Videocardz.com: Well, maybe this is not a leak, but prediction. Hard to say, it’s quite good source though — they leaked Tahiti specs few months before launch. AMD Radeon HD 8000 series are believed to feature Sea Islands GPUs. This updated Graphics Core Next architecture would still be made with 28nm process. It’s worth saying that HD 8870 and 8850 would not be the fastest Sea Islands GPUs in the pack. The one that we are going to describe should be compared to Pitcairn, which has 2.8 billion transistors. The GPU that is powering Radeon HD 8870 and HD 8850 is called Oland and it would feature 3.4 billion transistors. Die size of this Oland processing unit is estimated at 270-280mm2.