Confused on Laptop Processors

[Brum Man]

I'm just trying to compare some laptop processors but am just getting a bit confused over the different ones. First, one make describes the processor as 'Intel Core 2 Duo', where as one calls it the 'Intel Pentium Dual Core Processor'. now I haven't looked at CPU's in ages so are these the same but just denoted differently?

Secondly, I am then trying to compare a T2080 vs T5450, now logic would have it that the T5450 would be better? But the 1st has a higher clock speed but lower FSB so which is better? Or as linked to be called differenly above are they from two different ranges?

 

[Brum Man]

So to put it short, despite the T2080 having a slightly higher clock speed they are not as good as the T5450 in terms of cache and being 64 bit?

 

[Brum Man]

Cheers for that. I got confused with the Core Duo and Core 2 Duo, I was assuming that they were the same thing but just put in a different way by the generic computer shops that know nothing!