All categories
Phones & WearablesView all 31

Departments

Phones & WearablesComputers & TabletsComponents & StorageNetworkingPrinting & OfficePower & ChargingTV, Audio & VideoGaming, Toys & RobotsKitchen AppliancesHome AppliancesPersonal Care & HealthSmart Home & SecurityCar & MobilityTools & GardenCameras & Photo

Shopping country

Browse

All categoriesCompare products

Product comparison · 2 servers

Dell PowerEdge R420 vs Dell PowerEdge R520

Add a product
  • 98specifications compared
  • 19differ
  • 79identical
  • 2known for one product only

Key differences

  • Processor model
    • E5-2403
    • E5-2407
  • Processor frequency
    • 1.8 GHz
    • 2.2 GHz
  • Number of processors installed
    • 1
    • 2
  • Processor code
    • SR0LS
    • SR0LR
  • Internal memory
    • 4 GB
    • 8 GB
  • Maximum storage capacity
    • 12 TB
    • 24 TB
  • Total storage capacity
    • 300 GB
    • 146 GB
  • HDD capacity
    • 300 GB
    • 146 GB

Side by side

Differences highlightedShow differences only
100 specifications
A

Dell

PowerEdge R420View product
B

Dell

PowerEdge R520View product
Processor4 differ
Processor manufacturerIntelIntel
Processor familyIntel® Xeon® E5 FamilyIntel® Xeon® E5 Family
Processor modelDiffersE5-2403E5-2407
Processor frequencyDiffers1.8 GHz2.2 GHz
Processor cores44
Processor cache10 MB10 MB
Motherboard chipsetIntel C600Intel C600
Memory channels supported by processorTripleTriple
Number of processors installedDiffers12
Thermal Design Power (TDP)80 W80 W
Processor cache typeSmart CacheSmart Cache
System bus rate6.4 GT/s6.4 GT/s
Bus typeQPIQPI
ECC supported by processorYesYes
Embedded options availableNoNo
Execute Disable BitYesYes
FSB ParityNoNo
Idle StatesYesYes
Maximum internal memory supported by processor375 GB375 GB
Maximum number of PCI Express lanes2424
Maximum number of SMP processors22
Memory bandwidth supported by processor (max)25 GB/s25 GB/s
Memory clock speeds supported by processor800,1066 MHz800,1066 MHz
Memory types supported by processorDDR3-SDRAMDDR3-SDRAM
Number of QPI links11
Processor codeDiffersSR0LSSR0LR
Processor codenameSandy Bridge ENSandy Bridge EN
Processor lithography32 nm32 nm
Processor operating modes64-bit64-bit
Processor package size45 x 42.5 mm45 x 42.5 mm
Processor seriesIntel Xeon E5-2400Intel Xeon E5-2400
Processor socketLGA 1356 (Socket B2)LGA 1356 (Socket B2)
Processor threads44
Scalability2S2S
SteppingM1M1
Supported instruction setsAVXAVX
Thermal Monitoring TechnologiesYesYes
Conflict-Free processorNoNo
Memory1 differ
Internal memoryDiffers4 GB8 GB
Internal memory typeDDR3-SDRAMDDR3-SDRAM
Maximum internal memory192 GB192 GB
Memory clock speed1333 MHz1333 MHz
Memory slots12x DIMM12x DIMM
Storage7 differ
Maximum storage capacityDiffers12 TB24 TB
Total storage capacityDiffers300 GB146 GB
Number of HDDs installed11
HDD capacityDiffers300 GB146 GB
HDD interfaceSerial Attached SCSI (SAS)Serial Attached SCSI (SAS)
HDD speed15000 RPM15000 RPM
HDD sizeDiffers3.5"2.5"
Number of HDDs supportedDiffers48
RAID supportYesYes
Hot-swapYesYes
Drive device, transfer rate6000 MB/s6000 MB/s
Internal drive baysDiffers48
Optical drive typeDiffersDVD-ROMDVD-RW
RAID levelsKnown for one1
Networkidentical
Ethernet LANNoNo
Expansion slots1 differ
PCI Express x8 slotsKnown for one1
PCI Express x16 slotsDiffers14
PCI Express slots version3.03.0
Design1 differ
Chassis typeDiffersRack (1U)Rack (2U)
Softwareidentical
Operating system installedNoNo
Compatible operating systemsWindows Server 2008 R2 SP1 Windows Small Business Server 2011 SUSE Linux Enterprise Server Red Hat Enterprise LinuxWindows Server 2008 R2 SP1 Windows Small Business Server 2011 SUSE Linux Enterprise Server Red Hat Enterprise Linux
Processor special features1 differ
CPU configuration (max)22
Enhanced Intel SpeedStep TechnologyYesYes
Intel 64YesYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingYesYes
Intel Dual Display Capable TechnologyNoNo
Intel Enhanced Halt StateYesYes
Intel FDI TechnologyNoNo
Intel Fast Memory AccessNoNo
Intel Flex Memory AccessNoNo
Intel Identity Protection Technology version0.000.00
Intel Rapid Storage TechnologyNoNo
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® Anti-Theft Technology (Intel® AT)NoNo
Intel® Clear Video HD Technology (Intel® CVT HD)NoNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)NoNo
Intel® Hyper Threading Technology (Intel® HT Technology)NoNo
Intel® Identity Protection Technology (Intel® IPT)NoNo
Intel® InTru™ 3D TechnologyNoNo
Intel® Insider™NoNo
Intel® My WiFi Technology (Intel® MWT)NoNo
Intel® Quick Sync Video TechnologyNoNo
Intel® Smart CacheYesYes
Intel® Turbo Boost TechnologyNoNo
Intel® Wireless Display (Intel® WiDi)NoNo
Processor ARK IDDiffers6461564614
Power3 differ
Redundant power supply (RPS) supportDiffersNoYes
Number of power supply unitsDiffers12
Power supplyDiffers550 W750 W
Packaging contentidentical
Cables includedACAC
Other features1 differ
Disk array controllerDiffersPERC H310PERC H710 512MB
Mac compatibilityNoNo

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.

More server comparisons

All server comparisons