Stands for "Composite Theoretical Performance." CTP is used to measure the performance of computer processors. The values returned by CTP calculations are used for benchmarking purposes, which compare the performance of different processors. For example, Intel and AMD use CTP calculations to measure how many millions of theoretical operations per second (MTOPS) their processors can perform. An Intel Pentium M 770, which runs at 2.13 GHz, has a CTP of 7100 MTOPs, while an AMD Opteron 146, which runs at 2.0 GHz, has a CTP of 7168 MTOPS.
As seen in the example above, faster processor speeds do not always result in a higher CTP. Other considerations, such as the processor's architecture and the speed of the frontside bus also affect the overall performance. CTP is useful for comparing different brands of processors, as well as comparing different models of processors made by the same company. With dual and quad processors becoming more prevalent, CTP is now also being used to measure the performance increase when multiple processors are used together.
CTP also stands for "Computer to Plate." This is a process where printing plates are made without using costly film. Instead, the images are sent directly to the plate from the computer.