i need an opinion on this GPU specs.
That is an HD 4850. It is a decent mid-ranged card, comparable to the nVidia GTS 250, and should be able to run almost any current game at high settings, when run at lower resolutions. Is that what you are looking for? I was not really sure by your question.
it's what i have.
problem is that while performaning in latest game or even 08 games it displays extremely low fps even on low settings...
What are the rest of your system specs? I suggest making new thread with a title descriptive of your problem in the PC Gaming and Consoles forum.