Product comparison · 2 internal solid state drives

Lenovo P4500 1 TB 2.5" U.2 NVMe vs Lenovo PM1635a 1.6 TB 3.5" SAS TLC

9specifications compared
6differ
3identical
29known for one product only

Key differences

SSD capacity
- P4500 1 TB 2.5" U.2 NVMe:1 TB
- PM1635a 1.6 TB 3.5" SAS TLC:1.6 TB
SSD form factor
- P4500 1 TB 2.5" U.2 NVMe:2.5"
- PM1635a 1.6 TB 3.5" SAS TLC:3.5"
Interface
- P4500 1 TB 2.5" U.2 NVMe:U.2
- PM1635a 1.6 TB 3.5" SAS TLC:SAS
Operating temperature (T-T)
- P4500 1 TB 2.5" U.2 NVMe:0 - 35 °C
- PM1635a 1.6 TB 3.5" SAS TLC:0 - 70 °C
Maximum operating altitude
- P4500 1 TB 2.5" U.2 NVMe:3048 m
- PM1635a 1.6 TB 3.5" SAS TLC:4572 m
Product colour
- P4500 1 TB 2.5" U.2 NVMe:Aluminium, White
- PM1635a 1.6 TB 3.5" SAS TLC:Black

Side by side

Differences highlightedShow differences only

Comparison of P4500, PM1635a
38 specifications	A Lenovo P4500 1 TB 2.5" U.2 NVMe Model P4500 View product	B Lenovo PM1635a 1.6 TB 3.5" SAS TLC Model PM1635a View product
Features3 differ
SSD capacityDiffers	1 TB	1.6 TB
SSD form factorDiffers	2.5"	3.5"
InterfaceDiffers	U.2	SAS
NVMeKnown for one	Yes	Unknown — not stated by the source
Component for	Server/workstation	Server/workstation
Random read (4KB)Known for one	279500 IOPS	Unknown — not stated by the source
Random write (4KB)Known for one	30500 IOPS	Unknown — not stated by the source
PCI Express interface data lanesKnown for one	x4	Unknown — not stated by the source
S.M.A.R.T. supportKnown for one	Yes	Unknown — not stated by the source
Hot-swapKnown for one	Yes	Unknown — not stated by the source
End-to-End Data ProtectionKnown for one	Yes	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	2000000 h	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Red Hat Enterprise Linux WS 6.0, Red Hat Enterprise Linux WS 7.0, SuSE Linux 11, SuSE Linux 12.0	Unknown — not stated by the source
Server operating systems supportedKnown for one	Windows Server 2012 R2, Windows Server 2016	Unknown — not stated by the source
Endurance rating (for 5 years)Known for one	0.75 GB/day	Unknown — not stated by the source
TBW ratingKnown for one	1.38	Unknown — not stated by the source
CertificationKnown for one	FCC Title 47, Part 15B, Class B CA/CSA-CEI/IEC CISPR 22:02 EN 55024: 1998 EN 55022: 2006 EN-60950-1 2nd Edition UL/CSA EN-60950-1 2nd Edition Low Voltage Directive 2006/95/EC C-Tick: AS/NZS3584 BSMI: CNS 13438 KCC Article 11.1 RoHS DIRECTIVE 2011/65/EU WEEE Directive 2002/96/EC	Unknown — not stated by the source
Memory typeKnown for one	Unknown — not stated by the source	TLC
NAND flash typeKnown for one	Unknown — not stated by the source	TLC (Triple Level Cell)
Data transfer rateKnown for one	Unknown — not stated by the source	12 Gbit/s
Read speedKnown for one	Unknown — not stated by the source	940 MB/s
Write speedKnown for one	Unknown — not stated by the source	800 MB/s
Poweridentical
Power consumption (read)Known for one	9.6 W	Unknown — not stated by the source
Power consumption (write)Known for one	11 W	Unknown — not stated by the source
Power consumption (average)Known for one	Unknown — not stated by the source	9 W
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	131 g	Unknown — not stated by the source
Operational conditions2 differ
Operating temperature (T-T)Differs	0 - 35 °C	0 - 70 °C
Operating relative humidity (H-H)	5 - 95%	5 - 95%
Operating vibrationKnown for one	2.17 G	Unknown — not stated by the source
Operating shockKnown for one	1000 G	Unknown — not stated by the source
Maximum operating altitudeDiffers	3048 m	4572 m
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 85 °C
Other features1 differ
Product colourDiffers	Aluminium, White	Black
Compliance certificates	RoHS	RoHS
Compatible productsKnown for one	ThinkSystem ST550, SR570, SR590, SR630, SR650, SR850, SR950, SD530, SN550, SN850	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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