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Alienware X51 R2
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Alienware X51 R2 4 Core Intel Core I5-4xxx 3.2GHz 8GB 2TB HDD

hothardware.com Editor's Choice
4 Intel Core I5-4xxx 3.2GHz 8GB May 2015
Processor Core Processor Family Processor Clock Speed Internal Memory Release Date
All the power you want in any room you choose. Connect to your monitor or big screen TV and enjoy full PC gaming performance. Whether you choose to display your Alienware X51 vertically on your... More
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Alienware X51 R2 (2014) Review - Gaming Till Disconnected
Alienware X51 R2 Review
Alienware X51 R2 Unboxing (My New Gaming Setup)
Alienware x51 R2 Gaming Desktop Unboxing - $800 Gaming PC

13 Reasons For

64-Bit Processor Operating Mode

This desktop computer supports a 32-bit|64-bit processor operating mode, which is the most frequently supported processor operating mode on personal computers of a comparable type and age to it.

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

The Alienware X51 R2 is a six USB 3.0 (3.1 Gen 1) Type-A port PC. Most of the other personal computers of this age and type have between one and seven USB 3.0 (3.1 Gen 1) Type-A ports.

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Very Big Hard Drive Capacity

Comparable spec computers that were launched around the same time as the X51 R2 have hard drive capacity of between 1GB and 3TB. With a hard drive capacity of 2,000 gigabytes, the Alienware X51 R2 has a fairly big hard drive capacity compared to most of the other medium processor core personal computers that have been available for a similar time to the X51 R2.

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Fairly Big Total Storage Capacity

With a total storage capacity of 2,000 gigabytes, the Alienware X51 R2 has one of the bigger total storage capacity amongst medium processor core personal computers of this age. The total storage capacity of medium processor core personal computers that have been on the market for around the same time as the X51 R2 range from 4GB to 3.6TB.

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3 PCI Express Slots Version

This PC supports a 3 PCI Express slots version, which is typical of many medium processor core personal computers that are a comparable age to it.

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L3 Processor Cache Level

This personal computer has a L3 processor cache level, which is typical of many personal computers that were launched more than a year ago.

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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 PCs of a similar age and type to it.

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Six USB 3.0 Ports

The Alienware X51 R2 is a six USB 3.0 port desktop computer.

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Three Storage Drives

The Alienware X51 R2 is a three storage drive desktop computer.

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Quite Big Discrete Graphics Adapter Memory

With a discrete graphics adapter memory of 4,096 megabytes, the Alienware X51 R2 has one of the bigger discrete graphics adapter memory amongst medium processor core personal computers of this age. The average discrete graphics adapter memory of comparable spec PCs that have been available for a similar time to the X51 R2 is 3GB.

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GDDR Discrete Graphics Memory Type

This desktop computer supports a GDDR5 discrete graphics memory type, which is the most commonly supported discrete graphics memory type on PCs of a similar age and spec to it.

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Light

Medium processor core personal computers that have been available for a comparable time to the X51 R2 have weights of between 38g and 100kg, and the average weight is 7.5kg. At only 5.5 kilograms, the Alienware X51 R2 is fairly light compared to most of the other personal computers of this spec and age.

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Very Narrow

The Alienware X51 R2 is one of the narrower desktop computers of this spec and age (only 95 millimeters) amongst PCs of this age. The average width of computers of a comparable age and type to the X51 R2 is 180mm, and the widths range from 33mm to 510mm.

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13 Reasons Against

Unexceptional Brand

Whilst Alienware is one of the middle of the road computer brands according to average reviews from experts and users, Alienware has good ratings specifically for its medium processor core personal computers.

Quite Slow On-Board Graphics Adapter Dynamic Frequency

With an on-board graphics adapter dynamic frequency of only 1,100 megahertz, the Alienware X51 R2 has one of the slower on-board graphics adapter dynamic frequencies amongst medium processor core personal computers of this age. Across all the personal computers of this age and spec the on-board graphics adapter dynamic frequencies range from 640MHz to 1,300MHz, and the average on-board graphics adapter dynamic frequency is 1,100MHz.

