Product comparison · 2 internal solid state drives

Samsung 870 EVO vs Samsung PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC

10specifications compared
10differ
0identical
26known for one product only

Key differences

The Samsung 870 EVO has 7 TB more SSD capacity than the Samsung PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC (8 TB vs 1 TB). The Samsung PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC has 6,440 MB/s more read speed than the Samsung 870 EVO (7000 MB/s vs 560 MB/s). The Samsung PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC has 4,570 MB/s more write speed than the Samsung 870 EVO (5100 MB/s vs 530 MB/s). Only the Samsung PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC has NVMe. SSD form factor: 2.5" on the Samsung 870 EVO, M.2 on the Samsung PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC.

SSD capacity
- 870 EVO:8 TB
- PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC:1 TB
SSD form factor
- 870 EVO:2.5"
- PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC:M.2
Interface
- 870 EVO:Serial ATA III
- PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC:PCI Express 4.0
NVMe
- 870 EVO:No
- PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC:Yes
Memory type
- 870 EVO:V-NAND TLC
- PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC:TLC
Component for
- 870 EVO:PC
- PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC:Laptop
Read speed
- 870 EVO:560 MB/s
- PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC:7000 MB/s
Write speed
- 870 EVO:530 MB/s
- PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC:5100 MB/s

Side by side

Differences highlightedShow differences only

Comparison of 870 EVO, PM9A1
36 specifications	A Samsung 870 EVO View product	B Samsung PM9A1 1 TB M.2 PCI Express 4.0 NVMe TLC Model PM9A1 View product
Features10 differ
SSD capacityDiffers	8 TB	1 TB
SSD form factorDiffers	2.5"	M.2
InterfaceDiffers	Serial ATA III	PCI Express 4.0
NVMeDiffers	No	Yes
Memory typeDiffers	V-NAND TLC	TLC
Component forDiffers	PC	Laptop
Hardware encryptionKnown for one	Yes	Unknown — not stated by the source
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 speedDiffers	560 MB/s	7000 MB/s
Write speedDiffers	530 MB/s	5100 MB/s
Random read (4KB)Differs	98000 IOPS	1000000 IOPS
Random write (4KB)Differs	88000 IOPS	850000 IOPS
DevSlp (device sleep) supportKnown for one	Yes	Unknown — not stated by the source
S.M.A.R.T. 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
Windows operating systems supportedKnown for one	Windows 10, Windows 10 x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows Vista	Unknown — not stated by the source
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Server operating systems supportedKnown for one	Windows Server 2003, Windows Server 2003 x64	Unknown — not stated by the source
TBW ratingKnown for one	1200	Unknown — not stated by the source
Poweridentical
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Power consumption (read)Known for one	2.2 W	Unknown — not stated by the source
Power consumption (write)Known for one	2.6 W	Unknown — not stated by the source
Power consumption (max)Known for one	4.5 W	Unknown — not stated by the source
Power consumption (average)Known for one	2.5 W	Unknown — not stated by the source
Power consumption (idle)Known for one	0.04 W	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	100.1 mm	Unknown — not stated by the source
DepthKnown for one	6.9 mm	Unknown — not stated by the source
HeightKnown for one	69.9 mm	Unknown — not stated by the source
WeightKnown for one	86.2 g	Unknown — not stated by the source
Packaging dataidentical
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
Operating shockKnown for one	1500 G	Unknown — not stated by the source
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84717070

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.

More internal solid state drive comparisons

All internal solid state drive comparisons