Product comparison · 2 internal solid state drives

Samsung 860 QVO vs Samsung PM981a 512 GB M.2 PCI Express 3.0 NVMe TLC

5specifications compared
4differ
1identical
30known for one product only

Key differences

SSD capacity
- 860 QVO:2 TB
- PM981a 512 GB M.2 PCI Express 3.0 NVMe TLC:512 GB
SSD form factor
- 860 QVO:2.5"
- PM981a 512 GB M.2 PCI Express 3.0 NVMe TLC:M.2
Interface
- 860 QVO:Serial ATA III
- PM981a 512 GB M.2 PCI Express 3.0 NVMe TLC:PCI Express 3.0
Memory type
- 860 QVO:MLC
- PM981a 512 GB M.2 PCI Express 3.0 NVMe TLC:TLC

Side by side

Differences highlightedShow differences only

Comparison of 860 QVO, PM981a
35 specifications	A Samsung 860 QVO View product	B Samsung PM981a 512 GB M.2 PCI Express 3.0 NVMe TLC Model PM981a View product
Features4 differ
SSD capacityDiffers	2 TB	512 GB
SSD form factorDiffers	2.5"	M.2
InterfaceDiffers	Serial ATA III	PCI Express 3.0
Memory typeDiffers	MLC	TLC
Component for	PC	PC
Security algorithmsKnown for one	256-bit AES	Unknown — not stated by the source
Data transfer rateKnown for one	6 Gbit/s	Unknown — not stated by the source
Read speedKnown for one	550 MB/s	Unknown — not stated by the source
Write speedKnown for one	520 MB/s	Unknown — not stated by the source
Random read (4KB)Known for one	97000 IOPS	Unknown — not stated by the source
Random write (4KB)Known for one	42000 IOPS	Unknown — not stated by the source
Controller typeKnown for one	Samsung MJX	Unknown — not stated by the source
DevSlp (device sleep) supportKnown for one	Yes	Unknown — not stated by the source
TRIM supportKnown for one	Yes	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	1500000 h	Unknown — not stated by the source
Protection featuresKnown for one	Shock resistant	Unknown — not stated by the source
Active garbage collectionKnown for one	Yes	Unknown — not stated by the source
TBW ratingKnown for one	720	Unknown — not stated by the source
NVMeKnown for one	Unknown — not stated by the source	Yes
Poweridentical
Power consumption (max)Known for one	4 W	Unknown — not stated by the source
Power consumption (average)Known for one	3 W	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	100 mm	Unknown — not stated by the source
DepthKnown for one	69.8 mm	Unknown — not stated by the source
HeightKnown for one	6.8 mm	Unknown — not stated by the source
WeightKnown for one	60 g	Unknown — not stated by the source
Packaging dataidentical
Package widthKnown for one	145 mm	Unknown — not stated by the source
Package depthKnown for one	100 mm	Unknown — not stated by the source
Package heightKnown for one	20 mm	Unknown — not stated by the source
Package weightKnown for one	89 g	Unknown — not stated by the source
Package typeKnown for one	Box	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 70 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 85 °C	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Other featuresidentical
Product colourKnown for one	Black	Unknown — not stated by the source
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84717070	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.

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