Which is faster? TI OMAP 850, 201 MHz Intel XScale PXA 27x 520MHz processor for PDA's.?

Question

common sense tell me that the 520 mhz is much faster compared to a 201 mhz, but does the proc itself differ in speed?(TI OMAP 850 vs Intel XScale PXA 27x ). ive tried both pda's(HTC touch & O2 XDA Atom Exec) using multi tasking by running applications(wmplayer,Iexplorer,and games) but some how HTC seems much stable than O2. can some body clarify this for me?

Answer 1

the 520mhz is two times faster