12/20/2011 06:56:00 PM
dannzfay
The leaked slides detailing AMD’s next-generation Radeon HD 7970 graphics card don’t seem to ever come to an end as recently the ones available so far have been joined by a series of new documents detailing the card’s performance in compute applications as well as some other details.
These new slides from AMD’s Radeon HD 7970 presentation deck were published by a user on the XtremeSystems forum which goes by the name of Vipeax.
One of the most interesting pieces of information uncovered by these new documents were found in a presentation slide entitled “Utilization and Efficiency,” which details the Radeon HD 7970 compute performance per square mm when compared to the HD 6970.
As one can clearly see from the pictures included bellow, in all the test scenarios run the HD 7970 came out on top, with differences varying between 1.5x in SHA56 and about 4.5x in an AES256 encryption benchmark.
The leaked AMD documents also come to detail a new anisotropic filtering algorithm that the company has included in the HD 7900 series GPUs and which it claims that can deliver improved image quality without any performance costs.
AMD’s Radeon HD 7970 is based on the Tahiti XT core which is built using the company’s new Graphics Core Next (GCN) architecture designed specifically to improve the compute performance of its cards.
A recent leak revealed that this GPU would feature 32 Compute Units, for a total of 2048 streaming cores, 128 texture units, 32 ROPs and a 384-bit wide memory bus.
This will be connected to 3GB of GDDR VRAM working at 1.37GHz (5.5GHz effective), while the GPU will be clocked at 925MHz. The graphics card is expected to be announced on December 22, with availability being scheduled for January of 2012.
Posted in: 
0 comments:
Post a Comment