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Product comparison · 2 pcs/workstations

Alienware AAR4-1428BK vs Alienware X51 Intel® Core™ i7 i7-2600

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  • 114specifications compared
  • 42differ
  • 72identical
  • 33known for one product only

Key differences

  • Processor family
    • Intel® Core™ i7 X-series
    • Intel® Core™ i7
  • Processor generation
    • 3rd gen Intel® Core™ i7
    • 2nd gen Intel® Core™ i7
  • Processor model
    • i7-3820
    • i7-2600
  • Processor frequency
    • 3.6 GHz
    • 3.4 GHz
  • Processor cache
    • 10 MB
    • 8 MB
  • Processor codename
    • Sandy Bridge E
    • Sandy Bridge
  • Thermal Design Power (TDP)
    • 130 W
    • 95 W
  • Tcase
    • 66.8 °C
    • 72.6 °C

Side by side

Differences highlightedShow differences only
147 specifications
A

Alienware

Alienware AAR4-1428BKView product
B

Alienware

X51 Intel® Core™ i7 i7-2600

Model X51

View product
Processor16 differ
Processor manufacturerIntelIntel
Processor familyDiffersIntel® Core™ i7 X-seriesIntel® Core™ i7
Processor generationDiffers3rd gen Intel® Core™ i72nd gen Intel® Core™ i7
Processor modelDiffersi7-3820i7-2600
Processor cores44
Processor threads88
Processor boost frequency3.8 GHz3.8 GHz
Processor frequencyDiffers3.6 GHz3.4 GHz
Processor cacheDiffers10 MB8 MB
Processor cache typeSmart CacheSmart Cache
Bus typeDMIDMI
FSB ParityNoNo
System bus rate5 GT/s5 GT/s
Processor lithography32 nm32 nm
Processor operating modes64-bit64-bit
Processor seriesDiffersIntel Core i7-3800 Desktop SeriesIntel Core i7-2600 Desktop Series
Processor codenameDiffersSandy Bridge ESandy Bridge
Thermal Design Power (TDP)Differs130 W95 W
TcaseDiffers66.8 °C72.6 °C
Maximum number of PCI Express lanesDiffers4016
PCI Express slots version2.02.0
Number of processors installed11
Processor socketDiffersLGA 2011 (Socket R)LGA 1155 (Socket H2)
CPU multiplier (bus/core ratio)Differs4434
Maximum number of SMP processors11
PlatformPCPC
SteppingDiffersM1D2
Maximum internal memory supported by processorDiffers64 GB32 GB
Memory types supported by processorDDR3-SDRAMDDR3-SDRAM
Memory clock speeds supported by processorDiffers1066,1333,1600 MHz1066,1333 MHz
Memory bandwidth supported by processor (max)Differs51.2 GB/s21 GB/s
ECC supported by processorNoNo
Processor front side busKnown for one1600 MHz
Memory3 differ
Internal memory8 GB8 GB
Maximum internal memoryDiffers16 GB8 GB
Internal memory typeDDR3-SDRAMDDR3-SDRAM
Memory slotsDiffers4x DIMM2x DIMM
Memory channelsDiffersQuad-channelDual-channel
Memory clock speedKnown for one1600 MHz
Storage2 differ
Total storage capacityDiffers2 TB1 TB
Optical drive typeDVD Super Multi DLDVD Super Multi DL
Number of HDDs installed11
HDD capacityDiffers2 TB1 TB
HDD interfaceSATASATA
HDD speed7200 RPM7200 RPM
Graphicsidentical
On-board graphics cardKnown for oneYes
Discrete graphics card memoryKnown for one1 GB
Discrete graphics memory typeKnown for oneGDDR5
On-board graphics card familyKnown for oneIntel® HD Graphics
On-board graphics card modelKnown for oneIntel® HD Graphics 2000
Number of displays supported (on-board graphics)Known for one2
On-board graphics card base frequencyKnown for one850 MHz
On-board graphics card dynamic frequency (max)Known for one1350 MHz
On-board graphics card IDKnown for one0x102
Graphics card familyKnown for oneIntel, NVIDIA
Performance1 differ
Product typePCPC
Motherboard chipsetDiffersIntel® X79 ExpressIntel® H61
Audio output channels7.1 channels7.1 channels
Motherboard form factorKnown for onemicro ATX
Network1 differ
Ethernet LANYesYes
Ethernet LAN data rates10,100,1000 Mbit/s10,100,1000 Mbit/s
