Assume high-end gaming. Money is always an object, but this isn't a
"budget" system. Add to the requirements, "Intel chipset". I'm asking
this question for someone else. The thinking was P4C800E-deluxe, but I
want to know if there's a better choice. Also, it must support socket
478 and it must support, for now, a 533 MHz FSB (an existing CPU is
being used, for the time being, although it may be replaced later).
Have you considered a DUAL CPU board? While the second CPU does not
benefit many games, it does allow the OS to off-load many tasks that are
running in the background while playing games, and that does make the
system faster.
I was running a Dual Celeron 500Mhz system for a long time playing
Counter Strike at 90FPS with a quality video card under Windows 2000.
For my own game machine I use a ASUS PC-DL Deluxe motherboard with Dual
Xeon 2.8ghz CPU's and Windows XP Professional - I have a 9200SE video
card and get about 90FPS all the time when playing CS (it's the only
game I play on-line).
I also use the same machine for designing networks, web sites,
applications, and even run MS SQL 2000 on it.
If games are your only consideration, there are a lot of things other
than the motherboard you need to consider - like the Video Card and how
it interacts with the specific games you play. Not all cards perform as
well with different games.