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Alienware X51
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Alienware X51 4 Core Intel Core I7-4xxx 4GHz 16GB 2TB HDD

PC Mag Editor's Choice Digital Versus 5 Star hothardware.com Editor's Choice tomsguide.com Editor's Choice PC Advisor.co.uk Recommended
4 Intel Core I7-4xxx 4GHz 16GB Mar 2015
Processor Cores Processor Family Processor Frequency Internal Memory Release Date
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... More
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ALIENS IN MY LIVINGROOM! - Alienware X51 Unboxing & Setup! (1080p)
Alienware X51 Small Form Factor Gaming PC Review
TmarTn's Introduction to PC Gaming!! (Battlefield 3 on Alienware X51)
Alienware X51 Review

18 Reasons For

64-Bit Processor Operating Mode

This desktop computer supports a 64-bit processor operating mode, which is typical of many medium processor core personal computers that came out around the same time as it.

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Very Fast On-Board Graphics Adapter Dynamic Frequency

The slowest on-board graphics adapter dynamic frequency of medium processor core personal computers that were released around the same time as the X51 is 640MHz, the fastest is 1,300MHz, and the average on-board graphics adapter dynamic frequency is 1,100MHz. The Alienware X51 has one of the fastest on-board graphics adapter dynamic frequencies (1,250 megahertz) amongst personal computers of this age.

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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 personal computer. Most of the other medium processor core personal computers that have been available for a comparable time to the X51 have between one and seven USB 3.0 (3.1 Gen 1) Type-A ports.

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Very Fast Processor Clock Speed

The slowest processor clock speed of computers that have been on the market for a comparable time to the X51 is 1.3GHz, the fastest is 4GHz, and the average processor clock speed is 3.1GHz. When compared to other medium processor core personal computers that came out around the same time as the X51 that we have checked, the Alienware X51's processor clock speed of 4 gigahertz is one of the fastest.

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Quite Big Hard Drive Capacity

The hard drive capacity of medium processor core personal computers that came out more than a year ago range from 1GB to 3TB. At 2,000 gigabytes, the Alienware X51 has a quite big hard drive capacity compared to most of the other medium processor core personal computers that have been around for around the same time as the X51.

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Fairly Big Total Storage Capacity

At 2,000 gigabytes, the Alienware X51 has a fairly big total storage capacity compared to most of the other medium processor core personal computers that were launched more than a year ago. The average total storage capacity of similar spec desktop computers that are a comparable age to the X51 is 840GB, and the total storage capacity range from 4GB to 3.6TB.

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Fairly Big Internal Memory

At 16 gigabytes, the Alienware X51 has a fairly big internal memory compared to most of the other similar spec computers that are a comparable age to the X51. The internal memory of similar spec PCs that have been available for a comparable time to the X51 range from 2GB to 64GB, and the average internal memory is 8.3GB.

There are a number of other 16GB memory desktop computers currently available that you might also want to look at including the DELL Precision T5810[plb_2518973_price] which is cheaper.

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L3 Processor Cache Level

This PC has a L3 processor cache level, which is the most frequently found processor cache level on personal computers that are a similar age to it.

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Very Fast Maximum Turbo Frequency

Comparable spec personal computers that have been available for a similar time to the X51 have maximum turbo frequencies of between 1.8GHz and 4.4GHz, and the average maximum turbo frequency is 3.6GHz. With a maximum turbo frequency of 4.4 gigahertz, the Alienware X51's maximum turbo frequency is one of the fastest amongst medium processor core personal computers that are a comparable age to the X51.

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3 PCI Express Slots Version

This PC supports a 3 PCI Express slots version, which is the most commonly supported PCI Express slots version on desktop computers of this age and type.

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10/100/1000Base-T(X) Cabling Technology

This desktop computer has a 10/100/1000Base-T(X) cabling technology, which is typical of many similar spec PCs that were launched more than a year ago.

