12 1.8G+ p4's

[CyberWire]

Anyone know what the projected output of about 22Ghz of P4's running winxppro service install would be? (hint hint)

[dmbrubac]

My experience with P4's with DDR and somewhat aggressive memory timings is that they do about 100x their speed in Ghz, measured in cEMs/sec, therefore

12 * 1.8 * 100 = 2.11M

My guess is your P4's will do about 1.9M. You are quite welcome to join the Geomatica team to repay your undying gratitude for my answer!

[CyberWire]

sorry.. already a member of team anandtech in many projects

[rstarr]

With 3 older machines I'm currently doing around 1.1. So......I think those machines will do more than that.

[CyberWire]

With all the assimilating I've done recently I'm approaching the 6M barrier

[Lagardo]

In my experience, memory speed counts. Thus the question becomes what kind of memory you're using and at what FSB.

Just the last week I replaced the memory on an Athlon-1.2 (PC133 instead of PC100 -- the MoBo didn't do DDR yet) which changed it from 12x100 to 9x133 and went from 160kcem/s to over 195kcem/sec.

Thus if your P4's happen to run RDRAM (ideally RD1033 they could be blazing along. If they run with PC100, I wouldn't expect too much out of them. Or if its anything in between... well, you'd get something in between.