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Old 10-19-2011, 07:48 PM
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medion medion is offline
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Default Smartphone CPU Primer - updated 01/05/2012

The contents of this thread can be discussed here. This sticky shall remain closed.

Contents:
  1. Contents/Purpose
  2. System on a Chip/MPCore/Instruction Set
  3. ARMv6 and ARM11
  4. ARMv7 in 2009
  5. ARMv7 in 2010
  6. ARMv7 in 2011 - Cortex A9
  7. ARMv7 in 2012 - Cortex A15/Krait

Purpose:

The purpose of this thread is to give the reader a better understanding of the actual hardware in their smart phone. This is to give the reader a more informed buying decision. Too often you hear the advertisement state that "such and such phone is faster because it has a 1.2ghz processor as opposed to 1ghz," or something to that effect. The problem is that some processors do more work in a clock cycle, meaning that "megahertz" is not the ideal measurement to determiner a processor's capabilities.

An analogy would be the gears in your car. If one car is running at 6000RPMs, while the other is going at 4000RPMs, which car is going faster? Well, to know the answer, you'd have to know what gear they're in, and what the gear ratio is. The same applies to processors. The statistic that I prefer to use is that of DMIPS, or Dhrystone MIPS. This is a consistently measurable variable that gives real world performance of a chip. Vendors cannot get away with lying or exaggerating this performance because it is so easily measurable in a consistent manner.
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[U][B]DAP:[/B][/U] Sansa Clip+ 8GB [/COLOR][/SIZE][SIZE=2][COLOR=DimGray]w/32GB MicroSDHC[/COLOR][/SIZE]

Last edited by medion; 01-05-2012 at 01:44 PM.

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