I finally went to the hardware store and bought a power outlet meter to get the power consumption sussed out with these Xeons.
Currently running a GTX650, 4GB of DDR2 and standard hard drive.
Power was measured for the tower only.
These are my results:
Power consumption for E5450 SLBBM at 3.0GHz:
Idle = 57 watts
Cinebench = 113 watts
IntelBurnTest = 157 watts
Power consumption for L5420 SLBBR at 2.5GHz:
Idle = 58 watts
Cinebench = 95 watts
IntelBurnTest = 124 watts
So the power consumption seems to favor the L5420, but clock-for-clock (E5450 is 20% faster) there's no significant difference in efficiency.
My guess is that the higher thermals of the L5420 is from the use of inferior solder due to the cheap price tag when new. Maybe.
Currently running a GTX650, 4GB of DDR2 and standard hard drive.
Power was measured for the tower only.
These are my results:
Power consumption for E5450 SLBBM at 3.0GHz:
Idle = 57 watts
Cinebench = 113 watts
IntelBurnTest = 157 watts
Power consumption for L5420 SLBBR at 2.5GHz:
Idle = 58 watts
Cinebench = 95 watts
IntelBurnTest = 124 watts
So the power consumption seems to favor the L5420, but clock-for-clock (E5450 is 20% faster) there's no significant difference in efficiency.
My guess is that the higher thermals of the L5420 is from the use of inferior solder due to the cheap price tag when new. Maybe.