AMD Tahiti GPU Specifications Compiled

[Azurite]

"If the word on the optical fibers is true, we are less than a month away from the launch of AMD's next high-end graphics card family based on its next high-performance GPU, codenamed "Tahiti". According to 3DCenter, AMD will launch new graphics card models based on this GPU around January 10, 2012. It is expected that we'll learn a lot more about these GPUs, maybe even come across AIB-branded graphics cards, at the upcoming CES event.

3DCenter compiled specifications of "Tahiti", based on bits and pieces of information from various sources. The specs can be listed out as:

4.50 billion transistors, die-area of 380 mm², built on TSMC 28 nm process

Advanced GCN 1D architecture

2048 1D processing cores

128 TMUs, 48 ROPs

384-bit wide GDDR5 memory interface, memory clock slightly below 1 GHz, target bandwidth of 240~264 GB/s

In Gandhi's words, salt is as free as the air."

source

You know Amd. It says 4,5billion transistors, but it might only have 2,6b.

 

[Timbaloo]

You know Amd. It says 4,5billion transistors, but it might only have 2,6b.

Anyway, can't wait to see where they're going with the next gen cards

 

[SieB]

So the 384 bit memory is confirmed, can't wait to see some benches. I bet these cards would have been released by now if it wasn't for CES.

As much as I like CES it delays a lot of releases because manufacturers want to show off and reveal their new stuff there, can't blame them for wanting to do it but things always get held back because of it.

 

[marsey99]

chinese new year stalls launches after ces too :/

 

[SieB]

I forgot about Chinese new year, damn.. more delays

 

[Solidarity]

Looks like it has some good potential

 

[SieB]

Just saw this bit of news that says based on the specs the 7970 could have up to a 60% performance increase.

Makes me wonder if those suspect benches for the 7970 showing it being as fast or faster than a 6990 may have some truth to them.

Come from our forum in two posts ( No.1  & No.2  ) further details concerning the AMD R1000/Tahiti-Grafikchip: Then we can now the die size of approximately 380mm ² determine much more precisely, this is virtually the same as the previous chip RV970/Cayman (389mm ²). Sets a 70 per cent advantage in space through the 28nm manufacturing the same packing density as in the previous AMD chips could R1000/Tahiti thus come to about 4.5 billion transistors - or a few hundred million more or less, so this estimate is not yet exactly but it shows already in the right direction. In the roughly 70 percent more transistors AMD must be the new GCN architecture  , the pack a little more complex 1D shader units and the wider 384-bit DDR memory interface, so that a complete unit doubled over the RV970/Cayman-Chip is beyond question.

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