global memory
* Parallel primitive

A few highlights from the talk: Multiple primitive pipelines for setup, etc.
Real caching in L1, L2, separate color / z caches for graphics and atomics
Concurrent tasks
Out of order resource allocation
ECC on srams and drams

Release date however is expected sometime between Q2/Q3 2012 since TSMC’s 28nm yield and manufacturing issues for both Nvidia Kepler and AMD 7000 Series. Lower end chips and mobile variants are expected to release earlier in Q4 2011/Q1 2012.
Details:


Rumoured specs:

http://wccftech.com/amds-generation-28n ... cs-leaked/

http://www.geeks3d.com/20110907/amd-rad ... core-next/

That HD 7950 card spec looks killer!! Hope they don't overprice it...

Ah, so the "lower end chips and mobile variants" will launch first in Q1 2012, then the high end cards the following quarter ( Q2 2012 )... makes sense...they have to tweak the new 28nm lithography before mass producing the "high end" cards, I bet nVidia will do the same thing and follow similar launch schedule...most likely...
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Re: AMD Radeon 7000 Series

Postby DIREWOLF75 » Sun Nov 20, 2011 4:24 am

Recent details on AMD’s Next Generation HD 7000 Series suggest that the performance of the fastest single core GPU aka HD 7970 would be comparable to the current flagship dual core HD 6990 GPU.

If they can translate this down to the whole lineup of gfx cards, then it will be GOOD.
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Re: AMD Radeon 7000 Series

Postby Sauron_Daz » Sun Nov 20, 2011 4:28 am

That HD 7950 card spec looks killer!! Hope they don't overprice it...


If it is a 'killer' of those proportions I do expect it to carry a corresponding pricetag.. :(
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Re: AMD Radeon 7000 Series

Postby Cow187 » Sun Nov 20, 2011 10:35 am

http://www.techpowerup.com/155365/Sever ... rands.html

According to this HD 7000 will be mostly rebrands, and Tahiti may not even follow HD 7000 naming references at all.

Starting to look like nvidia's phantom 9000 series of cards which were all rebrands.
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Re: AMD Radeon 7000 Series

Postby DIREWOLF75 » Sun Nov 20, 2011 12:44 pm

Cow187 wrote:http://www.techpowerup.com/155365/Several-Entry-thru-mid-Radeon-HD-7000-GPUs-Mere-Rebrands.html

According to this HD 7000 will be mostly rebrands, and Tahiti may not even follow HD 7000 naming references at all.

Starting to look like nvidia's phantom 9000 series of cards which were all rebrands.


IF it´s a matter of rebrands, and this is the first i heard about it, then the big question will be wether its an honest rebrand or if it´s just fakery.
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Re: AMD Radeon 7000 Series

Postby Silver » Sun Nov 20, 2011 12:55 pm

Perhaps all the low end/middle card might be rebrands??
But if they are made with the 28nm process they will still be faster than previous versions.. the question is what do they mean with *rebrands* ?

Atleast the 79XX versions will be with the new graphics core.
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Re: AMD Radeon 7000 Series

Postby Silver » Sun Nov 20, 2011 1:03 pm

Posting these, if they are valid or not, that is the question.

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Re: AMD Radeon 7000 Series

Postby Hammer_Time » Sun Nov 20, 2011 1:34 pm

7970 will be priced outside of reach of most people's wallet/budget of course.

Hoping 7950 is not "too" expensive, it should overclock like hell and be a fantastic bang for the buck, but won't know for a few more months of course...
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Re: AMD Radeon 7000 Series

Postby <R.t..>^>Fusionc » Sun Nov 20, 2011 11:11 pm

I don't know, I find the XDR2 which is from Rambus (which lost a major case recently) to be suspect. Why would you use XDR2 in a GPU setup when GDDR has proven itself over and over again?
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Re: AMD Radeon 7000 Series

Postby Hammer_Time » Mon Nov 21, 2011 12:12 am

frequency and thus memory bandwidth and lower power requirements... 7 to 8 Ghz with XDR2 memory vs current "wall" of around 5.5 to 6 Ghz of current DDR-5 vram...

Requoting from previous post:

The HD 7970/7950 are expected to use the XDR2 memory which would provide double the memory bandwidth when compared to GDDR5, 6Gbit/s (GDDR5) Vs 12.8Gbit/s (XDR2) while reducing the total power consumption to nearly 30%, This means that the card would not only perform better but also feature better Power/Thermal efficiency then previous HD 6000 Series cores.

