Product comparison · 2 pcs/workstations

Alienware Steam Machine vs Alienware X51 R3

138specifications compared
57differ
81identical
40known for one product only

Key differences

Processor family
- Steam Machine:Intel® Core™ i7
- X51 R3:Intel® Core™ i5
Processor generation
- Steam Machine:4th gen Intel® Core™ i7
- X51 R3:6th gen Intel® Core™ i5
Processor model
- Steam Machine:i7-4785T
- X51 R3:i5-6600K
Processor threads
- Steam Machine:8
- X51 R3:4
Processor boost frequency
- Steam Machine:3.2 GHz
- X51 R3:3.9 GHz
Processor frequency
- Steam Machine:2.2 GHz
- X51 R3:3.5 GHz
Processor cache
- Steam Machine:8 MB
- X51 R3:6 MB
Bus type
- Steam Machine:DMI
- X51 R3:DMI3

Side by side

Differences highlightedShow differences only

Comparison of Steam Machine, X51 R3
178 specifications	A Alienware Steam Machine View product	B Alienware X51 R3 View product
Processor18 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Core™ i5
Processor generationDiffers	4th gen Intel® Core™ i7	6th gen Intel® Core™ i5
Processor modelDiffers	i7-4785T	i5-6600K
Processor cores	4	4
Processor threadsDiffers	8	4
Processor boost frequencyDiffers	3.2 GHz	3.9 GHz
Processor frequencyDiffers	2.2 GHz	3.5 GHz
Processor cacheDiffers	8 MB	6 MB
Processor cache type	Smart Cache	Smart Cache
Bus typeDiffers	DMI	DMI3
FSB Parity	No	No
System bus rateKnown for one	5 GT/s	Unknown — not stated by the source
Processor lithographyDiffers	22 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core i7-4700 Desktop series	Intel Core i5-6600 Desktop Series
Processor codenameDiffers	Haswell	Skylake
Thermal Design Power (TDP)Differs	35 W	91 W
TcaseDiffers	66.35 °C	64 °C
Maximum number of PCI Express lanes	16	16
PCI Express configurations	1x16, 2x8, 1x8+2x4	1x16, 2x8, 1x8+2x4
PCI Express slots version	3.0	3.0
Number of QPI links	0	0
Number of processors installed	1	1
Processor socketDiffers	LGA 1150 (Socket H3)	LGA 1151 (Socket H4)
SteppingDiffers	C0	R0
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processorDiffers	DDR3-SDRAM	DDR3L-SDRAM, DDR4-SDRAM
Memory clock speeds supported by processorDiffers	1333,1600 MHz	1600,2133 MHz
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	34.2 GB/s
ECC supported by processor	No	No
Memory voltage supported by processorKnown for one	1.5 V	Unknown — not stated by the source
Memory2 differ
Internal memory	8 GB	8 GB
Maximum internal memoryKnown for one	16 GB	Unknown — not stated by the source
Internal memory typeDiffers	DDR3L-SDRAM	DDR4-SDRAM
Memory slotsKnown for one	2x SO-DIMM	Unknown — not stated by the source
Memory clock speedDiffers	1600 MHz	2133 MHz
Memory channels	Dual-channel	Dual-channel
Storageidentical
Total storage capacity	1 TB	1 TB
Optical drive type	No	No
Storage media	HDD	HDD
Number of storage drives installed	1	1
Number of HDDs installed	1	1
HDD capacity	1 TB	1 TB
HDD interface	SATA III	SATA III
HDD speed	7200 RPM	7200 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Card reader integratedKnown for one	No	Unknown — not stated by the source
Graphics8 differ
On-board graphics card	Yes	Yes
Discrete graphics card memoryDiffers	2 GB	4 GB
Discrete graphics memory typeDiffers	GDDR5	GDDR3
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics 4600	Intel® HD Graphics 530
Maximum on-board graphics card memoryDiffers	1.7 GB	1.74 GB
Number of displays supported (on-board graphics)	3	3
On-board graphics card base frequency	350 MHz	350 MHz
On-board graphics card dynamic frequency (max)Differs	1200 MHz	1150 MHz
On-board graphics card DirectX versionDiffers	11.1	12.0
On-board graphics card IDDiffers	0x412	1912
On-board graphics card OpenGL versionDiffers	4.0	4.3
Graphics card Open GL support	Yes	Yes
Discrete graphics card modelKnown for one	Unknown — not stated by the source	NVIDIA® GeForce® GTX 745
Number of discrete graphics cardsKnown for one	Unknown — not stated by the source	1
NVIDIA G-SYNCKnown for one	Unknown — not stated by the source	Yes
Number of execution unitsKnown for one	Unknown — not stated by the source	24
Graphics card DVI-D ports quantityKnown for one	Unknown — not stated by the source	1
Graphics card HDMI ports quantityKnown for one	Unknown — not stated by the source	1
Graphics card VGA (D-Sub) ports quantityKnown for one	Unknown — not stated by the source	1
Performance2 differ
Product typeDiffers	Mini PC	PC
Motherboard chipsetDiffers	Intel® H81	Intel® Z170
Password protection	Yes	Yes
Motherboard form factorKnown for one	Unknown — not stated by the source	mini ITX
Optical driveidentical
Optical drives quantity	0	0
Network2 differ
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,1000,100 Mbit/s	10,1000,100 Mbit/s
