Takhle nejak vypada spotreba napr. 60GB Hitachi Travelstar 5K80 (5400rpm)
Kód:
Requirement +5VDC(±5%) 
Dissipation (typical)   
Startup (max. peak) 5. W 
Seek (average) 2.6 W 
Read (average) 2.5 W 
Write (average) 2.5 W 
Performance idle (average) 2.0 W 
Active idle (average) 1.3 W 
Low power idle (average) 0.85 W 
Standby (average) 0.25 W 
Sleep 0.1 W 
Power consumption efficiency (watts/GB) 0.011/0.014/0.024/0.043

A takhle napr.
Seagate Momentus 5400.3

Kód:
Startup Current 5v (amps max)  
Power Mgmt (watts)
Seek                    2W
Read/Write            2W/1,8W
Idle/Standby         0.8W/0.2W
Rozdily mezi disky ve spotrebe jsou, ale jestli jsou dost velke na to, aby sis podle nich vybiral konkretni model..to je na tobe, ja osobne bych to pri porovnani soucasnych disku snad ani neuvazoval...