In the breaks during Financial Analyst Day, one AMD executive took the time to explain why the Trinity received its name. It comes from the fact that this is a final part in which AMD will do mix-and-match between different generations of architectures.
AMD's Financial Analyst Day 2012 came and went. The feeling we have is that the company is taking 2012 and 2013 as the years in which the company will realign itself and start executing from top-to-bottom with a unified strategy on the processing cores, as well as merge the CPU and the GPU with very similar functionality.
The final part of now departing AMD’s mix-and-match strategy is the Trinity APU. While there was a lot of rumors how Trinity got its name (3-display Eyefinity theory is now out the door, since Trinity APU supports up to six displays), the company did not elaborate on the origin of the codename until now.
Trinity that got its name due to the fact that it is consisted out of three distinctive architectures. This is a first x86 processor from AMD that will utilize a second generation Bulldozer core, codenamed Piledriver. Furthermore, the GPU part is consisted out of two parts: shader cores and fixed function units come from Northern Islands architecture (Radeon HD 6000 Series), while video processing engine and multi-display connectivity come from Southern Islands GPU architecture (Radeon HD 7000).
Hence, forget the biblical context, ok?