It depend on type
Mobile AMD Sempron™ Processor for Thin and Light Notebooks
Model Number TDP Frequency L2 Cache
3300+ 25W 2.0 GHz 128 KB
3100+ 25W 1.8 GHz 256 KB
3000+ 25W 1.8 GHz 128 KB
2800+ 25W 1.6 GHz 256 KB
2600+ 25W 1.6 GHz 128 KB

Mobile AMD Sempron™ Processors for Full-Size Notebooks
Model Number TDP Frequency L2 Cache
3300+ 62W 2.0 GHz 128 KB
3100+ 62W 1.8 GHz 256 KB
3000+ 62W 1.8 GHz 128 KB
2800+ 62W 1.6 GHz 256 KB
2600+ 62W 1.6 GHz 128 KB

Mobile AMD Athlon 64 Processor (DTR) TDP 81.5W

K7
Athlon XP-M 2500+ [45 Watt Mobile]
Athlon XP-M 1600+ 25W
Athlon 4 1600+ [ Palomino ] 35W

Best source http://fab51.com/index-e.html

Good thing about 筆電板Mobile is you can 超頻 [unless game or UD 24 hours] and 省電 at same time, my CPU XP-M 2500+ is 98% time at 667, but speed is=2084 all the time.

K7不管是desktop還是mobile都無鐵蓋吧

我是用一顆mobile XP-M 1800+ 45W,讓他跑最低速(800MHz,1.12V),可以更省電