Samsung EcoGreen HM500JJ internal hard drive vs Samsung EcoGreen HM640JJ internal hard drive

Comparison of HM500JJ, HM640JJ

31 specifications	A Samsung EcoGreen HM500JJ internal hard drive Model HM500JJ View product	B Samsung EcoGreen HM640JJ internal hard drive Model HM640JJ View product
Features1 differ
HDD capacityDiffers	500 GB	640 GB
Poweridentical
Power consumption (standby)Known for one	0.2 W	—Unknown — not stated by the source
Power consumption (idle)Known for one	0.85 W	—Unknown — not stated by the source
Power consumption (read)Known for one	2.5 W	—Unknown — not stated by the source
Power consumption (write)Known for one	2.5 W	—Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.