Easily bring high performance PC gaming into any room in your house. Whether you re connected to a monitor or an HDTV, the versatile Alienware X51 lets you experience big-screen gaming wherever...
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20 Reasons For
64-Bit Processor Operating Mode
This PC supports a 32-bit|64-bit processor operating mode, which is typical of many desktop computers of a comparable age and spec to it.
Quite Fast On-Board Graphics Adapter Dynamic Frequency
With an on-board graphics adapter dynamic frequency of 1,200 megahertz, the Alienware X51 has a quite fast on-board graphics adapter dynamic frequency compared to most of the other medium processor core computers that have been around for more than a year. Across all the medium processor core computers that came out around the same time as the X51 the on-board graphics adapter dynamic frequencies range from 700MHz to 1,300MHz, and the average on-board graphics adapter dynamic frequency is 1,100MHz.
Six USB 3.0 (3.1 Gen 1) Type-A Ports
The Alienware X51 is a six USB 3.0 (3.1 Gen 1) Type-A port computer.
Quite Fast Processor Clock Speed
With a processor clock speed of 3.6 gigahertz, the Alienware X51 has one of the faster processor clock speeds amongst medium processor core computers of this age. The processor clock speeds of PCs of this age and spec range from 1.3GHz to 4GHz.
We think you might also be interested in some of the other 3.6GHz processor clock speed personal computers currently available including the Fujitsu Celsius W530 (£1,035.64), the HP ProDesk 490 G2 (£680.56), or the DELL XPS 8700 (£658.80) which is cheaper.
If this Alienware computer processor clock speed is not fast enough for you then you might want to look at the Alienware X51 (£739.00) (4GHz) which is also cheaper.
Quite Big Internal Memory
The Alienware X51 has a quite big internal memory (16 gigabytes) compared to most of the other medium processor core computers that were released more than a year ago. The smallest internal memory of comparable spec computers that have been around for around the same time as the X51 is 2GB and the biggest is 64GB.
There are a number of alternative 16GB memory desktop computers currently available that you might want to consider including cheaper personal computers such as the DELL XPS 8700 (£658.80).
SSD Storage Medium
The Alienware X51 has an SSD storage medium which is faster than the HDD storage medium found on most personal computers of a similar spec and age to it. Solid State Drives (SSD) store information in transistors on a circuit board rather than on optical or magnetic media. This has the advantage of being much faster than a traditional HDD drive.
An SSD storage medium is in fact the best storage speed across all personal computers of a comparable type and age to the X51.
An HDD storage medium is the worst storage speed amongst comparable types of desktop computer.
We compared this computer to all the other SSD personal computers and we think the HP ProDesk 600 G2 (£619.54) which is cheaper is also worth considering.
+15 More reasons for
Alienware Has Good PC Reviews
Based on 149 expert and user reviews, Alienware has good reviews for its PCs. Alienware also has good reviews specifically for its medium processor core computers compared to other manufacturers.
Quite Fast Maximum Turbo Frequency
At 4 gigahertz, the Alienware X51 has a quite fast maximum turbo frequency compared to most of the other similar spec desktop computers that have been on the market for a comparable time to the X51. The average maximum turbo frequency of comparable spec desktop computers that have been available for around the same time as the X51 is 3.6GHz.
L3 Processor Cache Level
This desktop computer has a L3 processor cache level, which is the most frequently found processor cache level on medium processor core computers that have been on the market for more than a year.
3 PCI Express Slots Version
This PC supports a 3 PCI Express slots version, which is the most frequently supported PCI Express slots version on PCs of a similar age and spec to it.
Supports One Case Placement
The number of placements supported by the Alienware X51 is more than most PCs of this type and age. The most commonly supported case placement is Vertical, but this case placement is not supported by this desktop computer. The case placements Horizontal are also supported by this computer.
10/100/1000Base-T(X) Cabling Technology
This personal computer has a 10/100/1000Base-T(X) cabling technology, which is the most frequently found cabling technology on computers of this age and spec.
Six USB 3.0 Ports
Most similar spec computers that have been available for around the same time as the X51 have between one and eight USB 3.0 ports, including the Alienware X51 which has six USB 3.0 ports.
Fairly Big Solid-State Drive Capacity
Similar spec desktop computers that have been available for more than a year have solid-state drive capacities of between 8GB and 1TB. The Alienware X51 has a quite big solid-state drive capacity (256 gigabytes) compared to most of the other medium processor core computers that have been around for around the same time as the X51.
Eight Processor Threads
The Alienware X51 is a eight processor thread PC.
Quite Big Processor Cache
With a processor cache of 8 megabytes, the Alienware X51 has one of the bigger processor caches amongst similar spec desktop computers of this age. The processor caches of desktop computers of this age and spec range from 2MB to 10MB, and the average processor cache is 6.6MB.
7.1 Audio Output Channel
The Alienware X51 has a better audio output than most medium processor core computers that have been available for around the same time as it. This personal computer has a 7.1 audio output channel, whereas most medium processor core computers that have been around for around the same time as it have a 5.1 audio output channel.
A 7.1 audio output channel is in fact the best audio output amongst all computers of this type and age.
Amongst comparable types of PC the worst audio output is 5.1.
GDDR Discrete Graphics Memory Type
This personal computer supports a GDDR5 discrete graphics memory type, which is the most commonly supported discrete graphics memory type on PCs of a similar type and age to it.
The weights of personal computers of a comparable age and type to the X51 range from 38g to 23kg. With a weight of only 5.5 kilograms, the Alienware X51 is one of the lighter medium processor core computers that have been available for around the same time as the X51 amongst medium processor core computers of this age.