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Wi-Fi	Yes	Yes
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)	Wi-Fi 5 (802.11ac)
Wi-Fi standardsDiffers	802.11a, 802.11g, Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)	Wi-Fi 5 (802.11ac)
Bluetooth	Yes	Yes
Bluetooth versionDiffers	4.0	4.2
Ports & interfaces5 differ
USB 2.0 ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	4
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers	0	2
Thunderbolt ports quantityKnown for one	0	Unknown — not stated by the source
Thunderbolt 2 ports quantityKnown for one	0	Unknown — not stated by the source
HDMI ports quantityDiffers	2	1
HDMI versionKnown for one	1.4a	Unknown — not stated by the source
Ethernet LAN (RJ-45) ports	1	1
Headphone outputsDiffers	0	1
Microphone inDiffers	No	Yes
VGA (D-Sub) ports quantity	0	0
DVI port	No	No
S/PDIF out portKnown for one	Yes	Unknown — not stated by the source
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Line-inKnown for one	Unknown — not stated by the source	Yes
Poweridentical
Power supplyKnown for one	130 W	Unknown — not stated by the source
Power supply input voltageKnown for one	100 - 240 V	Unknown — not stated by the source
Power supply input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Design1 differ
Chassis typeKnown for one	Desktop	Unknown — not stated by the source
Placement supportedDiffers	Horizontal	Horizontal/Vertical
Cable lock slotKnown for one	No	Unknown — not stated by the source
Liquid cooling system	No	No
Product colour	Black	Black
Software1 differ
Operating system installedDiffers	Steam OS	Windows 10 Home
Operating system architectureKnown for one	Unknown — not stated by the source	64-bit
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Displayidentical
Display included	No	No
Processor special features14 differ
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyDiffers	22 nm	14 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	No	Yes
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	Yes	No
Intel Fast Memory AccessDiffers	No	Yes
Intel Flex Memory Access	No	No
Intel HD Graphics	Yes	Yes
Intel Identity Protection Technology version	1.00	1.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology version	1.00	1.00
Intel Small Business Advantage (SBA) version	1.00	1.00
Intel Stable Image Platform Program (SIPP)Differs	Yes	No
Intel Stable Image Platform Program (SIPP) versionDiffers	1.00	0.00
Intel TSX-NIDiffers	No	Yes
Intel TSX-NI versionDiffers	0.00	1.00
Intel Trusted Execution TechnologyDiffers	Yes	No
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® Built-in Visuals TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® Clear Video HD Technology (Intel® CVT HD)	Yes	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	No	Yes
Intel® InTru™ 3D Technology	Yes	Yes
Intel® Insider™	Yes	Yes
Intel® OS Guard	Yes	Yes
Intel® Secure Key	Yes	Yes
Intel® Small Business Advantage (Intel® SBA)Differs	Yes	No
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Virtualization Technology (Intel® VT)	VT-x, VT-d	VT-x, VT-d
Intel® Wireless Display (Intel® WiDi)	Yes	Yes
Processor ARK IDDiffers	80814	88191
Processor codeKnown for one	SR1QU	Unknown — not stated by the source
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Scalability	1S	1S
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2	AVX 2.0, SSE4.1, SSE4.2
Thermal Monitoring Technologies	Yes	Yes
Thermal solution specificationDiffers	PCG 2013A	PCG 2015D
Intel® Turbo Boost Technology	2.0	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	Yes	Yes
Intel® Anti-Theft Technology (Intel® AT)	Yes	Yes
Conflict-Free processor	Yes	Yes
Intel Software Guard Extensions (Intel SGX)Known for one	Unknown — not stated by the source	Yes
Audioidentical
Audio systemKnown for one	HD	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 35 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 65 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	0 - 95%	Unknown — not stated by the source
Operating altitudeKnown for one	-15.24 - 3048 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-15.24 - 10668 m	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	200 mm	95 mm
DepthDiffers	200 mm	318 mm
HeightDiffers	55 mm	343 mm
WeightDiffers	1.81 kg	5.49 kg
Packaging contentidentical
Mouse included	No	No
Keyboard included	No	No
Cables includedKnown for one	AC	Unknown — not stated by the source
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Manual	Yes	Yes

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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