Product comparison · 2 internal solid state drives

Samsung PM1633 1.92 TB 2.5" SAS TLC vs Samsung PM953 480 GB 2.5" PCI Express TLC

8specifications compared
6differ
2identical
16known for one product only

Key differences

SSD capacity
- PM1633 1.92 TB 2.5" SAS TLC:1.92 TB
- PM953 480 GB 2.5" PCI Express TLC:480 GB
Interface
- PM1633 1.92 TB 2.5" SAS TLC:SAS
- PM953 480 GB 2.5" PCI Express TLC:PCI Express
Read speed
- PM1633 1.92 TB 2.5" SAS TLC:1350 MB/s
- PM953 480 GB 2.5" PCI Express TLC:1000 MB/s
Write speed
- PM1633 1.92 TB 2.5" SAS TLC:750 MB/s
- PM953 480 GB 2.5" PCI Express TLC:500 MB/s
Random read (4KB)
- PM1633 1.92 TB 2.5" SAS TLC:190000 IOPS
- PM953 480 GB 2.5" PCI Express TLC:240000 IOPS
Random write (4KB)
- PM1633 1.92 TB 2.5" SAS TLC:37000 IOPS
- PM953 480 GB 2.5" PCI Express TLC:16000 IOPS

Side by side

Differences highlightedShow differences only

Comparison of PM1633, PM953
24 specifications	A Samsung PM1633 1.92 TB 2.5" SAS TLC Model PM1633 View product	B Samsung PM953 480 GB 2.5" PCI Express TLC Model PM953 View product
Features6 differ
SSD capacityDiffers	1.92 TB	480 GB
InterfaceDiffers	SAS	PCI Express
Component forKnown for one	Server/workstation	Unknown — not stated by the source
Data transfer rateKnown for one	12 Gbit/s	Unknown — not stated by the source
Read speedDiffers	1350 MB/s	1000 MB/s
Write speedDiffers	750 MB/s	500 MB/s
Random read (4KB)Differs	190000 IOPS	240000 IOPS
Random write (4KB)Differs	37000 IOPS	16000 IOPS
S.M.A.R.T. supportKnown for one	Yes	Unknown — not stated by the source
Uncorrectable Bit Error Rate (UBER)Known for one	< 1 per 10^17 bits read	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	2000000 h	Unknown — not stated by the source
SSD usage tagKnown for one	Data center	Unknown — not stated by the source
PCI Express interface data lanesKnown for one	Unknown — not stated by the source	x4
Weight & dimensionsidentical
WidthKnown for one	70 mm	Unknown — not stated by the source
DepthKnown for one	100 mm	Unknown — not stated by the source
HeightKnown for one	15 mm	Unknown — not stated by the source
WeightKnown for one	140 g	Unknown — not stated by the source
Other featuresidentical
Product colourKnown for one	Black	Unknown — not stated by the source
NAND controllerKnown for one	V-NAND	Unknown — not stated by the source
SSD endurance ratingKnown for one	1 DWPD	Unknown — not stated by the source
Sequential read/writeKnown for one	Yes	Unknown — not stated by the source
InternalKnown for one	Unknown — not stated by the source	Yes

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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