Western Digital Scorpio Black 320 GB 7200rpm

o

Samsung Spinpoint M6 HM500LI 500 GB 5400rpm


A occhio non dovrebbero essere tanto differenti in termini di consumo-

20 dollari di differenza.

Il Samsung 0.2 decibel più rumoroso.




Vi metto le specifiche complete, che magari mi sfugge qualcosa.


WD:

Performance Specifications
Rotational Speed 7,200 RPM (nominal)
Buffer Size 16 MB
Average Latency 5.50 ms (nominal)

Seek Times
Read Seek Time 12.0 ms
Track-To-Track Seek Time 2.0 ms (average)

Transfer Rates
Buffer To Host (Serial ATA) 3 Gb/s (Max)


Physical Specifications
Formatted Capacity 320,072 MB
Capacity 320 GB
Interface SATA 3 Gb/s


Physical Dimensions
English
Height 0.374 Inches
Length 3.94 Inches
Width 2.75 inches
Weight 0.22 Pounds

Metric
Height 9.5 mm
Length 100 mm
Width 69.85 mm
Weight 99 gm


Environmental Specifications
Acoustics
Idle Mode 22 dBA (average)
Seek Mode 0 25 dBA (average)

Temperature (English)
Operating 32° F to 140° F
Non-operating -40° F to 158° F

Temperature (Metric)
Operating -0° C to 60° C
Non-operating -40° C to 70° C

Humidity
Operating 8% to 95% Non-condensing
Non-operating 5-95% RH non-condensing

Altitude (English)
Operating -1,000 feet to 10,000 feet
Non-operating -1,000 feet to 40,000 feet

Altitude (Metric)
Operating -305M to 3,050M
Non-operating -305M to 12,200M

Vibration
Operating 0.00459 g²/Hz (10 to 500 Hz)
Non-operating 0.05102 g²/Hz (10 to 500 Hz)


Electrical Specifications
Current Requirements
5 VDC
Read/Write 500 mA
Idle 400 mA
Standby 50 mA
Sleep 30 mA

Power Dissipation
Read/Write 2.50 Watts
Idle 0.85 Watts
Standby 0.25 Watts
Sleep 0.15 Watts



Samsung:

Drive Configurations
Capacity * 500GB
Interface SATA 3.0Gbps
Buffer DRAM Size 8 MB
Byte per Sector 512
Rotational Speed 5,400 RPM
Performance Specifications
Average Seek time(typical) 12 ms
Average Latency 5.6 ms
Data Transfer Rate / Media to/from Buffer(Max.) 860 Mbits/s
Data Transfer Rate / Buffer to/from Host(Max.) 300MB/s
Drive Ready Time(typical) 5 sec
Reliability Specifications
Non-recoverable Read Error 1 sector in 1014 bits
Controlled Ramp Load/Unload 600,000
Acoustics
Idle 2.5 Bel
Performance Seek 2.7 Bel
Environmental Specifications
Temperature / Operating 5 ~ 55 ℃
Temperature / Non-operating -40 ~ 70 ℃
Humidity(non-condensing) / Operating 5 ~ 90 %
Humidity(non-condensing) / Non-operating 5 ~ 95 %
Liner Shock(1/2 sine pulse) / Operating 325 G
Liner Shock(1/2 sine pulse) / Non-operating 900 G
Vibration / Operating 0.76Grms
Altitude(relative to sea level) / Operating -300 to 3000 m
Altitude(relative to sea level) / Non-operating -400 to 15000 m
Power Requirenents
Voltage +5V±5%
Spin-up Current(Max.) 1000 mA
Seek(typical) 2.6 W
Read/Write(typical) 2.4 W
Low Power Idle(typical) 0.7 W
Standby(typical) 0.25 W
Sleep(typical) 0.2 W
Physical Dimension
Height (Max.) 9.5 mm
Width 69.85 mm
Length 100 mm
Weight(avg.) 115 g






Se riuscite a darmi na risposta in tempi brevi vi ringrazio, dovrei far piazzare l'ordine a minuti xD

EDIT: da montare su un MacBook 1st gen. Non son neanche sicuro se un disco da 7200 ci girerebbe a 7200 o verrebbe forzato a 5400, ma non mi dispiacerebbe comunque poter risparmiare in termini di batteria