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Quite Slow Max Memory Bandwidth Supported Processor

At only 25.6 gigabytes per second, the Alienware X51 R2 has a quite slow max memory bandwidth supported processor compared to most of the other medium processor core personal computers that were launched more than a year ago. The average max memory bandwidth supported processor of comparable spec personal computers that have been available for a similar time to the X51 R2 is 30GB/s, and the max memory bandwidth supported processor range from 10GB/s to 68GB/s.

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Very Small Max Internal Memory Supported Processor

The max internal memory supported processors of medium processor core personal computers that have been around for around the same time as the X51 R2 range from 2GB to 770GB. The Alienware X51 R2 has one of the smaller max internal memory supported processors (only 32 gigabytes) amongst medium processor core personal computers of this age.

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Only HDD Storage Medium

The storage speed of this personal computer is HDD, which is the most commonly found storage medium on medium processor core personal computers that have been around for more than a year. 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.

We compared all the other HDD personal computers to this computer and we think cheaper computers such as the Acer Aspire XC-705[plb_3121374_price] is also worth considering.

If you would prefer a computer with a faster storage speed then you might want to look at the OptiPlex 7020 MT[pl_2788976_price] (SSD), or the OptiPlex 3020 SFF[pl_2867167_price] (SSD) both from DELL or the Zoostorm Intel Core i5 Delta[plb_2756335_price] (SSD) which is also cheaper.

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Very Small Maximum On-Board Graphics Adapter Memory

At only 1.024 gigabytes, the Alienware X51 R2 has a fairly small maximum on-board graphics adapter memory compared to most of the other medium processor core personal computers that were launched more than a year ago. Medium processor core personal computers that were released one year ago have maximum on-board graphics adapter memories of between 1GB and 64GB.

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Only Has One Memory Slot

The Alienware X51 R2 has a greater number of memory slots than most computers that have been available for around the same time as it. The most commonly found memory slot is 4x DIMM, but this memory slot is not found on this personal computer. The memory slots 2x DIMM are also found on this PC.

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Only Two USB 2.0 Ports

The Alienware X51 R2 is a two USB 2.0 port desktop computer.

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Very Small Maximum Internal Memory

The Alienware X51 R2 has one of the smaller maximum internal memory (only 16 gigabytes) amongst comparable spec personal computers of this age. The maximum internal memory of comparable spec PCs that are a similar age to the X51 R2 range from 2GB to 260GB, and the average maximum internal memory is 33GB.

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Quite Small Processor Cache

The average processor cache of desktop computers of this spec and age is 6.6MB. With a processor cache of only 6 megabytes, the Alienware X51 R2 has one of the smaller processor caches amongst medium processor core personal computers of this age.

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Only Four Processor Threads

The Alienware X51 R2 is a four processor thread personal computer.

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Quite Slow Memory Clock Speed

The Alienware X51 R2 has a fairly slow memory clock speed (only 1,600 megahertz) compared to most of the other medium processor core personal computers that came out more than a year ago. The memory clock speeds of medium processor core personal computers that are a similar age to the X51 R2 range from 1,000MHz to 2,400MHz.

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Very Low System Bus Data Transfer Rate

Across all the medium processor core personal computers that have been available for more than a year the system bus data transfer rates range from 5GT/s to 8GT/s, and the average system bus data transfer rate is 6GT/s. At only 5 Gigatransfers per second, the Alienware X51 R2 has a fairly low system bus data transfer rate compared to most of the other medium processor core personal computers that were released one year ago.

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3 Other reasons to consider the Alienware X51 R2

Released Over a Year Ago

This personal computer was released over a year ago.

Average Processor Clock Speed

At 3.2 gigahertz, the Alienware X51 R2 has a pretty standard processor clock speed compared to most of the other medium processor core personal computers that have been around for a comparable time to the X51 R2.

