A normal 4 socket Intel Xeon machine and/or AMD Opteron machine (a 20,000$) server usually have ~40+ cores and anywhere between 128GB and 1TB (!) of memory, and I'm not talking about a 100+K$ mainframe machine like the IBM Power series.
Originally Posted by wizard69
Plus, keep in mind that as you increase the amount of memory (I've got a number of machines with 512GB RAM), the power saving should increase (at least in theory).
DEV: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB, GTX780, F20/x86_64, Dell U2711.
SRV: Intel S5520SC, 2xX5680, 36GB, 4x2TB, GTX550, F20/x86_64, Dell U2412..
BACK: Tyan Tempest i5400XT, 2xE5335, 8GB, 3x1.5TB, 9800GTX, F20/x86-64.
LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F20/x86_64.