Better for what? Playing games? Drawing pictures? Writing essays? Which is better - a fork or a spoon?
Absolutely, Core2Duo rates higher than all you mentioned models due to performance and stability... Dual Core is second better choice is Dual Core last but not least Intel Atom. Atom is considered as most economical processor among Intel Processors
Just like what Kerosene said, better in term of what? Intel Atom is a low-powered processor with a single core. Its prime advantage is that it uses less power than the Core 2 Duo chip that will enhances battery life. It is normally found in Netbooks as well as small form factor desktops. A Core 2 Duo processor, has two processing cores for better performance, though it sucks up much more power than its Atom equivalent. For simulations and program intensive tasks I suggest you stick to go with a Core 2 Duo chip. - Dynashox -
Intel Core2Duo are the fastest processors. Atom Processors are small in size and designed for netbooks and small computing devices.
If you are looking to buy a home pc just for surfing, at a very cheap and affordable price... then Intel Atom processor would ideally fit your bill! Regards, RightMan
You hav not cleared for what purpose you need to use computer so it can not be said anything. If you wanna it for drawing then dual core will be best..
Rasbery Pie is the best PC for those who want to save money on electricity and just want to do basic computer stuff.