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Six USB 3.0 Ports

Most comparable spec computers that were launched around the same time as the X51 have between one and seven USB 3.0 ports, including the Alienware X51 which has six USB 3.0 ports.

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Eight Processor Threads

The Alienware X51 has more processor threads than most of the PCs that have been available for more than a year. This desktop computer is a eight processor thread personal computer compared to most of the comparable spec computers that were released one year ago which only have between four and seven processor threads.

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Quite Big Processor Cache

The processor caches of desktop computers of a similar age and type to the X51 range from 2MB to 10MB. The Alienware X51 has one of the bigger processor caches (8 megabytes) amongst medium processor core personal computers of this age.

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7.1 Audio Output Channel

This desktop computer has a 7.1 audio output channel, which is the most frequently found audio output channel on computers of a comparable age and type to it.

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GDDR Discrete Graphics Memory Type

This PC supports a GDDR5 discrete graphics memory type, which is typical of many similar spec desktop computers that were released more than a year ago.

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Light

The Alienware X51 is one of the lighter similar spec desktop computers that are a comparable age to the X51 (only 5.5 kilograms) amongst similar spec PCs of this age. The lightest desktop computer of a similar age and type to the X51 is 38g heavy, the heaviest is 100kg, and the average weight is 7.5kg.

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Very Narrow

Across all the medium processor core personal computers that were released around the same time as the X51 the widths range from 33mm to 510mm, and the average width is 180mm. The Alienware X51 is one of the narrower PCs of this spec and age (only 95 millimeters) amongst medium processor core personal computers of this age.

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6 Reasons Against

Unexceptional Brand

Alienware has good ratings for its medium processor core personal computers, however it has unexceptional average ratings when measured across its entire computer range.

Only HDD Storage Medium

The storage speed of this personal computer is HDD, which is the most frequently found storage medium on medium processor core personal computers that have been available for around the same time as it. A Hard Disk Drive (HDD) is the traditional storage method for computers. A HDD stores the information on magnetic disks. HDD drives are cheap, but they are slower than Flash and SSD bases storage systems.

Alternative HDD computers currently available that you might also want to look at include cheaper desktop computers such as the Lenovo P310[plb_3192626_price], or the HP 600 G2[plb_3765201_price].

If the storage speed of this Alienware PC is not fast enough for you then you might also want to look at the HP ProDesk 600 G2 MT[plb_3068722_price] (SSD), or the DELL 7040 Micro[plb_3139663_price] (SSD) which is also cheaper.

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Very Small Maximum On-Board Graphics Adapter Memory

PCs that have been available for around the same time as the X51 have maximum on-board graphics adapter memories of between 1GB and 64GB. The Alienware X51 has one of the smaller maximum on-board graphics adapter memories (only 1.024 gigabytes) amongst similar spec PCs of this age.

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Only Has One Memory Slot

The Alienware X51 has a greater number of memory slots than most computers of a comparable age and type to it. The most frequently found memory slot is 4x DIMM, but this memory slot is not found on this desktop computer. The memory slots 2x DIMM are also found on this computer.

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Only Two USB 2.0 Ports

Most personal computers of this type and age have between one and nine USB 2.0 ports, including the Alienware X51 which has two USB 2.0 ports.

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Quite Small Discrete Graphics Adapter Memory

With a discrete graphics adapter memory of only 2,048 megabytes, the Alienware X51 has a quite small discrete graphics adapter memory compared to most of the other computers of this age and type. The smallest discrete graphics adapter memory of computers that have been available for around the same time as the X51 is 4.9MB and the biggest is 8.2GB.

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1 Other reason to consider the Alienware X51

Released Over a Year Ago

It was over a year ago when Alienware released the X51.

