The tech forumscape is abuzz with a picture and specifications of a so-called "Radeon HD 8970" graphics card. Its product design isn't much different from a reference-design Radeon HD 7990. In fact our first thoughts about the picture were that someone put an HD 7990 under Photoshop's knife, and that's still quite possible. The card features the same protruding power connectors, a combination of 6-pin and 8-pin; two CrossFire connectors, a BIOS switch, and an aluminum-copper fin-stack heatsink with two 80 mm fans on the job.
The Radeon HD 8970 in this leak is said to be based on the 28 nm "Curcao" silicon, which doesn't appear to be much different from the "Tenerife" leak from 2012. The chip features 2,304 Graphics CoreNext stream processors, 144 TMUs, 48 ROPs, and a 384-bit wide GDDR5 memory interface. In addition to the 12.5 percent increases in stream processors and TMUs, the chip features a 50 percent increase in ROPs. The core is clocked at 1000 MHz, and even at 6.00 GHz, the chip would belt out a memory bandwidth of 288 GB/s. The TDP of this chip is said to be 250W, which suggests it's built on the current 28 nm process. Our take on the matter is that AMD is frantically working on a new 28 nm high-end single-GPU product line to keep its high-end segment afloat before its "real" next-generation arrives in late-2013, built on the 20 nm silicon fabrication process. Those GPUs could be branded Radeon HD 9000 series.
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