SYSmark2004 shows that the performance of Pentium 4 670 in some tasks can approach the result of Pentium 4 Extreme Edition 3.73GHz. However, this is not surprising at all. The newcomer works at higher clock frequency of 3.8GHz, and the only thing Pentium 4 XE has to oppose the higher clock rate with is the faster system bus working at 1067MHz.