On Wed, 2004-08-18 at 11:18, Raoul Buzziol wrote: > > You're not going to be able to get a Dual Athlon MP for the same price > > as a single Xeon. A few years back, this was the case because Xeon CPUs > > & MBs had a huge premium over Athlon. This is no longer true mainly > > because the number of people carrying Athlon MP motherboards has dropped > > down drastically. Go to pricewatch.com and do a search for 760MPX -- you > > get a mere 8 entries. Not surprisingly because who would not want to > > spend a few pennies more for a much superior Dual Opteron? The few > > sellers you see now just keep stuff in inventory for people who need > > replacement parts for emergencies and are willing to pay up the nose > > because it is an emergency. > > I saw pricewatch.com and you're right. > > I looked for some benchmarks, and I would know if I'm right on: > - Dual Opteron 246 have aproximately the same performance of a Dual Xeon 3Gh > (Opteron a little better) > - Opteron system equal or cheeper than Xeon system.
For PostgreSQL, Opteron might be a touch worse than Xeon for single processor, little better for Dual, and a whole heck of a bunch better for Quads -- but this depends on your specific work load as memory bound, cpu bound, lots of float math, etc. work loads will perform differently. In general, an Opteron is a better bet simply because you can shove more ram onto it (without workarounds), and you can't beat an extra 8GB ram on an IO bound database (consider your datasize in 1 year). ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])