Hello there. I'm planning to buy this laptop but I kept wondering if it is worth it. I'm not really /pro with computers, so don't be so rude

Will it be able to run Grand Theft Auto IV on low, medium or high settings? I hope it supports gaming.
Here are the specifications.
Intel Core i7 Processor
640GB Hard disk
4GB DDR3 RAM
NVIDIA GeForce GT 540M with NVIDIA Optimus Technology ( 1GB of dedicated DDR3 VRAM )
6-Cell Li-lon Battery
Thanks in advance.