Naprosta blbost... hned prvni vec co uvadi intel:
Rapid Execution Engine
Part of the Pentium® 4 processor's Intel® NetBurst™ micro-architecture. Two Arithmetic Logic Units (ALUs) are clocked at twice the core processor frequency, allowing basic integer instructions such as Add, Subtract, Logical AND, and Logical OR to execute in half of a clock cycle. For example, the Rapid Execution Engine on a 1.50 GHz Pentium 4 processor runs at 3 GHz.
Pricteme k tomu moznost mit soucasne v pipeline rozpracovano az 126 instrukci... 1 za takt asi fakt ne .)