Pentium M against P4 GHz numbers?

[AlexK]

I've heard there is a 1.4 ratio when converting GHzs of M CPU to P4 CPU. So 2.13GHz M will equal 2.98Ghz P4? Do you know anything about it?

[Nick]

2GHz M calculates PI about 15% slower than P4 3.4GHz.
But I'm sure it's task-dependent.