I hate (love) to point this out, but FSAA on a Voodoo 5 5500 is SLOW in extremis. In fact even without FSAA, the card is still slow compared to a GeForce2. But, since you're asking if your rig is powerful enough, I'd have to say probably yes and I'd be very interested to see what kind of 3dMark score you get with it.

My Dual PIII 800 with a Voodoo5 5500 running Quake 2 @ 800x600 pulls 128 FPS with FSAAx2. It pulls 66 FPS with FSAAx4 while burning a CD, typing this in IE and running the RC5 client in the background. I wopuld say that you could most likely run the Voodoo5 at FSAAx4 with your machine but it will depend on the game. My tests of the card seem to indicate what I have read elsewhere: The framerate at FSAAx2 is about 1/3 less than no FSAA and FSAAx4 is about 1/2 of FSAAx2.
 
Ed

As far as 3DMark goes:
 
Fastest = 4287
FSAAx2 = 3236
FSAAx4 = 1711
 
Dual PIII @ 800
Voodoo5 5500
Win2k Beta1 drivers
 
Ed

I'm jealous of anyone who has a DUAL PIII-800 system.
 
 
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ABit BX6 (qq BIOS - ACPI enabled)C300A @ 450MHz128MB PC100 RAMCreative Labs 3D Blaster TNT2 UltraCreative Labs SBLive! ValueMacronix MX98715 Ethernet AdapterActionTec Internal 56k PCI ModemIBM 6.4 GB Hard DriveFujitsu 17.3 GB Hard DriveSamsung SCR-3231 CD-ROM DriveWin2kPro (SP-1)Win98SE