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...
Available from international sellers only
Tell Me When It Becomes Available
You are subscribed to price alerts for this product Unsubscribe
This desktop computer supports a 32-bit|64-bit processor operating mode, which is the most frequently supported processor operating mode on medium processor core personal computers that have been available for more than a year.
Quite Fast On-Board Graphics Adapter Dynamic Frequency
The slowest on-board graphics adapter dynamic frequency of computers of a similar type and age to the X51 is 640MHz and the fastest is 1,300MHz. At 1,200 megahertz, the Alienware X51 has a quite fast on-board graphics adapter dynamic frequency compared to most of the other comparable spec personal computers that came out around the same time as the X51.
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.
Fairly Fast Processor Clock Speed
At 3.6 gigahertz, the Alienware X51 has a fairly fast processor clock speed compared to most of the other medium processor core personal computers that were released more than a year ago. The average processor clock speed of computers that are a similar age to the X51 is 3.1GHz.
Fairly Big Internal Memory
Across all the personal computers of this spec and age the internal memory range from 2GB to 64GB. The Alienware X51 has a fairly big internal memory (16 gigabytes) compared to most of the other comparable spec personal computers that are a similar age to the X51.
If this PC internal memory is too small for you then you might want to look at the HP 440 MT (32GB) which also has a higher rating.
SSD Storage Medium
The Alienware X51 has an SSD storage medium which is faster than the HDD storage medium found on most medium processor core personal computers that were released around the same time as 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.
This computer's storage speed (SSD) is in fact the best storage speed across all medium processor core personal computers that have been on the market for around the same time as the X51.
Across comparable types of computer the worst storage speed is HDD.
+11 More reasons for
3 PCI Express Slots Version
This personal computer supports a 3 PCI Express slots version, which is the most commonly supported PCI Express slots version on PCs of a comparable spec and age to it.
L3 Processor Cache Level
This personal computer has a L3 processor cache level, which is typical of many similar spec computers that have been around for a comparable time to it.
Quite Fast Maximum Turbo Frequency
The slowest maximum turbo frequency of personal computers of a comparable age and type to the X51 is 1.8GHz and the fastest is 4.4GHz. With a maximum turbo frequency of 4 gigahertz, the Alienware X51 has a quite fast maximum turbo frequency compared to most of the other PCs that came out around the same time as the X51.
10/100/1000Base-T(X) Cabling Technology
This personal computer has a 10/100/1000Base-T(X) cabling technology, which is typical of many computers of this age and spec.
Six USB 3.0 Ports
The Alienware X51 is a six USB 3.0 port computer.
Eight Processor Threads
The Alienware X51 is a eight processor thread desktop computer. Most of the other PCs of this age and spec only have between four and seven processor threads.
7.1 Audio Output Channel
This PC has a 7.1 audio output channel, which is the most commonly found audio output channel on desktop computers of this age and type.
GDDR Discrete Graphics Memory Type
This desktop computer supports a GDDR5 discrete graphics memory type, which is the most frequently supported discrete graphics memory type on comparable spec computers that were released around the same time as it.
The weights of desktop computers of this age and spec range from 38g to 100kg. At only 5.5 kilograms, the Alienware X51 is fairly light compared to most of the other desktop computers that are a similar age to the X51.
The widths of medium processor core personal computers that have been around for more than a year range from 33mm to 510mm. At only 95 millimeters, the Alienware X51 is fairly narrow compared to most of the other medium processor core personal computers that are a similar age to the X51.
5 Reasons Against
Alienware Only Has Unexceptional Reviews for Its Personal Computers
Average reviews across all Alienware personal computers are unexceptional, however average reviews across just Alienware's medium processor core personal computers are good.
Very Small Discrete Graphics Adapter Memory
At only 2 gigabytes, the Alienware X51 has a fairly small discrete graphics adapter memory compared to most of the other comparable spec personal computers that were released around the same time as the X51. The smallest discrete graphics adapter memory of medium processor core personal computers that have been around for around the same time as the X51 is 1GB, the biggest is 8.2TB, and the average discrete graphics adapter memory is 1.8TB.
Very Small Total Storage Capacity
The average total storage capacity of computers of this spec and age is 840GB. At only 256 gigabytes, the Alienware X51 has a fairly small total storage capacity compared to most of the other computers that are a similar age to the X51.
PCs with a bigger total storage capacity that might also be worth considering include the DELL OptiPlex 7020 SFF (£478.80) (500GB).
Only Has One Memory Slot
The Alienware X51 has a greater number of memory slots than most comparable spec computers that came out around the same time as 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.
+2 More reasons against
Only Two USB 2.0 Ports
The Alienware X51 is a two USB 2.0 port PC. Most of the other PCs of a comparable age and type to the X51 have between one and nine USB 2.0 ports.
1 Other reason to consider the Alienware X51
Released Over Two Years Ago
Alienware released the X51 over two years ago.
Intel Core i7, Intel Core i7-4xxx
Processor Clock Speed
PCI Express Slots Version
System Bus Data Transfer Rate
Processor Cache Level
Socket H3 (LGA 1150), LGA1150
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
1x16, 1x1, 2x8, 1x8, 1x8+2x4, 2x4
Thermal Design Power (TDP)
Processor Cache Type
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
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…
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…
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…
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…
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…
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…