Which one is faster?

The XP 2600 is faster.

Sempron are lowsy. I don't know why AMD bothered to build them. I suppose there OK for "Library" PC's).

<font color=red><b>DCB</b></font color=red><font color=white><b>_</b></font color=white><font color=blue><b>AU</b></font color=blue>
 
Be nice, or I'll have to mention that you have a celeron.
Okay, it's a celeronD, which is pretty good. A sempron 2600 is about as fast as a celeronD@2.6ghz. A T-bred xp2600 is about as good as a P4b@ 2.66. The xp is about 10% faster than the sempron.
 
Thanks for the answers guys.My Sempron specs are this:


AMD Sempron 2600+ 1.833GHz, 333MHz FSB 256KB L2 Processor -
Core: Thoroughbred
Operating Frequency: 1.833GHz
FSB: 333MHz
Cache: L1/64K+64K; L2/ 256KB
Voltage: 1.65V
Process: 0.13Micron

AND MY athlon xp specs are this:


Model: AMD Athlon XP 2600+
Core: Barton
Operating Frequency: 1.9GHz
FSB: 333MHz
Cache: L1/64K+64K; L2/512K
Wattage: 55W
Voltage: 1.5V
Process: 0.13Micron
 
He He, I deserve that :)



<font color=red><b>DCB</b></font color=red><font color=white><b>_</b></font color=white><font color=blue><b>AU</b></font color=blue>
 
The Athlon XP had 4 core revisions, palomino, thoroughbred A, thoroughbred B and Barton.

The sempron can use one of 2 cores, either a cut down version of the Athlon64 core or the thoroughbred core from the old althon XP. Your one uses the thoroughbred core.

My point being that the sempron IS the AthlonXP. (Although your Athlon XP is still faster because it has more L2 cache).
 
Both CPUS sit on different computers but using the same MOBO...ASUS A7V880

TO tell you the truth...I find very little differences on both computers speed and performance...maybe the ATHLON XP has a small edge.
 
That is a logical assumption, but still an assumption... benchmarking is the only way to tell for sure, I don't think the performance difference is worth the effort. They will more than likely be within about 10% of each other and you won't be able to tell the difference in most common applications taht aren't CPU intensive. JMHO.

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<font color=red>You're a boil on the arse of progress - don't make me squeeze you!</font color=red>
 
That only holds true if you are comparing a barton core AthlonXP to a thoroughbred core sempron.
The older AthlonXP's use the thoroughbred core and so will be exactly the same as the sempron.
There is also a sempron that uses the Athlon64 core (with half the cache and 64bit disabled), I have no idea how well this one performs.
 
However... The thoroughbred core Semprons have a higher PR rating - that 2600+ Sempron is the same chip as the XP2400+ Thoroughbred (or was it the 2200+? I forget), AMD just renamed it for the change in its market segment. So in all cases (99.9% certain), an XP chip of the same PR rating will perform better than a Sempron. The same way that the 3100+ Sempron (s754) doesn't perform as well as an A64 3000+ (it's slightly slower than a 2800+).

Mike.