[you_without_me]

Hey Guys,
I'm trying to decide what Macbook Pro to buy.

15.4-inch: 2.4GHz with:
NVIDIA GeForce 8600M GT with 256MB of GDDR3 memory and dual-link DVI

or
15.4-inch: 2.5GHz
NVIDIA GeForce 8600M GT with 512MB of GDDR3 SDRAM and dual-link DVI

Apart from the second one being more expensive can anyone please
tell me the main benefits of it?

Thanks!