How fast is the a5 dual core processor in an Iphone 4s?

Android phones use ghz ie 800hz or 1.2 ghz where the Iphone use A3, A4, A5 or now A6 dual core. How do you cross reference them.

They have very low quality compared to the android smartphones of it's class. Mid range android phones comes with 1.2-1.6 ghz single or dual core chips manufactured by giants like ARM and Qualcomm and even Intel. And high end chips… What to tell.

A6 chip has twice the power of A5 chip. Actually the A6 chip is quite to par with chipset used in sgs3 as per benchmark but sgs3 gets better result when jellybean is used. And android phones are power hungry so are the android users.

The A5 in the iPhone 4S is apparently a dual-core at 800Mhz. It's difficult to compare the iPhone CPUs to Android since iOS is written specifically for these CPUs and so they get much better efficiency out of them than a lot of Android phones.

At the end of the day it doesn't really matter what the numbers are, it matters how the phone performs and both top-end Android handsets and the iPhone 4S are fast, smooth and very capable.