Old PC video

[stump]

I have a video card question. I am updating a very old-school computer so that it will run old-school pc games, like Insane & Need for Speed High Stakes. I have three other computers, some old, some new & I play them networked with my kids. Looove these games!

Here is my question. I acquired an old Compaq Presario 5441 475 mhz for free, so I figured I'd use it for these old games. I nearly maxed out the memory at 320 MB, and it had onboard video, so I got a cheap video card, an ATI Radeon 7000 PCI, which has 64MB of of memory. There is no AGP slot in this dinosaur. The problem is that it doesn't play 3D games worth a darn. The video is severely choppy, so bad it is unplayable, even if I lower the graphic settings in the game. I have a different dinosaur, an NEC 350mhz with a 16MB 3dfx voodoo3 that plays NFS HS & Insane like a charm, so I thought it would work well with this pc as well.

Does anyone out there know if the computer is just too old, or is this a crappy card that needs to be returned, or is it the PCI slot just too slow? I have Winxp & win 98 on the Compaq & there is no difference in video quality between the two.

Any input would be greatly appreciated.

[glc]

It's a combination of things - and the fact that it uses an AMD K6 processor doesn't help. Those Presarios were garbage. I'd retire it to word processing use and try to find an old Pentium-3 computer or something.