Titan was a planned family of 32-bit Power ISA-based microprocessor cores designed by Applied Micro Circuits Corporation (AMCC), but was scrapped in 2010.
[1] Applied Micro chose to continue development of the PowerPC 400 core instead, on a 40 nm fabrication process.
While being high performance, reaching speeds up to 2 GHz, it would remain extremely power efficient, drawing just 2.5 W per core.
Where there usually is a trade-off between performance and power, AMCC used the Fast14 technology from Intrinsity to build an extremely efficient microprocessor design leveraging high performance combined with low power and comparably cheap bulk 90 nm CMOS manufacturing.
The Titan had a new superscalar, out of order 8-9 stage core with a novel three-stage CPU cache design.