ti4200 to a 5950 ultra only 750 more points in 3dm2001?

Hey, I was getting 14000 points even in 3dmark 2001 with my system and a geforce4 ti 4200 that was volt modded and OC'd to 320 core and same for memory. Now, I am running a 5900xt flashed to a 5950 ultra and running at 480 core and 495 for memory. I have only gained 750 points from the move! I have newest drivers. Also, I am running nvidia stock drivers, newest ones, because they allow me to overclock the card. With the ti4200 I was running omegas because the stock drivers wouldn't let me overclock the card. The rest of my system is as follows: 2x256MB 2-2-2-5 at 200Mhz, duron at 2.2Ghz, dfi ultra infinity. I can't figure out how this can be! Plz tell me if I am missing something or what the problem is.

very Easy the ti 4200's were the one of the best Dx8 cards , some bomb scores on mark2001 run 03 or 05 and see the differnce with dx9

2.2GHz duron? no wonder bro, you are badly cpu limited! I score over 19k on my ti4200 with my newcastle, gonna break 20k with winchester. you need to upgrade to a 2600+ moble barton at MINIMUM if you wanna keep your mobo. Then I can see you getting like 18k with your fx5900