that's a huge difference.
Will it improve with a vid card?
Prolly not, I've run this exact gf2 at the same OC settings on a p4 2.53 with a gig of DDR and hit 6000 points.
It's most likely NOT the card holding this back.
Would anyone be willing to sell or donate the following:
Pentium III - Coppermine FCPGA (256k)
700MHz until 1.13GHz