Guild Wars 2

So for example if I bought that model desktop and one of the Graphics cards you recommended with it, should that boost my performance and enable me to play higher end settings, thanks for all the help by the way people, much appreciated

Well I’ve had this desktop for at least 4 years so its about time I’m due a new upgrade,
I’ve been looking around and have seen a few models which were reasonably priced but have recently come across this and possibly getting a more up to date graphics card to go with it?

ASUS CM6330 desktop -

Memory (RAM): 8 GB
Storage (hard drive): 1 Tb
Processor Name: Intel Core i7
Number of Cores: Quad
Operating System: Windows 7 Home Premium 64 bit

However I have noticed on this model that it has shared graphics which I dont think is recommended for mmo gaming?

Just started playing Guild Wars 2 today and have experienced quite a bit of lag and low fps issues, I have had similar issues with several other games that I have been playing previously and just wanted some advice on where my specs are possibly going wrong or whether I should upgrade from my current desktop computer to a better one, here are my current specs:

Intel® Core™ 2 Duo CPU @ 2.20 Ghz
3GB Memory Ram
32 Bit operating system
Windows Vista
Graphics Card – ATI Radeon HD 4600

Thankyou