Processor help

[Matthew.]

Hi,

Ok so I'm not that "up" on technology, i never hide that

Can anyone explain to me in simple terms what the difference, speed wise, there is between Intel Core 2 Duo and Core Duo?

Also what affect does the cache size have on the speed? Say a cache of 512kb and 2mb.

I realise processor is not the only thing that affects performance, but just a rough guide would be handy

Matt