Product comparison · 2 internal solid state drives

Memblaze PBlaze7 7A40 Series vs Samsung 990 SSD PCIe

11specifications compared
9differ
2identical
22known for one product only

Key differences

The Memblaze PBlaze7 7A40 Series has 13 TB more SSD capacity than the Samsung 990 SSD PCIe (15 TB vs 2 TB). The Memblaze PBlaze7 7A40 Series has 2,500,000 IOPS more random read (4KB) than the Samsung 990 SSD PCIe (3350000 IOPS vs 850000 IOPS). The Samsung 990 SSD PCIe has 990,000 IOPS more random write (4KB) than the Memblaze PBlaze7 7A40 Series (1200000 IOPS vs 210000 IOPS). SSD form factor: U.2 on the Memblaze PBlaze7 7A40 Series, M.2 on the Samsung 990 SSD PCIe. Interface: PCI Express 5.0 on the Memblaze PBlaze7 7A40 Series, PCI Express 4.0 on the Samsung 990 SSD PCIe.

SSD capacity
- PBlaze7 7A40 Series:15 TB
- 990 SSD PCIe:2 TB
SSD form factor
- PBlaze7 7A40 Series:U.2
- 990 SSD PCIe:M.2
Interface
- PBlaze7 7A40 Series:PCI Express 5.0
- 990 SSD PCIe:PCI Express 4.0
Memory type
- PBlaze7 7A40 Series:QLC 3D NAND
- 990 SSD PCIe:V-NAND
Component for
- PBlaze7 7A40 Series:Server
- 990 SSD PCIe:PC
Random read (4KB)
- PBlaze7 7A40 Series:3350000 IOPS
- 990 SSD PCIe:850000 IOPS
Random write (4KB)
- PBlaze7 7A40 Series:210000 IOPS
- 990 SSD PCIe:1200000 IOPS
Mean time between failures (MTBF)
- PBlaze7 7A40 Series:2500000 h
- 990 SSD PCIe:1500000 h

Side by side

Differences highlightedShow differences only

Comparison of P7A40DT1536Y02, 990
33 specifications	A Memblaze PBlaze7 7A40 Series Model P7A40DT1536Y02 View product	B Samsung 990 SSD PCIe Model 990 View product
Features8 differ
SSD capacityDiffers	15 TB	2 TB
SSD form factorDiffers	U.2	M.2
InterfaceDiffers	PCI Express 5.0	PCI Express 4.0
NVMe	Yes	Yes
NVMe versionKnown for one	Unknown — not stated by the source	2.0
Memory typeDiffers	QLC 3D NAND	V-NAND
Component forDiffers	Server	PC
Hardware encryption	Yes	Yes
Security algorithmsKnown for one	Unknown — not stated by the source	256-bit AES, TCG Opal 2.0
M.2 SSD sizeKnown for one	Unknown — not stated by the source	2280 (22 x 80 mm)
Read speedKnown for one	Unknown — not stated by the source	7250 MB/s
Write speedKnown for one	Unknown — not stated by the source	6450 MB/s
Random read (4KB)Differs	3350000 IOPS	850000 IOPS
Random write (4KB)Differs	210000 IOPS	1200000 IOPS
PCI Express interface data lanesKnown for one	Unknown — not stated by the source	x4
DevSlp (device sleep) supportKnown for one	Unknown — not stated by the source	Yes
PCI Express CEM revisionKnown for one	Unknown — not stated by the source	4.0
S.M.A.R.T. supportKnown for one	Unknown — not stated by the source	Yes
TRIM supportKnown for one	Unknown — not stated by the source	Yes
Mean time between failures (MTBF)Differs	2500000 h	1500000 h
Poweridentical
Operating voltageKnown for one	Unknown — not stated by the source	3.3 V
Power consumption (read)Known for one	Unknown — not stated by the source	4.3 W
Power consumption (write)Known for one	Unknown — not stated by the source	3.8 W
Power consumption (idle)Known for one	Unknown — not stated by the source	0.055 W
Power consumption DevSlp (device sleep)Known for one	Unknown — not stated by the source	3 mW
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	80.2 mm
DepthKnown for one	Unknown — not stated by the source	2.38 mm
HeightKnown for one	Unknown — not stated by the source	22.1 mm
Packaging dataidentical
Package typeKnown for one	Unknown — not stated by the source	Box
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 77 °C	0 - 70 °C
Operating shockKnown for one	Unknown — not stated by the source	1500 G
Maximum operating temperatureKnown for one	77 °C	Unknown — not stated by the source
Minimum operating temperatureKnown for one	0 °C	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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