However, The GNC Architecture and use of XDR2 is only limited to the High End Chips,
Details on Key features of AMD’s HD 7000 Series Architecture below:

* L1 and L2 read / write caching
* Out of order resource allocation
* ECC data protection on SRAMs and global memory
* Parallel primitive

A few highlights from the talk: Multiple primitive pipelines for setup, etc.
Real caching in L1, L2, separate color / z caches for graphics and atomics
Concurrent tasks
Out of order resource allocation
ECC on srams and drams
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Re: AMD Radeon 7000 Series

Postby Silver » Mon Nov 21, 2011 12:13 am

Oh thats rambus lol, didn't really reflect over the name.
Kind of thought they hade stoped making products in favour of trolling the patent office :?

Btw they lost their big court case recently.. their stock plummeted, fell 60% or something...

http://www.brightsideofnews.com/news/2011/11/17/rambuses-legal-waterloo-loses-case-against-micron-and-hynix.aspx
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Re: AMD Radeon 7000 Series

Postby DIREWOLF75 » Mon Nov 21, 2011 3:04 am

Oh thats rambus lol, didn't really reflect over the name.
Kind of thought they hade stoped making products in favour of trolling the patent office :?

Btw they lost their big court case recently.. their stock plummeted, fell 60% or something...


I wish them a happy bankruptcy.


Well you can WISH cant you? :twisted:

RAMBUS just needs to die a horrible company death.


Trial Embarrassment
Intel's testimony during the trial tapped the nail into Rambus' coffin. Intel testimony related to the court that Rambus' DRAM technology was not ready for market and its failure was mostly due to the Rambus' inability to understand basic market requirements in which reliability is of the utmost importance. Dell Computer suffered some 300% higher field returns over DDR SDRAM with their foray into the Rambus DRAM technology. Intel lost over a billion dollars in the i820 recall and when all was said and done, the company finally decided that they could not rely on Rambus for the future of their memory requirement and turned to DDR2 instead.

:lol:
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Re: AMD Radeon 7000 Series

Postby Sauron_Daz » Mon Nov 21, 2011 11:51 am

Silver wrote:Posting these, if they are valid or not, that is the question.

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Source: Geeks3D


There is a weird duck inthere. A 6970?
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Re: AMD Radeon 7000 Series

Postby Sauron_Daz » Mon Nov 21, 2011 11:59 am

DIREWOLF75 wrote:
Oh thats rambus lol, didn't really reflect over the name.
Kind of thought they hade stoped making products in favour of trolling the patent office :?

Btw they lost their big court case recently.. their stock plummeted, fell 60% or something...


I wish them a happy bankruptcy.


Well you can WISH cant you? :twisted:

RAMBUS just needs to die a horrible company death.


Trial Embarrassment
Intel's testimony during the trial tapped the nail into Rambus' coffin. Intel testimony related to the court that Rambus' DRAM technology was not ready for market and its failure was mostly due to the Rambus' inability to understand basic market requirements in which reliability is of the utmost importance. Dell Computer suffered some 300% higher field returns over DDR SDRAM with their foray into the Rambus DRAM technology. Intel lost over a billion dollars in the i820 recall and when all was said and done, the company finally decided that they could not rely on Rambus for the future of their memory requirement and turned to DDR2 instead.

:lol:


Yes. Rambus must end.
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Re: AMD Radeon 7000 Series

Postby DIREWOLF75 » Mon Nov 21, 2011 6:40 pm

There is a weird duck inthere. A 6970?

Very likely placed there to give something to compare against.
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Re: AMD Radeon 7000 Series

Postby Hammer_Time » Mon Nov 21, 2011 10:25 pm

Dire is right, the current top of the line single gpu card ( 6970 ) spec's are listed in that chart just so you can compare the old generation to the new generation more easily...

Interesting how nearly identical the new ( if true ) HD 7870 specs are to the old HD 6970 specs eh!!?? :wink:

The two flagship XDR cards will have twice the ROPS of old 6970, 64 vs 32... impressive! :shock:
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Re: AMD Radeon 7000 Series

Postby Sauron_Daz » Wed Nov 23, 2011 7:14 am

They get a lot more of everything..using less power.
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Re: AMD Radeon 7000 Series

Postby psycho_mccrazy » Mon Nov 28, 2011 7:48 am

If these are true, I may be looking at a 7950 once the reviews come out!
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