computer speed 2 toshiba satellite L300 laptops?

[simon42357]

is there a big difference between 2 toshiba satellite L300 laptops:

intel core duo 2.00ghz
2gb ram
360gb HD

compared with

intel celeron 2.16ghz
2gb ram
160gb HD

Its clear that the core duo has a big HD capacity, is there a big difference in the processor speed, one is core duo and the other celeron?