With a width of only 95 millimeters, the Alienware X51 is one of the narrower computers of this age and type amongst desktop computers of this age. The average width of comparable spec computers that were launched around the same time as the X51 is 190mm, and the widths range from 33mm to 510mm.
6 Reasons Against
Very Small Discrete Graphics Adapter Memory
At only 2 gigabytes, the Alienware X51 has a quite small discrete graphics adapter memory compared to most of the other medium processor core computers that have been on the market for a similar time to the X51. Across all the comparable spec desktop computers that are a similar age to the X51 the discrete graphics adapter memory capacities range from 1GB to 8.2TB.
Very Small Total Storage Capacity
At only 256 gigabytes, the Alienware X51 has a quite small total storage capacity compared to most of the other computers of a comparable age and type to the X51. The smallest total storage capacity of comparable spec personal computers that were released one year ago is 4GB, the biggest is 3.6TB, and the average total storage capacity is 770GB.
We compared all the other 256GB total storage capacity personal computers to this PC and we think cheaper PCs such as the Fujitsu Celsius W530 (£1,035.64) is also worth considering.
If this Alienware personal computer total storage capacity is not big enough for you then you might want to consider the Fujitsu Q920 (500GB), or the HP 800 G2 (£640.06) (500GB) which is also cheaper.
Only 11 On-Board Graphics Adapter DirectX Version
This personal computer supports a 11.1 on-board graphics adapter DirectX version, which is typical of many computers of a similar age and spec to it.
We think this personal computer looks expensive compared to other medium processor core computers that were launched more than a year ago. The price range of medium processor core computers that were launched more than a year ago is from £99 to £2,194.
+3 More reasons against
Only Two USB 2.0 Ports
The Alienware X51 is a two USB 2.0 port PC.
Only Has One Memory Slot
The Alienware X51 has a greater number of memory slots than most desktop computers of this age and spec. The most frequently found memory slot is 4x DIMM, but this memory slot is not found on this computer. The memory slots 2x DIMM are also found on this desktop computer.
1 Other reason to consider the Alienware X51
Released Over a Year Ago
This PC has been on the market for over a year.
Intel Core i7, Intel Core i7-4xxx
Processor Clock Speed
PCI Express Slots Version
System Bus Data Transfer Rate
Processor Cache Level
LGA1150, Socket H3 (LGA 1150)
Maximum Turbo Frequency
Memory Channel Supported Processor
Max Memory Bandwidth Supported Processor
Memory Clock Speed Supported by Processor
Memory Type Supported Processor
Max Internal Memory Supported Processor
Conflict Free Processor
PCI Express Lane (maximum)
Processor Operating Mode
PCI Express Configuration
1x1, 1x16, 2x8, 1x8, 1x8+2x4, 2x4
Thermal Design Power (TDP)
Processor Cache Type
Smart Cache, L3
Memory Clock Speed
Maximum Internal Memory
Internal Memory Type
Total Storage Capacity
Solid-State Drive Capacity
Solid State Drive Installed
Integrated Card Reader
Optical Drive Type
On-Board Graphics Adapter Model
Intel HD Graphics, Intel HD Graphics 4600
Discrete Graphics Memory Type
Discrete Graphics Adapter Model
AMD Radeon R9 270
Discrete Graphics Adapter Memory
On-Board Graphics Adapter ID
On-Board Graphics Adapter DirectX Version
On-Board Graphics Adapter Dynamic Frequency
On-Board Graphics Adapter Base Frequency
Displayssupported by On-Board Grap
Maximum On-Board Graphics Adapter Memory
Operating System Architecture
Ethernet LAN Data Rate
10, 10, 100, 10, 100, 1000
Ethernet LAN Connection
Ports & Interfaces
S/PDIF Out Port
Headphone Out Port
Microphone in Port
Ethernet LAN (RJ-45) Port
USB 3.0 Port
USB 2.0 Port
USB 3.0 (3.1 Gen 1) Type-A Port
Water Cooling System
Audio Output Channel
Processor Special Features
Intel Anti-Theft Technology
Intell Identity Protection Technology
Intel My WiFi Technology
Intel Quick Sync Videotechnology
Intel Hyper-Threading Technology
Intel Smart Connect Technology
Intel Turbo Boost Technology
Intel Smart Response Technology
Intel VPro Technology
Intel Wireless Display (WiDi) Technology
Enhanced Intel SpeedStep Technology
Intel Rapid Start Technology
Intel Small Business Advantage (SBA)
Intel Secure Key
Intel AES New Instructions
Intel Stable Image Platform Program (SIPP)
Intel FDI Technology
Intel Clear Video HD Technology
Thermal Monitoring Technology
Execute Disable Bit
Intel InTru 3D Technology
Intel Trusted Execution Technology
Intel VT-X With Extended Page Tables (EPT)
Intel Virtualization Technology (VT-X)
AVX, AVX 2.0, SSE, SSE4.1, SSE, SSE4.2
Intel Enhanced Halt State
Intel Small Business Advantage (SBA) Version
Intel Virtualization Technology for Directed I/O
Thermal Solution Specification
Processor Package Size
CPU Configuration (max)
Intel Identity Protection Technology Version
Intel Stable Image Platform Program (SIPP) Version
Graphics & IMC Lithography
Intel Smart Cache
Intel Secure Key Technology Version
Processor ARK ID
Power Supply Input Voltage
100 - 240
Power Supply Input Frequency
50 - 60
Weight & Dimensions
Storage Temperature Range
-10 - 45
-15.2 - 10668
-15.2 - 3048
Relative Humidity Operating Range
20 - 80
Operating Temperature Range
10 - 35
Intel Virtualization Technology
Maximum Internal Memory
On-Board Graphics Adapter
Intel Visual Technology
Intel Clear Video HD, Intel Insider, Intel InTru 3D, Intel Quick Sync Video
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