Idle power usage G34

[Essence_of_War]

kinda oldish question, but how is the idle power consumption for socket g34 opterons, like say the 6320 series? I am planning to build a server in the next few months and I was thinking of going with the asus motherboard that supports libreboot on socket g34, because free as in freedom or something

 

[LTC8K6]

Some info here:

http://www.cpu-world.com/info/AMD/AMD_Opteron_6300_series.html