This is a list of Socket A's available:
This is where I got them from, and this review is basically a shoot out between those three cores running at 2500+ AMD spec speed. Though, if your going to get a higher speed than that, you can still use this as a proof for how good each processor is
THIS IS THE CONCLUSION TAKEN FROM THAT SITE:
"So what was going to be a relatively easy summary has now become a little bit more convoluted thanks to the extreme overclocking ability of the Mobile Athlon chip.
Basically in short we can conclude the following.
- If you're looking to run at straight out of the box stock speeds, then going for the Athlon XP 2500+ should be a no brainer. The XP either beats or almost matches the Mobile chip in every benchmark and can be had at a lower price
- If however you're a tweaker, a freaker, a mad cookie eater, then by all means spend that extra four bones that is burning a hole in your pocket and pick up a Mobile Athlon chip (and as you can see above, we found it for the exact same price as the standard Barton). Even if by some chance you get a dud in the overclocking department you'll still have a chip that can easily run at stock XP speeds all the while requiring MUCH less voltage which will enable you to have a quiet if not super fast gaming system.
- Finally, if you're looking at the Sempron do it only if you absolutely cannot afford that extra ten bucks that it's going to cost you to move up to a Barton based XP processor. Though admittedly marketed at the low end internet/email usage market, AMD 2500+ Performance Rating system just doesn't hold up here. With the return of the low end Duron-esque processor let's hope AMD moves to a new naming system so as not to confuse Joe AOL who picks up a Sempron 2500+ thinking he's getting a great deal picking up the newest AMD chip at a great price to expecting it to perform at par with the regular Athlon XP chip his twelve year old kid made him promise to get."
I hope this helps with your decision