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Product comparison · 2 internal solid state drives

Samsung 845DC Pro vs Samsung 850 EVO

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  • 22specifications compared
  • 12differ
  • 10identical
  • 18known for one product only

Key differences

  • SSD capacity
    • 400 GB
    • 120 GB
  • Read speed
    • 530 MB/s
    • 540 MB/s
  • Write speed
    • 460 MB/s
    • 520 MB/s
  • Random read (4KB)
    • 92000 IOPS
    • 94000 IOPS
  • Random write (4KB)
    • 50000 IOPS
    • 36000 IOPS
  • Storage drive buffer size
    • 512 MB
    • 256 MB
  • Mean time between failures (MTBF)
    • 2000000 h
    • 1500000 h
  • Power consumption (read)
    • 1.7 W
    • 0.1 W

Side by side

Differences highlightedShow differences only
40 specifications
A

Samsung

845DC ProView product
B

Samsung

850 EVOView product
Features7 differ
SSD capacityDiffers400 GB120 GB
SSD form factor2.5"2.5"
InterfaceSerial ATA IIISerial ATA III
Memory typeMLCMLC
Data transfer rate6 Gbit/s6 Gbit/s
Read speedDiffers530 MB/s540 MB/s
Write speedDiffers460 MB/s520 MB/s
Random read (4KB)Differs92000 IOPS94000 IOPS
Random write (4KB)Differs50000 IOPS36000 IOPS
Read latencyKnown for one110 µs
Write latencyKnown for one50 µs
Storage drive buffer sizeDiffers512 MB256 MB
Controller typeKnown for oneSamsung MDX
RAID supportKnown for oneYes
ECCKnown for oneYes
End-to-End Data ProtectionKnown for oneYes
Native Command Queuing (NCQ)Known for oneYes
Mean time between failures (MTBF)Differs2000000 h1500000 h
CertificationKnown for oneCE, BSMI, KCC, VCCI, C-tick, FCC, IC, UL, TUV, CB
Security algorithmsKnown for one256-bit AES
S.M.A.R.T. supportKnown for oneYes
TRIM supportKnown for oneYes
Windows operating systems supportedKnown for oneYes
Power3 differ
Power consumption (read)Differs1.7 W0.1 W
Power consumption (write)Differs3.1 W0.1 W
Power consumption (idle)Differs1 W0.045 W
Weight & dimensions1 differ
Width69.8 mm69.8 mm
DepthDiffers100.2 mm100 mm
Height6.8 mm6.8 mm
WeightKnown for one65 g
Operational conditionsidentical
Operating temperature (T-T)0 - 70 °C0 - 70 °C
Storage temperature (T-T)-40 - 85 °C-40 - 85 °C
Operating relative humidity (H-H)5 - 95%5 - 95%
Storage relative humidity (H-H)Known for one5 - 95%
Non-operating vibrationKnown for one20 G
Operating shockKnown for one1500 G
Non-operating shockKnown for one1500 G
Other features1 differ
Product colourBlackBlack
InternalDiffersNoYes
Compliance certificatesKnown for oneRoHS

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.

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