For this round of testing we kept the front side bus of our P4T at a constant 100MHz, changing only the multiplier frequency to give you a better idea of how Pentium 4 performance scales. For those of you with multiplier-locked Pentium 4's, this will give you a good idea how your processor fares at its default setting in relation to the other available members of the P4 family.

For the most part, memory bandwidth between these processors should remain fluid, since the frequency of the front side bus is not changing. Repeated tests in Sandra introduce variations of around 100MB/s, so we'll accept our results as accurate, despite the differences.

Results from the CPU and Multimedia benchmarks also demonstrate fairly uniform results, showing a pretty linear increase in performance as the Pentium 4 ramps up in clock frequency.

3D WinBench 2000 confirms the linear increase we saw in Sandra 2001. This should give us some sort of expectation as to what the 1.6GHz Pentium 4 will offer once it is announced.