XFX 5200 FX vs.Intel Extreme Graphics i845

[PN]

I’m a gamer on a budget and the XFX GeForce 5200 FX 256 MB
is the best card i can afford.

But looking at benchmark results on the net,my present Intel Extreme
Graphics integrated runs some games(Quake 3,Serous Sam 2) better than
the XFX 5200 FX.

So,
Can Anybody help me with this?

-PN