Product comparison · 2 pcs/workstations

Alienware Aurora Intel® Core™ i7 X-series i7-4820K vs Alienware X51 R2

106specifications compared
41differ
65identical
52known for one product only

Key differences

Processor family
- Aurora Intel® Core™ i7 X-series i7-4820K:Intel® Core™ i7 X-series
- X51 R2:Intel® Core™ i7
Processor model
- Aurora Intel® Core™ i7 X-series i7-4820K:i7-4820K
- X51 R2:i7-4770
Processor frequency
- Aurora Intel® Core™ i7 X-series i7-4820K:3.7 GHz
- X51 R2:3.4 GHz
Processor cache
- Aurora Intel® Core™ i7 X-series i7-4820K:10 MB
- X51 R2:8 MB
Thermal Design Power (TDP)
- Aurora Intel® Core™ i7 X-series i7-4820K:130 W
- X51 R2:84 W
Tcase
- Aurora Intel® Core™ i7 X-series i7-4820K:66.8 °C
- X51 R2:72.72 °C
Maximum number of PCI Express lanes
- Aurora Intel® Core™ i7 X-series i7-4820K:40
- X51 R2:16
Processor socket
- Aurora Intel® Core™ i7 X-series i7-4820K:LGA 2011 (Socket R)
- X51 R2:LGA 1150 (Socket H3)

