Source: dxgaming.com
Dxgaming.com has measured the power consumption of several consoles including the xbox 360.
At standby mode the Ps2 console draws only 0.2 watts,
while the xbox 360 draws 2 watts.
During gaming the xbox 360 consumes 165 watts while the Ps1 consumes only 6 watts followed by the gamecube at 21 watts .
The Ps2 and the Xbox console draw 30 and 70 watts respectively.
(PS2 was tested without HDD)
More on that here
DX Gaming » Game Console Energy Consumption
Dxgaming.com has measured the power consumption of several consoles including the xbox 360.
At standby mode the Ps2 console draws only 0.2 watts,
while the xbox 360 draws 2 watts.
During gaming the xbox 360 consumes 165 watts while the Ps1 consumes only 6 watts followed by the gamecube at 21 watts .
The Ps2 and the Xbox console draw 30 and 70 watts respectively.
(PS2 was tested without HDD)
More on that here
DX Gaming » Game Console Energy Consumption