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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

17 Reasons For

64-Bit Processor Operating Modes

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

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Very Fast On-Board Graphics Adapter Dynamic Frequency (max)

The Alienware X51 has one of the fastest on-board graphics adapter dynamic frequency (max)s (1,250 megahertz) amongst similar spec desktop computers of this age. The on-board graphics adapter dynamic frequency (max)s of personal computers of a comparable type and age to the X51 range from 500MHz to 1,300MHz.

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Six USB 3.0 (3.1 Gen 1) Type-A Ports Quantitys

Most medium processor cores computers that have been available for around the same time as the X51 have between one and seven USB 3.0 (3.1 Gen 1) Type-A ports quantitys, including the Alienware X51 which has six USB 3.0 (3.1 Gen 1) Type-A ports quantitys.

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Alienware Personal Computers Have Good Reviews

Based on 267 owner and expert reviews, Alienware has good reviews for its PCs. Alienware also has good reviews specifically for its medium processor cores computers compared to other manufacturers.

Very Fast Processor Frequency

The Alienware X51 has a very fast processor frequency (4 gigahertz) compared to most of the other PCs of this age and type. The average processor frequency of PCs that are a similar age to the X51 is 3.1GHz, and the processor frequencys range from 1.3GHz to 4GHz.

It may also be worth considering one of the other 4GHz processor clock speed desktop computers currently available including because of it's better review score, the MSI Nightblade Z97[plb_2788717_price].

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Quite Big Hard Drive Capacity

The smallest hard drive capacity of computers of a similar spec and age to the X51 is 1GB and the biggest is 3TB. At 2,000 gigabytes, the Alienware X51 has a fairly big hard drive capacity compared to most of the other medium processor cores computers that have been on the market for around the same time as the X51.

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Fairly Big Total Storage Capacity

The Alienware X51 has a quite big total storage capacity (2,000 gigabytes) compared to most of the other medium processor cores computers that have been available for more than a year. Computers of this age and spec have total storage capacitys of between 4GB and 3.6TB, and the average total storage capacity is 820GB.

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Fairly Big Internal Memory

Computers that have been available for more than a year have internal memorys of between 2GB and 32GB, and the average internal memory is 7.7GB. With an internal memory of 16 gigabytes, the Alienware X51's internal memory is one of the biggest amongst medium processor cores computers that were released around the same time as the X51.

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3 PCI Express Slots Version

This computer supports a 3 PCI Express slots version, which is typical of many computers of this age and spec.

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L3 Processor Cache Level

This computer has a L3 processor cache level, which is typical of many comparable spec computers that have been available for more than a year.

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Very Fast Processor Boost Frequency

The slowest processor boost frequency of medium processor cores computers that have been around for more than a year is 1.8GHz, the fastest is 4.4GHz, and the average processor boost frequency is 3.6GHz. With a processor boost frequency of 4.4 gigahertz, the Alienware X51 has one of the fastest processor boost frequencys amongst comparable spec personal computers of this age.

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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 the most frequently found cabling technology on medium processor cores computers that came out around the same time as it.

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Six USB 3.0 Ports

The Alienware X51 is a six USB 3.0 port computer. Most of the other medium processor cores computers that have been around for around the same time as the X51 have between one and seven USB 3.0 ports.

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Fairly Big Processor Cache

PCs of a similar spec and age to the X51 have processor caches of between 2MB and 10MB, and the average processor cache is 6.5MB. At 8 megabytes, the Alienware X51 has a fairly big processor cache compared to most of the other medium processor cores computers that were released one year ago.

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7.1 Audio Output Channels

The Alienware X51 has a 7.1 audio output channels which is better than most comparable spec PCs that are a similar age to it. Most personal computers of a similar age and spec to it have a 5.1 audio output channels. The audio output of all personal computers of a comparable age and spec to the X51 ranges from 5.1 to 8.1.

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Light

The average weight of personal computers of a similar spec and age to the X51 is 7.7kg. The Alienware X51 is fairly light (only 5.5 kilograms) compared to most of the other medium processor cores computers that were released one year ago.

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GDDR Discrete Graphics Memory Type

This desktop computer supports a GDDR5 discrete graphics memory type, which is typical of many similar spec personal computers that are a comparable age to it.

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6 Reasons Against

Only HDD Storage Media

The storage speed of this personal computer is HDD, which is the most commonly found storage media on desktop computers of a similar age and spec to 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.

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Only 11 On-Board Graphics Adapter DirectX Version

This computer supports a 11.2 on-board graphics adapter DirectX version, which is typical of many medium processor cores computers that were launched more than a year ago.

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Very Small Maximum On-Board Graphics Adapter Memory

The maximum on-board graphics adapter memorys of medium processor cores computers that are a similar age to the X51 range from 1GB to 64GB, and the average maximum on-board graphics adapter memory is 5.2GB. At only 1.024 gigabytes, the Alienware X51 has a fairly small maximum on-board graphics adapter memory compared to most of the other computers that have been around for a similar time to the X51.

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Only Has One Memory Slots

The Alienware X51 has a greater number of memory slots than most medium processor cores computers that have been on the market for more than a year. The most commonly found memory slots is 4x DIMM, but this memory slots is not found on this Alienware desktop computer. The memory slotss 2x DIMM are also found on this desktop computer.

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Only Two USB 2.0 Ports Quantitys

The Alienware X51 is a two USB 2.0 ports quantity personal computer. Most of the other PCs that are a similar age to the X51 have between one and nine USB 2.0 ports quantitys.

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Very Small Maximum Internal Memory

Across all the computers of a comparable age and type to the X51 the maximum internal memorys range from 2GB to 260GB, and the average maximum internal memory is 32GB. The Alienware X51 has one of the smaller maximum internal memorys (only 16 gigabytes) amongst medium processor cores computers of this age.

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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

(68)
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…

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
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
27 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...

2 July 2015

The Alienware X51 gaming desktop provides impressive performance for the price in a stylish, living-room-friendly package...

Tomsguide.com

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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…

« Prev 1 of 2 Next »

Brochures and Manuals

+- Manufacturer's Description

Product Identifiers

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

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See How Other PCs Compare to the Alienware X51

HP Z240 vs Alienware X51

HP Z240 vs Alienware X51
HP Z240
4 core Intel Core i5-6xxx 3.3GHz 8GB 1TB HDD
Alienware X51
4 core Intel Core i7-4xxx 4GHz 16GB 2TB HDD
£ 682.80
75% Bigger Maximum Internal Memory
Bigger Maximum Internal Memory Supported by Processor
Four USB 2.0 Ports Quantitys
0.72GB Bigger Maximum On-Board Graphics Adapter Memory
Four Less Processor Threadss
8GB Smaller Internal Memory

HP Z240 vs Alienware X51

HP Z240 vs Alienware X51
HP Z240
4 core Intel Xeon E3 v5 3.3GHz 8GB 1TB HDD
Alienware X51
4 core Intel Core i7-4xxx 4GHz 16GB 2TB HDD
£ 1,210.80
48GB Bigger Maximum Internal Memory
A Lot Bigger Max Internal Memory Supported Processor
Two More USB 2.0 Ports
Bigger Maximum On-Board Graphics Adapter Memory
Only Four Processor Threads
8GB Smaller Internal Memory
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