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...
Available from international sellers only
We last saw a price for the Alienware X51 R2 three weeks ago which was £539.99
Tell Me When It Becomes Available
You are subscribed to price alerts for this product Unsubscribe
This PC supports a 32-bit|64-bit processor operating mode, which is the most frequently supported processor operating mode on medium processor core computers that have been around for around the same time as it.
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 personal computer. Most of the other desktop computers of a comparable age and spec to the X51 R2 have between one and eight USB 3.0 (3.1 Gen 1) Type-A ports.
Quite Big Hard Drive Capacity
The average hard drive capacity of computers of a similar spec and age to the X51 R2 is 860GB. With a hard drive capacity of 2,000 gigabytes, the Alienware X51 R2 has one of the bigger hard drive capacity amongst similar spec desktop computers of this age.
Quite Big Total Storage Capacity
With a total storage capacity of 2,000 gigabytes, the Alienware X51 R2 has a quite big total storage capacity compared to most of the other medium processor core computers that are a similar age to the X51 R2. The smallest total storage capacity of PCs that are a comparable age to the X51 R2 is 4GB and the biggest is 3.6TB.
Fairly Big Internal Memory
Across all the personal computers of a similar age and spec to the X51 R2 the internal memory range from 2GB to 64GB, and the average internal memory is 7.8GB. The Alienware X51 R2 has one of the bigger internal memory (16 gigabytes) amongst personal computers of this age.
Alienware Computers Have Good Reviews
We checked 149 owner and expert reviews for Alienware personal computers and found that on average Alienware has good ratings compared to other brands. We also found that Alienware has good ratings specifically within its medium processor core computers range.
+9 More reasons for
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 medium processor core computers that have been available for around the same time as it.
3 PCI Express Slots Version
This personal computer supports a 3 PCI Express slots version, which is typical of many computers of a similar type and age to it.
L3 Processor Cache Level
This personal computer has a L3 processor cache level, which is typical of many computers of this age and spec.
Six USB 3.0 Ports
The Alienware X51 R2 is a six USB 3.0 port computer.
Three Storage Drives
The Alienware X51 R2 is a three storage drive computer. Most of the other PCs that came out around the same time as the X51 R2 have between one and five storage drives.
The lightest medium processor core computer that has been available for around the same time as the X51 R2 is 38g heavy, the heaviest is 23kg, and the average weight is 7.6kg. At only 5.5 kilograms, the Alienware X51 R2 is fairly light compared to most of the other similar spec personal computers that have been available for more than a year.
GDDR Discrete Graphics Memory Type
This desktop computer supports a GDDR5 discrete graphics memory type, which is typical of many medium processor core computers that were launched around the same time as it.
The Alienware X51 R2 is fairly narrow (only 95 millimeters) compared to most of the other medium processor core computers that were launched more than a year ago. The widths of medium processor core computers that were released one year ago range from 33mm to 510mm.
9 Reasons Against
Quite Slow On-Board Graphics Adapter Dynamic Frequency
At only 1,100 megahertz, the Alienware X51 R2 has a fairly slow on-board graphics adapter dynamic frequency compared to most of the other PCs of a comparable spec and age to the X51 R2. The on-board graphics adapter dynamic frequencies of PCs that were released around the same time as the X51 R2 range from 700MHz to 1,300MHz.
Only HDD Storage Medium
The storage speed of this desktop computer is HDD, which is the most frequently found storage medium on computers that have been available for a comparable time 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.
If the storage speed of this computer is too slow for you then you might also want to look at the Fujitsu W530 (£1,035.64) (SSD).
Only 11 On-Board Graphics Adapter DirectX Version
This desktop computer supports a 11.1 on-board graphics adapter DirectX version, which is typical of many similar spec desktop computers that have been available for more than a year.
Only Has One Memory Slot
The number of memory slots found on the Alienware X51 R2 is more than most comparable spec computers that have been on the market for more than a year. The most commonly 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 personal computer.
+6 More reasons against
Only Two USB 2.0 Ports
Most desktop computers of this spec and age have between one and nine USB 2.0 ports, including the Alienware X51 R2 which has two USB 2.0 ports.
Very Small Maximum On-Board Graphics Adapter Memory
Across all the medium processor core computers that are a similar age to the X51 R2 the maximum on-board graphics adapter memories range from 1GB to 64GB. The Alienware X51 R2 has a fairly small maximum on-board graphics adapter memory (only 1.024 gigabytes) compared to most of the other medium processor core computers that have been on the market for a similar time to the X51 R2.
Very Small Maximum Internal Memory
With a maximum internal memory of only 16 gigabytes, the Alienware X51 R2 has one of the smaller maximum internal memory amongst similar spec computers of this age. Medium processor core computers that have been available for around the same time as the X51 R2 have maximum internal memory of between 2GB and 520GB.
Quite Small Processor Cache
The smallest processor cache of personal computers of this age and type is 2MB and the biggest is 10MB. At only 6 megabytes, the Alienware X51 R2 has a quite small processor cache compared to most of the other medium processor core computers that have been on the market for around the same time as the X51 R2.
Only Four Processor Threads
The Alienware X51 R2 is a four processor thread computer.
2 Other reasons to consider the Alienware X51 R2
Released Over a Year Ago
Alienware released the X51 R2 over a year ago.
Average Processor Clock Speed
At 3.2 gigahertz, the Alienware X51 R2 has a pretty typical processor clock speed compared to most of the other similar spec desktop computers that came out more than a year ago.
Intel Core i5, Intel Core i5-4xxx
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
2 x 8
Maximum Internal Memory
Internal Memory Type
Total Storage Capacity
Hard Drive Capacity
Hard Drive Speed
Hard Drive Interface
Serial ATA, Serial ATA II, Serial ATA III
Optical Drive Type
On-Board Graphics Adapter Model
Intel HD Graphics, Intel HD Graphics 4600
Discrete Graphics Adapter
Discrete Graphics Adapter Memory
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
Windows 8, Windows 8.1
MS Office, McAfee Live Safe
Operating System Language
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
Horizontal, Horizontal/Vertical, Vertical
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
Embedded Options Available
Enhanced Intel SpeedStep Technology
Intel Rapid Start Technology
Intel Small Business Advantage (SBA)
Intel Secure Key
Intel AES New Instructions
Intel FDI Technology
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)
AVX, AVX 2.0
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
Graphics & IMC Lithography
Intel Smart Cache
Intel Secure Key Technology Version
Processor ARK ID
Power Supply Input Voltage
100 - 240
Power Supply Input Frequency
Weight & Dimensions
Storage Temperature Range
-10 - 45
-15.2 - 10668
-15.2 - 3048
Relative Humidity Operating Range
20 - 80
Operating Temperature Range
10 - 35
Software Driver Included
Intel Virtualization Technology
Intel Visual Technology
Intel Clear Video HD, Intel Insider, Intel InTru 3D, Intel Quick Sync Video