Side by side

Differences highlightedShow differences only

Comparison of Aurora, X51 R2
158 specifications	A Alienware Aurora Intel® Core™ i7 X-series i7-4820K Model Aurora View product	B Alienware X51 R2 View product
Processor12 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7 X-series	Intel® Core™ i7
Processor generation	4th gen Intel® Core™ i7	4th gen Intel® Core™ i7
Processor modelDiffers	i7-4820K	i7-4770
Processor cores	4	4
Processor threads	8	8
Processor boost frequency	3.9 GHz	3.9 GHz
Processor frequencyDiffers	3.7 GHz	3.4 GHz
Processor cacheDiffers	10 MB	8 MB
Processor cache type	Smart Cache	Smart Cache
Bus type	DMI2	DMI2
FSB ParityKnown for one	Unknown — not stated by the source	No
System bus rate	5 GT/s	5 GT/s
Processor lithography	22 nm	22 nm
Processor operating modes	64-bit	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core i7-4700 Desktop series
Processor codenameKnown for one	Unknown — not stated by the source	Haswell
Thermal Design Power (TDP)Differs	130 W	84 W
TcaseDiffers	66.8 °C	72.72 °C
Maximum number of PCI Express lanesDiffers	40	16
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8, 1x8+2x4
PCI Express slots version	3.0	3.0
Number of QPI linksKnown for one	Unknown — not stated by the source	1
Number of processors installed	1	1
Processor socketDiffers	LGA 2011 (Socket R)	LGA 1150 (Socket H3)
SteppingDiffers	S1	C0
Maximum internal memory supported by processorDiffers	64 GB	32 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	1333,1600,1866 MHz	1333,1600 MHz
Memory bandwidth supported by processor (max)Differs	59.7 GB/s	25.6 GB/s
ECC supported by processor	No	No
Memory voltage supported by processorKnown for one	Unknown — not stated by the source	1.5 V
Memory2 differ
Internal memory	8 GB	8 GB
Maximum internal memoryDiffers	32 GB	16 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory slotsKnown for one	Unknown — not stated by the source	2x DIMM
Memory clock speed	1600 MHz	1600 MHz
Memory channelsDiffers	Quad-channel	Dual-channel
Memory layout (slots x size)Known for one	4 x 2 GB	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	2 TB	1 TB
Optical drive type	DVD Super Multi DL	DVD Super Multi DL
Storage media	HDD	HDD
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD capacityKnown for one	Unknown — not stated by the source	1 TB
HDD interfaceDiffers	SATA	SATA II
HDD speed	7200 RPM	7200 RPM
Card reader integratedKnown for one	Unknown — not stated by the source	No
Graphics3 differ
On-board graphics cardDiffers	No	Yes
Discrete graphics card modelDiffers	NVIDIA® GeForce® GTX 760	NVIDIA® GeForce® GTX 660
Discrete graphics card memory	1.536 GB	1.536 GB
Number of discrete graphics cardsKnown for one	Unknown — not stated by the source	1
On-board graphics card familyKnown for one	Unknown — not stated by the source	Intel® HD Graphics
On-board graphics card modelDiffers	Not available	Intel® HD Graphics 4600
Maximum on-board graphics card memoryKnown for one	Unknown — not stated by the source	2 GB
Number of displays supported (on-board graphics)Known for one	Unknown — not stated by the source	3
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	350 MHz
On-board graphics card dynamic frequency (max)Known for one	Unknown — not stated by the source	1200 MHz
On-board graphics card DirectX versionKnown for one	Unknown — not stated by the source	11.2/12
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x412
On-board graphics card OpenGL versionKnown for one	Unknown — not stated by the source	4.3
Discrete graphics memory typeKnown for one	GDDR5	Unknown — not stated by the source
Performanceidentical
Product type	PC	PC
Audio output channels	7.1 channels	7.1 channels
Motherboard form factorKnown for one	micro ATX	Unknown — not stated by the source
Optical driveidentical
Optical drives quantity	1	1
Network1 differ
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Wi-FiDiffers	No	Yes
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 4 (802.11n)
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Wake-on-LAN readyKnown for one	Unknown — not stated by the source	Yes
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	6	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	8
HDMI ports quantityDiffers	0	1
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-outKnown for one	Unknown — not stated by the source	Yes
Line-in	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	0	0
DVI port	No	No
PS/2 ports quantity	0	0
S/PDIF out port	Yes	Yes
Design1 differ
Chassis typeDiffers	Midi Tower	Desktop
Placement supportedKnown for one	Unknown — not stated by the source	Horizontal/Vertical
Liquid cooling system	No	No
Product colour	Black	Black
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 8
Operating system architecture	64-bit	64-bit
Trial softwareKnown for one	Unknown — not stated by the source	Microsoft Office
Displayidentical
Display included	No	No
Processor special features10 differ
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	22 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Small Business Advantage (SBA) versionKnown for one	Unknown — not stated by the source	1.00
Intel Stable Image Platform Program (SIPP)Known for one	Unknown — not stated by the source	Yes
Intel Stable Image Platform Program (SIPP) versionKnown for one	Unknown — not stated by the source	1.00
Intel TSX-NIKnown for one	Unknown — not stated by the source	No
Intel TSX-NI versionKnown for one	Unknown — not stated by the source	0.00
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Active Management Technology (Intel® AMT)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Unknown — not stated by the source	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® High Definition Audio (Intel® HD Audio)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® Insider™Differs	No	Yes
Intel® OS GuardKnown for one	Unknown — not stated by the source	Yes
Intel® Secure KeyKnown for one	Unknown — not stated by the source	Yes
Intel® Small Business Advantage (Intel® SBA)	No	No
Intel® Smart Cache	Yes	Yes
Intel® Wireless Display (Intel® WiDi)Differs	No	Yes
Processor ARK IDDiffers	77781	75122
Processor codeDiffers	SR1AU	SR149
Processor package sizeDiffers	52.5 x 45.0 mm	37.5 x 37.5 mm
ScalabilityKnown for one	Unknown — not stated by the source	1S
Supported instruction setsDiffers	AES, AVX, SSE4.2	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Thermal solution specificationKnown for one	Unknown — not stated by the source	PCG 2013D
Intel® Smart Response TechnologyDiffers	Yes	No
Intel® Rapid Start Technology	No	No
Intel® Turbo Boost Technology	2.0	2.0
Intel Smart Connect Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Quick Sync Video TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® My WiFi Technology (Intel® MWT)Differs	No	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)Differs	No	Yes
Conflict-Free processor	Yes	Yes
Intel Smart Response Technology versionKnown for one	1.00	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	HD
Weight & dimensions4 differ
WidthDiffers	250 mm	95 mm
DepthDiffers	645 mm	318 mm
HeightDiffers	426 mm	343 mm
WeightDiffers	20.4 kg	5.49 kg
Packaging content2 differ
Mouse includedDiffers	No	Yes
Keyboard includedDiffers	No	Yes
Expansion slotsidentical
PCI Express x1 slotsKnown for one	2	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	2	Unknown — not stated by the source
Poweridentical
Power supplyKnown for one	875 W	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.

More pcs/workstations comparisons

All pcs/workstations comparisons