[G4] PowerMac G4/600 or Dual 500?

[Hal]

Ok, here's my quandry. I'm building a gigabit ethernet G4 tower. I  
got the tower for almost nothing, with a stock 400mHz G4 card and  
256MB of RAM. I had a processor card left over from an upgrade I did  
years back (OK, I actually found it in a box of stuff in my basement  
I'd forgotten about). It was sold as a 466mHz card in a digital audio  
tower, but it was actually marked 533mHz on the chip.

After removing a resistor or 2 to reclock the chip, it's running at  
600mHz and totally stable. Would I be better off sticking with this  
card (a 7410 running at 600mHz) or dropping in an Apple dual 500mHz  
(7400-based card), assuming I had access to both cards?

Everything I've read shows that the performance should be about the  
same, but I'm wondering if anyone has a perspective on this I'm not  
using this computer for high end gaming or anything. It's basically a  
print and file server, but I'd like to occasionally use it for a game  
of Unreal Tournament or to run Connectix VGS or maybe some Duke  
Nukem. :-)

Now, I just need some more RAM...

Any info is appreciated.

-Hal