> From: Luke S Crawford [mailto:[email protected]] > > that thing supports 4 12 core opterons in 1u. 48 cores per U. and > something > like 6.6 watts per core, assuming the 80 watt ACP. if the atom is 4 > watts per > core, I bet you are getting more compute per watt out of those > opterons.
You seem to be in favor of AMD processors over Intel. While I'll agree the purchase cost is lower, I never trust the rated power spec of any systems, and I always measure the actual fully-loaded power consumption of any servers I buy. My lowest power server is a Dell R610 Intel, 4 cores, 8 threads, 16G ram, 180W/190VA. My highest power server is a Dell 2970 AMD, 4 cores, 4 threads, 8G ram, 320w/325VA. Maybe I'm just buying the wrong AMD chips or something, but every time I test it, I would estimate the AMD processors are 2-4x higher power consumption than Intel, for equivalent processing power. Whenever you have higher power consumption per compute... You have increased the cost of power & cooling for the life of the product, and also the cost of UPS's. In my datacenter, I only have 40A power available per rack, so whenever I build something that requires more, I have to pay for more racks & real estate. So the compute per joule is a huge factor for me. It's easily comparable to the purchase price of the equipment. _______________________________________________ Tech mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
