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Product comparison · 2 servers

Dell PowerEdge R640 server vs Dell PowerEdge R740 server

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  • 74specifications compared
  • 9differ
  • 65identical
  • 21known for one product only

Key differences

  • Number of processors installed
    • 1
    • 2
  • Memory clock speed
    • 2666 MHz
    • 2667 MHz
  • Maximum internal memory
    • 192 GB
    • 3 TB
  • USB 2.0 ports quantity
    • 1
    • 2
  • VGA (D-Sub) ports quantity
    • 1
    • 2
  • PCI Express x8 (Gen 3.x) slots
    • 3
    • 4
  • Chassis type
    • Rack (1U)
    • Rack (2U)
  • Depth
    • 705 mm
    • 715.5 mm

Side by side

Differences highlightedShow differences only
95 specifications
A

Dell

PowerEdge R640 server

Model R640

View product
B

Dell

PowerEdge R740 server

Model R740

View product
Processor1 differ
Processor manufacturerIntelIntel
Processor familyIntel Xeon SilverIntel Xeon Silver
Processor generation1st Generation Intel® Xeon® Scalable1st Generation Intel® Xeon® Scalable
Processor model41164116
Processor frequency2.1 GHz2.1 GHz
Processor boost frequency3 GHz3 GHz
Processor cores1212
Processor cache16.5 MB16.5 MB
Memory channels supported by processorHexaHexa
Number of processors installedDiffers12
Thermal Design Power (TDP)85 W85 W
Processor cache typeL3L3
Compatible processor seriesKnown for oneIntel® Xeon®
ECC supported by processorYesYes
Embedded options availableYesYes
Execute Disable BitYesYes
Maximum internal memory supported by processor768 GB768 GB
Maximum number of PCI Express lanes4848
Memory clock speeds supported by processor2400 MHz2400 MHz
Memory types supported by processorDDR4-SDRAMDDR4-SDRAM
Processor codeSR3HQSR3HQ
Processor codenameSkylakeSkylake
Processor lithography14 nm14 nm
Processor operating modes64-bit64-bit
Processor package size76.0 x 56.5 mm76.0 x 56.5 mm
Processor socketLGA 3647 (Socket P)LGA 3647 (Socket P)
Processor threads2424
Scalability2S2S
SteppingM0M0
Supported instruction setsAVX, AVX 2.0, AVX-512, SSE4.2AVX, AVX 2.0, AVX-512, SSE4.2
Tcase76 °C76 °C
Conflict-Free processorYesYes
Intelligent Platform Management Interface (IPMI) supportKnown for oneYes
Memory2 differ
Internal memory16 GB16 GB
Internal memory typeDDR4-SDRAMDDR4-SDRAM
Memory clock speedDiffers2666 MHz2667 MHz
Memory layout (slots x size)Known for one1 x 16 GB
Memory slots2424
Maximum internal memoryDiffers192 GB3 TB
ECCKnown for oneYes
Storageidentical
Maximum storage capacityKnown for one80 TB
Total storage capacity300 GB300 GB
Number of HDDs installed11
HDD capacity300 GB300 GB
HDD interfaceSerial Attached SCSI (SAS)Serial Attached SCSI (SAS)
HDD speedKnown for one10000 RPM
HDD size2.5"2.5"
Number of HDDs supportedKnown for one8
Supported HDD sizes2.5"2.5"
RAID supportYesYes
Hot-Plug supportYesYes
Hot-swapKnown for oneYes
Optical drive typeDVD±RWDVD±RW
Supported storage drive interfacesKnown for oneSerial ATA, Serial Attached SCSI
RAID levelsKnown for one0, 1, 5, 10
Internal drive baysKnown for one8
Networkidentical
Cabling technology10/100/1000Base-T(X)10/100/1000Base-T(X)
Ethernet LANYesYes
Ethernet interface typeKnown for oneGigabit Ethernet
LAN controllerBroadcom 5720Broadcom 5720
Ports & interfaces2 differ
Ethernet LAN (RJ-45) ports44
USB 2.0 ports quantityDiffers12
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity22
Serial ports quantity11
VGA (D-Sub) ports quantityDiffers12
Expansion slots1 differ
PCI Express x8 (Gen 3.x) slotsDiffers34
PCI Express slots version3.03.0
Design1 differ
Chassis typeDiffersRack (1U)Rack (2U)
Rack mountingYesYes
Rack railsYesYes
Performanceidentical
Remote administrationiDRAC9 EnterpriseiDRAC9 Enterprise
Trusted Platform Module (TPM)Known for oneYes
Trusted Platform Module (TPM) versionKnown for one1.2
Softwareidentical
Compatible operating systemsCanonical Ubuntu LTS Citrix XenServer Microsoft Windows Server with Hyper-V Red Hat Enterprise Linux SUSE Linux Enterprise Server VMware ESXiCanonical Ubuntu LTS Citrix XenServer Microsoft Windows Server with Hyper-V Red Hat Enterprise Linux SUSE Linux Enterprise Server VMware ESXi
Processor special featuresidentical
Enhanced Intel SpeedStep TechnologyYesYes
Intel 64YesYes
Intel TSX-NIYesYes
Intel TSX-NI version1.001.00
Intel Trusted Execution TechnologyYesYes
Intel VT-x with Extended Page Tables (EPT)YesYes
Intel Virtualization Technology (VT-x)YesYes
Intel Virtualization Technology for Directed I/O (VT-d)YesYes
Intel® AES New Instructions (Intel® AES-NI)YesYes
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Turbo Boost Technology2.02.0
Processor ARK ID120481120481
Intel Secure BootKnown for oneYes
Poweridentical
Redundant power supply (RPS) supportKnown for oneYes
Power supplyKnown for one495 W
Weight & dimensions1 differ
WidthKnown for one482 mm
DepthDiffers705 mm715.5 mm
HeightKnown for one76.8 mm
WeightKnown for one26.3 kg
Other features1 differ
Conflict-FreeKnown for oneYes
Dell E-Value CodeDiffersPER6402PER7403

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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