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 computer supports a 32-bit|64-bit processor operating mode, which is typical of many medium processor core PCs that have been around for more than a year.
Quite Fast On-Board Graphics Adapter Dynamic Frequency
The Alienware X51 has a fairly fast on-board graphics adapter dynamic frequency (1,200 megahertz) compared to most of the other comparable spec desktop computers that are a similar age to the X51. Medium processor core PCs that are a comparable age to the X51 have on-board graphics adapter dynamic frequencies of between 640MHz and 1,300MHz.
Six USB 3.0 (3.1 Gen 1) Type-A Ports
Most PCs that are a comparable age to the X51 have between one and seven USB 3.0 (3.1 Gen 1) Type-A ports, including the Alienware X51 which has six USB 3.0 (3.1 Gen 1) Type-A ports.
Fairly Big Discrete Graphics Adapter Memory
At 4,096 gigabytes, the Alienware X51 has a quite big discrete graphics adapter memory compared to most of the other medium processor core PCs that have been on the market for around the same time as the X51. The smallest discrete graphics adapter memory of similar spec computers that came out around the same time as the X51 is 1GB and the biggest is 8.2TB.
Alienware Personal Computers Have Good Reviews
Based on 306 expert and owner reviews, Alienware has good reviews for its desktop computers. Alienware also has good reviews specifically for its medium processor core PCs.
Fairly Fast Processor Clock Speed
The slowest processor clock speed of medium processor core PCs that are a similar age to the X51 is 1.3GHz and the fastest is 4GHz. At 3.6 gigahertz, the Alienware X51 has a fairly fast processor clock speed compared to most of the other computers that have been around for around the same time as the X51.
+13 More reasons for
Quite Big Internal Memory
At 16 gigabytes, the Alienware X51 has a fairly big internal memory compared to most of the other comparable spec personal computers that were launched around the same time as the X51. Medium processor core PCs that were released one year ago have internal memory of between 2GB and 64GB, and the average internal memory is 8GB.
3 PCI Express Slots Version
This PC supports a 3 PCI Express slots version, which is typical of many personal computers that have been on the market for a comparable time to it.
L3 Processor Cache Level
This desktop computer has a L3 processor cache level, which is typical of many medium processor core PCs that have been on the market for a similar time to it.
Quite Fast Maximum Turbo Frequency
The maximum turbo frequencies of computers of a comparable spec and age to the X51 range from 1.8GHz to 4.4GHz. The Alienware X51 has a quite fast maximum turbo frequency (4 gigahertz) compared to most of the other medium processor core PCs that were released one year ago.
10/100/1000Base-T(X) Cabling Technology
This computer has a 10/100/1000Base-T(X) cabling technology, which is the most commonly found cabling technology on medium processor core PCs that are a comparable age to it.
Six USB 3.0 Ports
Most desktop computers that have been on the market for more than a year have between one and seven USB 3.0 ports, including the Alienware X51 which has six USB 3.0 ports.
Eight Processor Threads
The Alienware X51 is a eight processor thread desktop computer.
Fairly Big Processor Cache
The Alienware X51 has one of the bigger processor caches (8 megabytes) amongst desktop computers of this age. The smallest processor cache of desktop computers of a similar spec and age to the X51 is 2MB and the biggest is 10MB.
7.1 Audio Output Channel
The Alienware X51 has a better audio output than most medium processor core PCs that have been on the market for a similar time to it. This personal computer has a 7.1 audio output channel, whereas most comparable spec personal computers that have been available for a similar time to it have a 5.1 audio output channel. Across all medium processor core PCs that have been available for more than a year the audio output ranges from 5.1 to 8.1.
GDDR Discrete Graphics Memory Type
This PC supports a GDDR3 discrete graphics memory type, which is the most frequently supported discrete graphics memory type on medium processor core PCs that were launched around the same time as it.
With a weight of 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 average weight of medium processor core PCs that have been available for a comparable time to the X51 is 7.7kg, and the weights range from 38g to 100kg.
The narrowest desktop computer of a comparable age and type to the X51 is 33mm wide and the widest is 510mm. The Alienware X51 is one of the narrower medium processor core PCs that were released around the same time as the X51 (only 95 millimeters) amongst similar spec personal computers of this age.
4 Reasons Against
Only HDD Storage Medium
The storage speed of this desktop computer is HDD, which is typical of many PCs of a comparable 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.
Only 11 On-Board Graphics Adapter DirectX Version
This desktop computer supports a 11.1 on-board graphics adapter DirectX version, which is the most commonly supported on-board graphics adapter DirectX version on personal computers of a similar age and spec to it.
Only Has One Memory Slot
The number of memory slots found on the Alienware X51 is more than most medium processor core PCs that were launched 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 desktop computer.
Only Two USB 2.0 Ports
The Alienware X51 is a two USB 2.0 port desktop computer.
+1 More reason against
3 Other reasons to consider the Alienware X51
Released Over a Year Ago
This desktop computer was released over a year ago.
Average Hard Drive Capacity
At 1,000 gigabyte, the Alienware X51 has a fairly average hard drive capacity compared to most of the other medium processor core PCs that have been on the market for more than a year.
Average Total Storage Capacity
At 1,000 gigabyte, the Alienware X51 has a pretty standard total storage capacity compared to most of the other PCs of this type and age.
+1 Other reason
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
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
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
Storage Drive Installed
Integrated Card Reader
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
NVIDIA GeForce GTX 745
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
Operating System Language
Operating System Architecture
Ethernet LAN Data Rate
10, 10, 100, 10, 100, 1000
Ports & Interfaces
Headphone Out 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
Compatible Processor Series
Core i3, Core i5, Core i7
Processor Special Features
Intel Smart Connect Technology
Intel Smart Response Technology
Intel Rapid Start Technology
Intel Small Business Advantage (SBA)
Thermal Monitoring Technology
AVX, AVX 2.0, SSE, SSE4.1, SSE, SSE4.2
Intel Small Business Advantage (SBA) Version
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 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
McAfee Live Safe 1YR
Intel Virtualization Technology
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…