28nm Radeon chips likely this year
A revamped GPU lineup based on the 28nm manufacturing process could be introduced by the end of the year
Interim AMD CEO Thomas Seifert revealed that his company already has working samples of GPUs fabricated using a 28nm manufacturing process. AMD also says it is on track to unveil a revamped GPU lineup, codenamed Southen Islands, using the new process later this year.
Both Globalfoundries and TSMC will likely be used to manufacture new GPUs using the 28nm process. Going this route AMD will need independent GPU designs for each foundry because of differences in the way that each foundry works.
By shifting over to this new process AMD will likely enjoy significant cost savings, assuming it experiences good yields from the 28nm process immediately. When a new fabrication process is introduced, yields can vary greatly in terms of quality until the process is further fine-tuned.
GPUs manufactured using the new 28nm process will also require less power and will thus run cooler than their predecessors. Currently, AMD uses a 40nm manufacturing process to produce its existing range of Radeon GPUs.