|04-25-2005, 05:03 AM||#1|
Join Date Nov 2004
Sempron vs. Athlon XP
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Title: Sempron vs. Athlon XP
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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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|09-29-2005, 06:24 PM||#2|
Join Date Sep 2005
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.
|03-07-2011, 10:04 AM||#4|
Join Date Oct 2004
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.
Last edited by Gabriel Torres; 03-08-2011 at 08:37 AM.
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