Personal computers with a faster processor clock speed that might be worth considering include the DELL OptiPlex 9020[plb_2881921_price] (3.3GHz), or the Acer Veriton M2631[plb_2885009_price] (3.3GHz) which is also cheaper.

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Average Internal Memory

At 8 gigabytes, the Alienware X51 R2 has a relatively average internal memory compared to most of the other medium processor core personal computers that were released more than a year ago.

There are a number of other 8GB memory desktop computers currently available that you might also want to consider including the OptiPlex 9020[pl_2395416_price], or the OptiPlex 7020[pl_2837690_price] both from DELL which is cheaper.

If you want a desktop computer with a bigger internal memory then you might also want to consider the Acer Aspire XC-705[plb_3121374_price] (10GB) which is also cheaper.

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Specification

Processor
Processor Core
Processor Family
Processor Clock Speed
PCI Express Slots Version
Processor Thread
System Bus Data Transfer Rate
Processor Cache Level
Processor Cache
Processor Socket
Maximum Turbo Frequency
Processor Model
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
Processor Series
Tcase
PCI Express Lane (maximum)
Stepping
Processor Operating Mode
PCI Express Configuration
Processor Codename
Processor Lithography
Thermal Design Power (TDP)
Bus Type
Processor Cache Type
Processor Installed
Memory
Internal Memory
Non-ECC Memory
Memory Clock Speed
Memory Slot
Memory Layout
Maximum Internal Memory
Internal Memory Type
Storage
Total Storage Capacity
Storage Medium
Hard Drive Capacity
Hard Drive Speed
Hard Drive Interface
Hard Drive
Storage Drive
Storage Drive Installed
Optical Drive
Optical Drive
Optical Drive Type
Graphics
On-Board Graphics Adapter Model
Discrete Graphics Adapter
Discrete Graphics Adapter Memory
Discrete Graphics Memory Type
Discrete Graphics Adapter Model
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/software
Operating System
Trial Software
Operating System Language
Operating System Architecture
Networking
WiFi Standard
WiFi
Cabling Technology
Ethernet LAN Data Rate
Ethernet LAN Connection
Ports & Interfaces
S/PDIF Out Port
Headphone Out Port
Microphone in Port
Line-Out Port
Line-In Port
DC-In Jack
Ethernet LAN (RJ-45) Port
HDMI Port
USB 3.0 Port
USB 2.0 Port
USB 3.0 (3.1 Gen 1) Type-A Port
Design
Case Placement
Case Colour
Performance
Password Protection
Audio Output Channel
Audio System
Motherboard Chipset
Product Type
Processor Special Features
Intel Anti-Theft Technology
Intell Identity Protection Technology
Intel My WiFi Technology
Intel Quick Sync Videotechnology
Intel Turbo Boost Technology
Intel Wireless Display (WiDi) Technology
Intel 64
Embedded Options Available
Enhanced Intel SpeedStep Technology
Intel Secure Key
Intel AES New Instructions
Intel FDI Technology
Idle States
OS Guard
Intel Insider
Intel Clear Video HD Technology
Thermal Monitoring Technology
Execute Disable Bit
Intel InTru 3D Technology
Intel VT-X With Extended Page Tables (EPT)
Intel Virtualization Technology (VT-X)
Instruction Set
Intel Enhanced Halt State
Processor Code
Scalability
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
Graphics & IMC Lithography
Intel Smart Cache
Intel Secure Key Technology Version
Processor ARK ID
Power
Power Supply Input Voltage
Power Supply Input Frequency
Weight & Dimensions
Weight
Height
Depth
Width
Operational Conditions
Storage Temperature Range
Non-Operating Altitude
Operating Altitude
Relative Humidity Operating Range
Operating Temperature Range
Packaging Content
Software Driver Included
Manual
Cable Included
Mouse Included
Keyboard Supplied
Other Features
Intel Virtualization Technology
Technical Details
Intel Visual Technology

1 Award

hothardware.com Editor's Choice

Expert Reviews

(14)
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...