Specification

Processor
Processor Cores
Processor Family
Processor Frequency
PCI Express Slots Version
Processor Threads
System Bus Rate
Processor Cache Level
Processor Cache
Processor Socket
Processor Boost Frequency
Processor Model
ECC Supported by Processor
Memory Channels Supported by Processor
Memory Bandwidth Supported by Processor (max)
Memory Clock Speeds Supported by Processor
Memory Types Supported by Processor
Maximum Internal Memory Supported by Processor
Conflict Free Processor
Processor Series
Tcase
Maximum Number of PCI Express Lanes
Stepping
Processor Operating Modes
PCI Express Configurations
Processor Codename
Processor Lithography
Thermal Design Power (TDP)
Bus Type
Processor Cache Type
Number of Processors Installed
Memory
Internal Memory
Non-ECC
Memory Clock Speed
Memory Slots
Memory Layout (slots X Size)
Maximum Internal Memory
Internal Memory Type
Storage
Total Storage Capacity
Storage Media
Hard Drive Capacity
Hard Drive Speed
Hard Drive Interface
Number of Hard Drives Installed
Number of Storage Drives Installed
Card Reader Integrated
Optical Drive
Optical Drives Quantity
Optical Drive Type
Graphics
On-Board Graphics Adapter Model
Number of Discrete Graphics Adapters
Discrete Graphics Adapter Memory
Discrete Graphics Memory Type
Discrete Graphics Adapter Model
Discrete Graphics Adapter Memory
Number of Execution Units
On-Board Graphics Adapter ID
On-Board Graphics Adapter DirectX Version
On-Board Graphics Adapter Dynamic Frequency (max)
On-Board Graphics Adapter Base Frequency
Number of Displays Supported (on-Board Graphics)
Maximum On-Board Graphics Adapter Memory
On-Board Graphics Adapter
On-Board Graphics Adapter Family
Software
Operating System Installed
Operating System Language
Operating System Architecture
Networking
Bluetooth Version
Bluetooth
Wi-Fi Standards
Wi-Fi
Cabling Technology
Ethernet LAN Data Rates
Ethernet LAN
Ports & Interfaces
S/PDIF Out Port
Headphone Outputs
Microphone in
Line-Out
Line-in
Ethernet LAN (RJ-45) Ports
HDMI Ports Quantity
DVI Port
USB 3.0 Port
USB 2.0 Ports Quantity
USB 3.0 (3.1 Gen 1) Type-A Ports Quantity
Design
Chassis Type
Placement Supported
Colour of Product
Water Cooling System
Performance
Password Protection
Audio Output Channels
Audio System
Compatible Processor Series
Motherboard Chipset
Product Type
Processor Special Features
Intel® Anti-Theft Technology (Intel® AT)
Intel® Identity Protection Technology (Intel® IPT)
Intel® My WiFi Technology (Intel® MWT)
Intel® Quick Sync Video Technology
Intel® Hyper Threading Technology (Intel® HT Technology)
Intel Smart Connect Technology
Intel® Turbo Boost Technology
Intel® Smart Response Technology
Intel® VPro™ Technology
Intel® Wireless Display (Intel® WiDi)
Intel 64
Enhanced Intel SpeedStep Technology
Intel® Rapid Start Technology
Intel® Small Business Advantage (Intel® SBA)
Intel® Secure Key
Intel Clear Video Technology
Intel® AES New Instructions (Intel® AES-NI)
Intel Stable Image Platform Program (SIPP)
Intel FDI Technology
Intel TSX-NI
Idle States
Intel® OS Guard
Intel® Insider™
Intel® Clear Video HD Technology (Intel® CVT HD)
Thermal Monitoring Technologies
Execute Disable Bit
InTru™ 3D Technology
Intel Trusted Execution Technology
Intel VT-X With Extended Page Tables (EPT)
Intel Fast Memory Access
Intel Flex Memory Access
Intel Virtualization Technology (VT-X)
Supported Instruction Sets
Intel Dual Display Capable Technology
Intel Enhanced Halt State
Processor Code
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)
Scalability
Intel Virtualization Technology for Directed I/O (VT-D)
Thermal Solution Specification
Processor Package Size
CPU Configuration (max)
Intel Rapid Storage Technology
Intel Demand Based Switching
Intel Identity Protection Technology Version
Graphics & IMC Lithography
Intel® Smart Cache
Intel Secure Key Technology Version
Processor ARK ID
Power
Power Supply Input Voltage
Power Supply Input Frequency
Power Supply
Weight & Dimensions
Weight
Height
Depth
Width
Operational Conditions
Storage Temperature (T-T)
Non-Operating Altitude
Operating Altitude
Operating Relative Humidity (H-H)
Operating Temperature (T-T)
Packaging Content
Manual
Cables Included
Mouse Included
Display Included
Keyboard Supplied
AC Adapter Included
Other Features
Intel® Virtualization Technology (Intel® VT)
Technical Details
Intel Visual Technology

