A couple of websites have published what appear to be the first detailed specs of AMD's new 28nm GPU, codename Oland, that will eventually be behind AMD's Radeon HD 8800 series graphics cards.
The rumors put the 28nm Oland GPU at 3.4 billion transistors on a 270mm2 die size which is a quite an increase when compared to the Pitcairn GPU used in Radeon HD 7800 series graphics cards. Although there are no precise specs regarding the actual number of stream processors, these sites claim that the Oland GPU might also have impressive single- and double-precision floating point compute performance, as well as an impressive texture fillrate.
According to this information, the Oland XT might end up clocked at 1050MHz with 1100MHz PowerTune Boost, while the Oland Pro might end up at 925MHz with 975MHz boost. The memory should end up clocked at 6GHz, paired up with a 256-bit memory interface adds up to 192GB/s of memory bandwidth.
To make things even more interesting, the Oland XT and Oland Pro, rumored to be behind the Radeon HD 8870 and Radeon HD 8850 graphics cards, should have a lower TDP and most importantly a much (of around 20 to 25 percent) lower price tag.