For the two rude Intel fanboys "cjl" and "isisarmu", here's the math:
Two-socket 16 core Opteron system with 32 GByte RAM:
Tyan S8230 ... $460 (source: Froogle)
two Opteron 6128 ... $266 x 2 = $532 (source: AMD)
sixteen 2GByte DDR3 ECC DIMMs ... $60 x 16 = $1000 (source: Froogle)
case, P/S, HD ... $400 (estim.)
Grand total ... $2400 for a 16 core, 32 GByte server ($150 per core)
Two-socket 16 core Intel "Beckton" system with 32 GByte RAM:
motherboard ... $478 (assumed price, not available yet)
two Xeon E6550 ... $2461 x 2 = $4922 (source: Intel)
sixteen 2GByte DDR3 ECC DIMMs ... $60 x 16 = $1000 (source: Froogle)
case, P/S, HD ... $400 (estim.)
Grand total ... $6800 for a 16 core server, more than $400 per core
Again, nobody doubts that the "Beckton" system will be faster.
But, hey, $2400 vs. $6800 is a heck of a price difference.