13 Awards

pcactual.com Recommended Les Numeriques.com 5 Star computershopper.com Editor's Choice hardwareheaven.com Recommended CNET.co.uk Editor's Choice kitguru.net Worth Buying Digitaltrends.com Recommended Product PC Mag Editor's Choice Digital Versus 5 Star 01net.com 5 Star hothardware.com Editor's Choice tomsguide.com Editor's Choice PC Advisor.co.uk Recommended

Expert Reviews

(70)
10 July 2016

What is the Alienware X51? Alienware is one of the strongest global brands of gaming PCs, with a range that now stretches to multiple mobile and desktop form factors. While many gaming PCs come in... Read more…

7 January 2016

Alienware's latest X51 gaming PC would not look out of place in an office. Yes, it still has the brand's distinctive alien head logo on the front, but the company shows uncharacteristic restraint... Read more…

6 January 2016

Alienware's latest X51 gaming PC would not look out of place in an office.Yes, it still has the brand's distinctive alien head logo on the front, but the company shows uncharacteristic restraint... Read more…

Stylis, compact design
Strong graphics performance
Relatively affordable
Useful personalization software
Slick, illuminated design
Doesn't support highest-end graphics cards
Not really suitable for more than 1080p
No SSD
High processor temperature
Relatively expensive
9 September 2015

The last time we looked at Dell's Alienware X51 series of console-sized gaming PCs was back in mid-2013. Back then we were working with Intel's 4th generation Haswell Core Series processors and... Read more…

28 August 2015

With a 6th generation Intel chips in tow, the revamped Alienware X51 has all the makings of a petite powerhouse. It's not without its shortcomings, but smart additions, like a M.2 PCIe slot and...

New Skylake processors
Space for SSD
Alienware Graphics Amplifier expansion
Reasonably priced
Small footprint
Proprietary motherboard
Tough to upgrade
Not the most powerful ITX system
No room for expansion
Does not include keyboard or mouse
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User Reviews

(10)

Alienware... Just buy all the parts on its own and pay someone to build it. save $$$...

Reviewed 27 September 2016 by Greased Lizard

Wouldn't touch this with a bargepole to be honest. It used to be that Alienware were the mutts nuts, not so much these days. The price tag is exceptionally high for a 2gb 960, and what's with only... Read more…

Reviewed 31 August 2016 by N RHODES | 11 Comments
(Verified Purchase)

Nothing wrong with the PC to be fair, however you couldn't upgrade the video card to the latest 1080 models.

Reviewed 26 July 2016 by Amazon Customer

For the people who said the graphics were bad when you were gaming, it could of been your monitor, not the PC. However, that's for you to decide upon.

Reviewed 4 June 2016 by Amazon Customer
(Verified Purchase)

At first we were excited because this is our first alienware. But the unit that was delivered to us had an issue with the dedicated graphics card. It worked at set-up. but when we started using it... Read more…

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Brochures and Manuals

+- Manufacturer's Description

Product Identifiers

Manufacturer Part Numbers r29793, alienware i74770, alienware i74770k
Barcodes 05397063709793
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