18 November 2014

The Alienware X51-R2 small-form-factor gaming desktop offers respectable gaming performance at a reasonable price...

Alienware is no stranger to making over the top gaming PCs, and its smallest offering, the X51, continues the trend with bright LEDs and an out-of-this-world looking chassis. The second generation... Read more…

27 August 2014

Chris Burns Here in the late Summer of 2014 we're having a look at a gaming PC from Alienware that's continuing to aim for console-beating power after nearly a year out in the wild. This...

« Prev 1 of 3 Next »

User Reviews

(5)
Reviewed 9 November 2011 by Kyle

Ok so 40Gb might not be a huge amount of space this day and age but for use as a boot hard disk it's perfect and my system has never been as quick as this before. Fantastic price, fantastic... Read more…

Very good price
Very easy to setup. Attach stand with thumbscrew , connect power cable, keyboard mouse. .. done
Big 1080p touchscreen, it looks like a TV display
Good way of introducing Windows 8 to users
Space saving design and light
Could become sluggish when pushed to its limits. But for the intended use (kids PC) is more than enough
Lack of USB 3.0
I would have liked an HDMI in
1 MP webcam. An extra megapixel would have help a lot
I would gladly pay not to have McAfee (McRappy) bundled
Reviewed 27 March 2015 by Tomh
Tomh would recommend the Alienware X51 R2 (Verified Purchase)

I bought this PC for small games. It outperformed in that area and works pretty stable...

Reviewed 9 March 2015 by Greg
Greg would recommend the Alienware X51 R2 (Verified Purchase)

I bought this PC for my son do Christmas. The video frame rates are outstanding for the price. Very pleased!

Reviewed 7 March 2015 by Jllav
(Verified Purchase)

Great computer for graphics & speed, but it had some issues off the bat. The USBs, DVD and sound system weren't working on day one. A couple of days later the USB worked. The DVD player doesn't... Read more…

Reviewed 14 January 2015 by GAMETIMEFUN
GAMETIMEFUN would recommend the Alienware X51 R2 (Verified Purchase)

My son loves the graphic while playing computer games. Only down fall is that it has froze on start up a few times...

Brochures and Manuals

+- Manufacturer's Description

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See How Other PCs Compare to the Alienware X51 R2

HP 800 G2 vs Alienware X51 R2

HP 800 G2 vs Alienware X51 R2
HP 800 G2
4 core Intel Core i7-6xxx 3.4GHz 16GB 1TB Hybrid-HDD
Alienware X51 R2
4 core Intel Core i5-4xxx 3.2GHz 8GB 2TB HDD
£ 898.80 £538.80
Vastly Newer Intel TSX-NI Version
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4x Lighter
Significantly Shorter
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Expert Review Rating is Moderately Worse

HP Z230 vs Alienware X51 R2

HP Z230 vs Alienware X51 R2
HP Z230
4 core Intel Xeon E3 v3 3.5GHz 8GB 1TB HDD
Alienware X51 R2
4 core Intel Core i5-4xxx 3.2GHz 8GB 2TB HDD
£ 1,001.52 £538.80
Newer Intel Stable Image Platform Program (SIPP) Version
Vastly Newer Intel TSX-NI Version
Considerably Better User Reviews
Four More USB 2.0 Ports
Smaller Total Storage Capacity
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DELL 3650 vs Alienware X51 R2

DELL 3650 vs Alienware X51 R2
DELL 3650
4 core Intel Core i7-6xxx 3.4GHz 16GB 2TB HDD
Alienware X51 R2
4 core Intel Core i5-4xxx 3.2GHz 8GB 2TB HDD
£ 594.00 £538.80
Vastly Newer Intel Stable Image Platform Program (SIPP) Version
1 Newer Intel TSX-NI Version
Four USB 2.0 Ports
Bigger Max Internal Memory Supported Processor
Significantly Smaller Discrete Graphics Adapter Memory
Only Two USB 3.0 (3.1 Gen 1) Type-A Ports
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