RAM for my laptop i5.

Hello! i have a laptop , intel core i5 , i want to ask 2GB of RAM would be sufficient to run this properly. Here is all combination
Intel Core i5
2.30 Ghz CPU 430M
512MB ATi Mobility Radeon HD 5470 Graphics
Operating System: Windows 7 64Bit
2 GB RAM
Would you think this would be good combination.
Thanks?
