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Old 04-25-2005, 04:03 AM   #1
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Default Sempron vs. Athlon XP

There has been a new article posted.

Title: Sempron vs. Athlon XP
URL: http://www.hardwaresecrets.com/article/127

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Since the day Sempron CPU from AMD was released one of the most frequently asked question is "afterall, what is the difference between Sempron and Athlon XP?"
Sempron is a slower Athlon XP (the excep...

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Old 09-29-2005, 05:24 PM   #2
la'quv
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Talking True Processor Performance Sempron vs. Athlon XP

The biggest difference between the Sempron and the Athlon XP is the number of
instructions per cycle each chip can run.
The Sempron can run 12 instructions per clock cycle (4 integer, 4 floating point, and 4 memory access)

Where as the XP can only run 9 instructions per clock cycle.
The processors clock speed is not a measure of true processor permance.
Instructions per Clock Cycle X Clock Speed = Instructions per sec. with is the true performance of a processor.

Lets compare for example the Athlon 2200 with the Sempron 2200.
Sempron 2200: 1.5GHZ X 12 IPC = 18 billion instructions per second
Athlon 2200: 1.8GHZ X 9 IPC = 16.2 billion instructions per second
As you can see the Sempron 2200 runs a bit of a higher instructions per sec.
The number scheme of the AMD processors make more sense if you look at it from this perspective.
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Old 03-06-2011, 11:30 AM   #3
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Default So which is better?

So wait which is better it sounds like your saying the Sampron is a better CPU?
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Old 03-07-2011, 09:04 AM   #4
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Default

Other technologies, such as the size of L2 memory cache, will define the true performance of the CPU.

After thinking about this for a while, and I think the user made a confusion. The original Sempron uses the same architecture as the Athlon XP, so they provide (in theory) the same performance at the same clock rate. Maybe he was referring to the Sempron that is based on the Athlon 64 CPU. It is always messy when the manufacturer uses the same name on different products.

Cheers,
Gabriel.

Last edited by Gabriel Torres; 03-08-2011 at 07:37 AM.
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