Cabling technology10/100/1000Base-T(X)10/100/1000Base-T(X)
Wi-FiDiffersNoYes
Top Wi-Fi standardKnown for oneWi-Fi 4 (802.11n)
Wi-Fi standardsKnown for oneWi-Fi 4 (802.11n)
Wake-on-LAN readyKnown for oneYes
Ethernet interface typeGigabit EthernetGigabit Ethernet
Networking featuresGigabit EthernetGigabit Ethernet
Wireless technologyKnown for oneWi-Fi
BluetoothKnown for oneNo
Copper ethernet cabling technologyKnown for one1000BASE-T, 1000BASE-TX, 100BASE-T, 100BASE-TX, 10BASE-T
Ports & interfacesidentical
USB 2.0 ports quantity66
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity22
HDMI ports quantityKnown for one1
Ethernet LAN (RJ-45) ports11
Headphone outputs11
Line-outYesYes
Line-inYesYes
Microphone inYesYes
VGA (D-Sub) ports quantityKnown for one0
DVI portKnown for oneNo
PS/2 ports quantity00
Firewire (IEEE 1394) ports00
S/PDIF out portYesYes
Serial ports quantity00
Parallel ports quantity00
HDMIKnown for oneYes
Headphone connectivity3.5 mm3.5 mm
Microphone connectivity3.5 mm3.5 mm
Poweridentical
Power supply typeKnown for oneAC/DC
Power supplyKnown for one875 W
Design1 differ
Chassis typeDiffersMidi TowerMini Tower
Product colourBlackBlack
Softwareidentical
Operating system installedWindows 7 Home PremiumWindows 7 Home Premium
Operating system architecture64-bit64-bit
Mac compatibilityNoNo
Compatible operating systemsKnown for oneWindows 7 Home Premium (64-bit) Windows 7 Professional (64-bit) Windows 7 Ultimate (64-bit)
Processor special features14 differ
CPU configuration (max)11
Embedded options availableDiffersNoYes
Enhanced Intel SpeedStep TechnologyYesYes
Execute Disable BitYesYes
Idle StatesYesYes
Intel 64YesYes
Intel Clear Video TechnologyNoNo
Intel Demand Based SwitchingNoNo
Intel Dual Display Capable TechnologyDiffersNoYes
Intel Enhanced Halt StateYesYes
Intel FDI TechnologyDiffersNoYes
Intel Fast Memory AccessDiffersNoYes
Intel Flex Memory AccessDiffersNoYes
Intel Identity Protection Technology version1.001.00
Intel Rapid Storage TechnologyNoNo
Intel Trusted Execution TechnologyDiffersNoYes
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® Clear Video HD Technology (Intel® CVT HD)DiffersNoYes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)NoNo
Intel® InTru™ 3D TechnologyDiffersNoYes
Intel® Insider™DiffersNoYes
Intel® Wireless Display (Intel® WiDi)NoNo
Processor ARK IDDiffers6369852213
Processor codeDiffersSR0LDSR00B
Processor package sizeDiffers52.5 x 45.0 mm37.5 x 37.5 mm
Supported instruction setsDiffersAVX, SSE4.2AVX
Thermal Monitoring TechnologiesYesYes
Intel® Turbo Boost Technology2.02.0
Intel® Hyper Threading Technology (Intel® HT Technology)YesYes
Intel® Quick Sync Video TechnologyDiffersNoYes
Intel® My WiFi Technology (Intel® MWT)NoNo
Intel® Identity Protection Technology (Intel® IPT)YesYes
Intel® Anti-Theft Technology (Intel® AT)NoNo
Conflict-Free processorNoNo
Intel Smart Response Technology versionKnown for one1.00
Intel® Smart CacheKnown for oneYes
Intel® Smart Response TechnologyKnown for oneYes
Audioidentical
Audio systemHDHD
Weight & dimensions4 differ
WidthDiffers250 mm95 mm
DepthDiffers645 mm318 mm
HeightDiffers426 mm343 mm
WeightDiffers20.4 kg5.49 kg
Dimensions (WxDxH)Known for one250 x 645 x 426 mm
Certificatesidentical
Compliance industry standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3abIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Expansion slotsidentical
PCI Express x1 slotsKnown for one2
PCI Express x16 slotsKnown for one2
Displayidentical
Display includedKnown for oneNo

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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