differences between AMD CPUs, laptop vs desktop.
 

Of course laptop is more convenience when need to run somewhere with it, but usually it's a lot slower and...

Anyone familiar with AMD enough to tell me the differences between the below AMD CPU? The most I care is the CPU speed, can anyone give detail explanation and recommendation?

Toshiba laptop: AMD Dual-Core E-300 Accelerated Processor.
http://www.bestbuy.com/site/Toshiba+-+15.6%26%2334%3B+Satellite+Laptop+-+2GB+Memory+-+320GB+Hard+Drive+-+Black/5029063.p?id=1218600485317&skuId=5029063

HP laptop: AMD Dual-Core E-450 Accelerated Processor with AMD Radeon HD 6320
HP - 15.6" Laptop - 4GB Memory - 320GB Hard Drive - Charcoal Gray - 2000-428dx

Samsung laptop: Intel® Pentium® processor T4500. Not a dual core.
Samsung - Laptop / Intel® Pentium® Processor / 15.6" Display / 4GB Memory - Black/Silver - NP-RV510-A05US

Dell Desktop: AMD Athlon™ II X2 processor
http://www.bestbuy.com/site/Dell+-+Inspiron+Desktop+-+4GB+Memory+-+500GB+Hard+Drive/4673045.p?id=1218505323144&skuId=4673045

Thanks.

true speed is not measured in ghz. just like sports car speed is not measured in hp.

what kind of usage are you planning for?

This website is your friend to compare CPUs

PassMark Software - CPU Benchmark Charts

E-300 - 597
E-450 - 743
T4500 is dual core - 1576
Athalon II X2 250 (3.0 GHZ) - 980

I got the answer now. I missed the most important factor. Thanks guys.

anandtech.com is also a good site to check out.