AMD Radeon HD 7950 and HD 7970 specifications leaked

Few days ago we posted about the next generation of AMD's graphics GPUs, Radeon HD 7000 series and after the leaks of mobile version specifications, Today some sources on the net leaks the specifications of two flag ship graphic cards from AMD, the Radeon HD 7970 and the Radeon HD 7950 based on the Southern Islands architecture.

The two graphic cards will use the new "Tahiti" GPU and the new GNC (Graphics Next Core) architecture from AMD, divided into two version the Tahiti XT and Tahiti Pro which are based on the 28 nm process at TSMC, the Tahiti XT goes for the Radeon HD 7970 and the Tahiti Pro will goes for the Radoen HD 7950.



The specifications leaked for the Radeon HD 7970 are 32 Compute Units with 2048 cores running at a 1GHz clock speed, the GPU is interconnected with 3GB of GDDR5 VRAM using a quad data-rate transfer mode @ 1.37GHz (make it 5.5GHz effective) using a 384 bit memory bus, this result a total of 264GB/s of memory bandwidth speed.


Now the AMD Radeon HD 7950 will use the Tahiti Pro version GPU and will pack 30 CUs down with two units and some of 1920 streaming cores that run @ 900MHz clock speed.


The number of ROPs will also be decreased to 60, which will be paired with 120 texture units, as in AMD’s new architecture every CU connects to 2 ROPs and 4 TMUs.


The new GPUs will use the new liquid chamber technology to enhance cooling system instead of the vapour chamber used in the HD 6000 series, the release date of these new GPUs is expected to be during the next CES 2012 with a price tag between $349 and 449, while there is a dual-GPU version of Tahiti, the HD 7990, will debut in March 2012 and the target price is set to $699 (520 EUR).

More spotted specifications listed :

HD7970 ( Tahiti XT )
Core's 2048 operate at 1GHz clock
3GB of GDDR5 memory at 5.5GHz
Memory Bandwidth 264GB/s
Memory Bus Width 384-bits
Texture Units 128
ROPs 64
Manufacturing Process TSMC 28nm
Price $449

HD7950 ( Tahiti Pro )

Core's 1920 operate at 900MHz clock
3GB or 2GB of GDDR5 memory at 5.0GHz
Memory Bandwidth 240GB/s or less
Memory Bus Width 384-bits or 256 bits
Texture Units 120
ROPs 60
Manufacturing Process TSMC 28nm
Price $349

HD7990 ( New Zealand ) HD7970 X2 Double all specs
"March Realease"
6GB of GDDR5 memory at 5.5GHz
Price $699.
AMD Radeon HD 7950 and HD 7970 specifications leaked AMD Radeon HD 7950 and HD 7970 specifications leaked Reviewed by Maherr Live on Friday, December 02, 2011 Rating: 5