Product comparison · 2 raid controllers

Dell PERC H740P vs Dell PERC H840

8specifications compared
4differ
4identical
12known for one product only

Key differences

The Dell PERC H740P has 0.1 more PCI Express slots version than the Dell PERC H840 (3.1 vs 3.0). The Dell PERC H740P has 10.8 Gbit/s more data transfer rate than the Dell PERC H840 (12 Gbit/s vs 1.2 Gbit/s). The Dell PERC H840 has 223 more devices supported than the Dell PERC H740P (255 vs 32). Supported storage drive interfaces: SAS-3, Serial ATA III on the Dell PERC H740P, SAS on the Dell PERC H840.

Supported storage drive interfaces
- PERC H740P:SAS-3, Serial ATA III
- PERC H840:SAS
PCI Express slots version
- PERC H740P:3.1
- PERC H840:3.0
Data transfer rate
- PERC H740P:12 Gbit/s
- PERC H840:1.2 Gbit/s
Number of devices supported
- PERC H740P:32
- PERC H840:255

Side by side

Differences highlightedShow differences only

Comparison of PERC H740P, PERC H840
20 specifications	A Dell PERC H740P View product	B Dell PERC H840 View product
Ports & interfaces2 differ
Supported storage drive interfacesDiffers	SAS-3, Serial ATA III	SAS
PCI Express slots versionDiffers	3.1	3.0
Internal mini-SAS portsKnown for one	Unknown — not stated by the source	2
Performance2 differ
Data transfer rateDiffers	12 Gbit/s	1.2 Gbit/s
Number of devices supportedDiffers	32	255
Compatible productsKnown for one	Unknown — not stated by the source	- PowerEdge R7415 - PowerEdge R640 - PowerEdge R740 - PowerEdge R840 - PowerEdge R440 - PowerEdge T640 - PowerEdge R540 - PowerEdge T440 - PowerVault NX3240 - PowerEdge R740xd2 - PowerEdge R740XD - PowerEdge R940 - PowerEdge R7425 - PowerEdge R940xa
Channels quantityKnown for one	8 channels	Unknown — not stated by the source
Processoridentical
Built-in processorKnown for one	Unknown — not stated by the source	Yes
Processor familyKnown for one	Unknown — not stated by the source	LSI
System requirementsidentical
Server operating systems supportedKnown for one	Unknown — not stated by the source	Windows Server 2012, Windows Server 2016
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Compatible operating systemsKnown for one	Microsoft Windows Server 2012, Red Hat Enterprise Linux 6.5, SuSE Linux Enterprise Server 12, Microsoft Windows Server 2016, Red Hat Enterprise Linux 7.0 or later	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	167.6 mm
DepthKnown for one	Unknown — not stated by the source	64.4 mm
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84733080
Other featuresidentical
Dell E-Value CodeKnown for one	Unknown — not stated by the source	405-AAMZ

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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