I got the following info from a CPU (Computer Power User) Special Edition magazine called PC Modder.
Athlon 64 3200+
Core : Barton
Speed : 2.2 GHz
System Bus Speed : 400MHz
L1/L2 : 128/512KB
These are the correct specs for an Athlon XP
An Athlon 64
3200+ runs at 2.0GHz
, has the 'Clawhammer'-core and a 1MB L2-cache. Furthermore, an Athlon 64 doesn't have a FSB in the common sense anymore...instead, it has a Hypertransport I/O-link, clocked at 800MHz physically
which results in a 1.6GHz effective
'clockspeed' since it is DDR'ed(just like the Athlon XP's FSB).
Raw clockspeed, i.e. MHz/GHz is no longer the most significant factor in terms of performance - different architectures such as that of an AMD Athlon XP or Athlon 64 and an intel P4 cannot be compared by simply comparing raw clockspeed.
In order to facilitate comparability of different Processors according to their performance(NOT raw clockspeed), AMD introduced a 'Quantispeed
' ">http://www.amd.com/us-en/asset...31B_Quantispeed_wp.pdf'-rating for their processors.
Since an Athlon XP can do more work per clock-cycle than a P4, it will perform about equal to a much higher clocked P4 - hence the xxxx+ rating.
This is because basically, intel's 'Netburst'-architecture(what the P4 is based on) sacrifices efficiency in order to be able to attain high clockspeeds.
In most cases, an Athlon XP xxxx+ should perform equal to or better than a P4 clocked at the corresponding figure in MHz(e.g. an AXP 2000+ performs about equal to or better than a P4 2.0GHz(=2000MHz)).
Actual performance depends on the application you're running...for example, an AXP will perform better than a comparable P4 model in most games, whereas the P4 will perform better in some media-encoding and rendering applications since a lot of them are optimized for its architecture.Here's
' ">http://www.amd.com/us-en/asset...nd_tech_docs/30579.pdf AMD's Processor Performance Evaluation Guide.
It's the latest version for the Athlon 64-line - it will give you an idea about how this rating works.
The opinions expressed above do not represent those of Advanced Micro Devices or any of their affiliates.
AMD Athlon 64 X2 6000+ 89W :: Asus M2N32SLI Deluxe :: 2x1024MB Muskin XP2-6400 DDR2-800 :: BeQuiet! Darkpower Pro 530W :: 2x WD Raptor 74GB/10k rpm, RAID 0 :: ATI Radeon X1950XTX