Internal documents seen by The Register show Power7 with eight cores per processor and also some very, very large IBM boxes based on the chip. The IBM documents have the eight-core Power7 being arranged in dual-chip modules. So, that’s 16-cores per module. As IBM tells it, each core will show 32 gigaflops of performance, bringing each chip to 256 gigaflops.
IBM’s Eight-Core Power7 Chip to Clock in at 4.0GHz
July 11, 2008