Vortez - Computer Hardware News & Reviews » News » September 2011 » AMD Radeon HD 7000 Series Specs Leaked

Specifications of the coming AMD Radeon HD 7000 series has been leaked and are looking pretty tasty.




The above table shows currently known codenames and model designation for AMD's next generation 'Southern Islands' graphics cards.

The leak comes amidst AMD's vow to release 28nm graphics cards this year with Q4 dawning on us it would be no surprise to see some rumours and numbers bouncing around. While they are not confirmed and should be taken with a pinch of salt these leaks will always generate interest. Unfortunately there is nothing listed for the flagship dual 7990 but it is possible to go by the numbers of the 7970 and make an educated guess. Only the 7900 series cards will use the GCN (Graphics Core Next) architecture with Compute Units as well as using XDR2 memory, which Rambus touts to be the fastest memory system in the world, offering double the bandwidth per circuit of GDDR5 while using 30% less power. The rest of the 7000 series cards will be using the VLIW4 architecture first seen in the Radeon HD 6000 series though with improved SIMD wide-vector execution.

Other 7000 series notes are:
-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

The Specs




AMD Radeon HD 7000 Southern Islands 28nm

HD 7990 New Zealand GCN (no details) likely double 7970 with core/memory speed and TDP dependant on NVIDIA competition.

HD 7970 Tahiti XT GCN 1000MHz 32CUs 2048ALUs 128TMUs 64ROPs 256bit XDR2 8.0Gbps 256GB/s 2GB 190W HP
HD 7950 Tahiti Pro GCN 900MHz 30CUs 1920ALUs 120TMUs 64ROPs 256bit XDR2 7.2Gbps 230GB/s 2GB 150W HP
HD 7870 Thames XT VLIW4 950MHz 24SIMDs 1536ALUs 96TMUs 32ROPs 256bit GDDR5 5.8Gbps 186GB/s 2GB 120W HPL
HD 7850 Thames Pro VLIW4 850MHz 22SIMDs 1408ALUs 88TMUs 32ROPs 256bit GDDR5 5.2Gbps 166GB/s 2GB 90W HPL
HD 7670 Lombok XT VLIW4 900MHz 12SIMDs 768ALUs 48TMUs 16ROPs 128bit GDDR5 5.0Gbps 80GB/s 1GB 60W HPL
HD 7570 Lombok Pro VLIW4 750MHz 12SIMDs 768ALUs 48TMUs 16ROPs 128bit GDDR5 4.0Gbps 64GB/s 1GB 50W HPL

Interestingly it differentiates the 28nm fabrication used. Considering that there has been questions about the HP fabrication not being ready, this would suggest that the 7900 series will be released later than the HPL cards. So expect to see the 7870 hitting the shops first.

Source 1 2

Tagged as: amd, southern islands, radeon, 7000

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Mythril Posts: 998 Joined: 2010-11-03

#17781 Posted on: 05.09.2011 22:06:54 1000 MHz GPU for the 7970 Damn that thing is gonna run hot. I really hope that AMD have a better cooling solution than their current 6970's. Mine was so loud it woke my partner up at 1:15am whilst I was playing Metro 2033. I love AMD, I really do but I've gone green this time around and I may go green the next time. Roll on the benchmarks

I3R0K3N7FEET Posts: 607 Joined: 2011-02-26

#17784 Posted on: 06.09.2011 03:33:56 well if the numbers are real, then at 190TDP it will be significantly cooler than the 6970 though i totally agree, amd need to get rid of those silly dremel like radial fans and release good quality reference cooling.

Helios1234 Posts: 2570 Joined: 2009-02-17

#17794 Posted on: 06.09.2011 11:46:38 Quote: Originally Posted by I3R0K3N7FEET well if the numbers are real, then at 190TDP it will be significantly cooler than the 6970 though i totally agree, amd need to get rid of those silly dremel like radial fans and release good quality reference cooling. Thing is, even the blower type cooler on my GTX570 is quiet so I can't see how AMD can't make a good one.

Mythril Posts: 998 Joined: 2010-11-03

#18156 Posted on: 18.09.2011 22:11:44 Not the best news... "Besides the launch of AMD Bulldozer and Intel Sandy Bridge-E we are eagerly awaiting the first graphics cards with GPUs built on the new 28nm node. NVIDIA has already confirmed that its first graphics cards built on 28nm will come in 2012 and we can now confirm that the same applies to AMD. The reason is because the HD 6000 series is still in high demand. The new cards from AMD and NVIDIA at 28nm are anticipated by many, but none of the companies are near to release cards. NVIDIA has confirmed that it will not launch any products on 28nm this year, but wait until early 2012. We have now acquired information that says the same about AMD. The launch has been moved from 2011 to 2012 due to high demand for the HD 6000 series, and capacity problems. AMD has been having capacity problems over the last months for HD 6000, which has led to orders from OEM manufacturers and distribution channels have been stacking up. It also says that the HD 6000 series is hardly a year old and there is no rush to introduce the HD 7000 at the present day." Source

Helios1234 Posts: 2570 Joined: 2009-02-17

#18158 Posted on: 19.09.2011 02:29:10 Makes sense.

w3bbo Moderator Posts: 607 Joined: 2011-04-21

#18169 Posted on: 19.09.2011 08:47:19 I'd much rather them do this than to do what NVIDIA (and to a lesser extent AMD/ATI) do and release a re-hash of graphics cards from the parts bin of a previous generation and claim it to be 'new'. It's understandable to have 1000MHz stock as most AMD cards are capable of that with aftermarket cooling even with the current architecture. Like has been stated though, they really need to sort their coolers out. Something along the lines of GIGABYTE's Windforce or MSI Twin Frozr design seem to work very well and are also very quiet. PErsonally I'd rather pay the little extra and have a cool quiet card than a hot, noisy one!

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Vortez - Computer Hardware News & Reviews » News » September 2011 » AMD Radeon HD 7000 Series Specs Leaked