Difference

[James!]

Whats the difference between a Macbook Pro 15 " and a 13 " Macbook Aliminum other than the size?

[Barmi]

Whats the difference between a Macbook Pro 15 " and a 13 " Macbook Aliminum other than the size?

http://www.apple.com/uk/macbook/specs.html
and
http://www.apple.com/uk/macbookpro/specs.html

Please don't make me type the differences in specification out to you.

[James!]

http://www.apple.com/uk/macbook/specs.html
and
http://www.apple.com/uk/macbookpro/specs.html

Please don't make me type the differences in specification out to you.

Would there be much difference in 2.0ghz and 2.4ghz?

[Barmi]

Would there be much difference in 2.0ghz and 2.4ghz?

If you intend to use everything the processors have to give, then yes. There should be a noticeable difference otherwise, else one option would be offered.

[James!]

Could you tell me what GHz actually does?

[:job2]

Its processor cycles, so obviously the higher number on Hz (or GHz) the faster your processor can handle requests such an running operating systems, opening applications etc. This and RAM (random access memory) together are what keep your computer doing what u want it to do, if you have an amazing processor but hardly any RAM or a crappy processor with loads of RAM the computer wont be as fast

[James!]

Would my Macbook run smoothly with 2.0Ghz and 4GB Ram

[Barmi]

Would my Macbook run smoothly with 2.0Ghz and 4GB Ram

Of course it will, but it's all relative. If you plan on using lots and lots of processor-intensive applications at once, your computer will not be as responsive as one with a faster processor... but you probably wouldn't notice the difference.

NB: Large processor numbers aren't necessarily everything. For example, my MacBook, which is over a year and a half old, has a 2.16 GHz Intel Core 2 Duo processor with a 4 MB L2 cache, but a 667 MHz bus speed. The new MacBook has a 2.0 GHz processor (lower model) with a 3 MB L2 cache, and a 1066 MHz frontside bus.