AMD is a company that never stops release new products where they are in heavy competition with NVIDIA. Therefore they are preparing to launch products with the latest GPU architecture and the most reliable. Series GPU will be named "Sea Islands" which will be the Radeon 8000 series brand.
Rumor says that this GPU will have 5.1 billion transistors with the 28nm manufacturing technology. Keep in mind that the GPU product currently has 4.3 billion transistors in which the increase in the number of transistors is 18%. However, this GPU promises 40% performance improvement.
For the internal configuration of the GPU architecture is composed of 2560 stream processors, 160 texture units (TMU), and 32/38 ROP units and 384 bit memory bus. Talk like a frequency rate has not changed.
Later there are three types of GPU with this architecture are: Venus (the highest specifications), Oland and Mars.
Die size: 135 square millimeters or 160 square millimeters.
Transistor count: 1.7 billion or 2.0 billion.
Stream processing units: 768 units or 896 units.
TMUs: 40 units or 48 units.
ROPs: 16 units for both possible variants.
Memory BUS width: 128 bits or 192 bits.
Die size: 85 square millimeters.
Transistor count: 0.9 billion.
Stream processing units: 320-384 units.
TMUs: 20 or 24 units.
ROPs: 8 or 16 units.
Memory BUS width: 64-128 bits.
But you have to patiently wait for the new product ‘AMD Radeon 800’ may be present early in 2013 and begin production later this year.