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intel® core™ processors

Alienware X51

Total versatility. Endless possibility.

All the power you want in any room you choose. Connect to your monitor or big screen TV and enjoy full PC gaming performance.
Starting At £549
Includes VAT & Shipping
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4th Generation Intel® Core™ i3-4150 processor (2-cores,3MB Cache, up to 3.5GHz)
Operating System
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Windows 8.1 (64Bit) English
Alienware X51 R2 Standard Base
Video Card
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NVIDIA(R) GeForce(R) GTX 745 with 4GB DDR3
6GB (1X2GB/1X4GB) 1600 MHz DDR3 Non-ECC
Hard Drive
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1TB (64MB Cache) 7200 RPM SATA 6Gb/s
No Monitor
Optical Drive
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Slot-Loading Dual Layer DVD Burner (9.5mm)
DW1506 Wireless-N WLAN Half Mini-Card
UK/Irish (QWERTY) Alienware Multimedia Keyboard
Alienware Standard Optical Mouse
Productivity Software
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Microsoft® Office 2013 Trial, MUI
Security Software
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Anti-virus not included
Add a Tablet
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1 Year NBD with Premium Phone Support
Accidental Damage Support
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No Accidental Damage Protection
Memory Slots
2x 240-Pin DDR3 SDRAM Slots


External Chassis Connections

(2x) SuperSpeed USB 3.0
(1x) Microphone In
(1x) Headphone/Speaker Out

(1x) On-board HDMI 1.4 Output
(1x) RJ-45 Gigabit Ethernet
(2x) Hi-Speed USB 3.0
(4x) SuperSpeed USB 3.0
(1x) Front Left/Right Speakers
(1x) Center Speaker
(1x) Rear Left/Right Speakers
(1x) Side Left/Right Speakers
(1x) SPDIF Digital Output (TOSLINK) (1x) SPDIF Digital Output (Coax)

Internal Chassis Connections
(3x) SATA 6.0Gb/s Ports
Intel® H61 Express Chipset with 3rd Generation Processors (Standard)
Intel® H87 Express Chipset with 4th Generation Processors

Color Options
Matte Stealth Black with Dark Chrome Accents (Standard)

Dimensions & Weight
Height: Front: 13.504" - (343mm) Rear: 12.54" - (318.5mm)
Depth: 12.52" - (318mm)
Width: 3.74" - (95mm)
Starting Weight: 12.1 lbs - (5.49 Kg.)

Motherboard Class
Mini-ITX Motherboard

Alienware™ 240 Watt Power Supply (Standard)
Alienware™ 330 Watt Power Supply

Processor Cooling
Alienware™ High-Performance Air Cooling


Alienware Command Center

Alienware X51

Original Price£598.99
Instant Savings£50.00
Includes VAT & Shipping
E-Value Code:

Features & Design

Available with Windows 8 - for a smooth, versatile PC experience.
Alienware X51

Virtual design for virtually any space

Mind-blowing visuals and sound

Expansive experience

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 you want it.

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Gaming, films and other images jump off the screen with the powerful NVIDIA® graphics, Full HD, 3D and Blu-ray capabilities of the Alienware X51. For those seeking a system that can handle high-performance video and audio content creation, look no further than Alienware X51.

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Play your way, now and in the future. With WiFi and ample front and rear I/O ports (including a total of 8 USB ports), the Alienware X51 is engineered to help you customise your gaming and entertainment experience. And the ability to upgrade key components means that your X51 will help you dominate games well into the future.

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Alienware X51
Victory is yours
The key to any victory is preparation. With the Alienware X51 you can have the high-performance 4th Gen Intel® Core™ processors, graphics and storage that you need to overwhelm your opponents now and into the future.

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Alienware X51
Gaming and more
The Alienware X51 is a powerful PC ready to not only take on your fiercest gaming challenges, but whatever else comes your way. Email, shopping and social networking are a breeze on the X51. Choose between Windows and Ubuntu operating systems to manage your system your way.

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Ultimate control. All from one place.
Take control of the game. And feel the intensity. The redesigned Alienware Command Centre 3.0 lets you choose lighting and special effects, accelerate your gaming performance, monitor in-game results and more - all in one hub.
Alienware X51
Launch games your way with personalised shortcuts in Game Mode, maximise performance with the new Accelerator feature, and keep an eye on resource consumption with Performance Monitoring.

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Alienware X51
AlienFX system lighting
Create customised lighting and special effects to suit your unique gaming style. Apply 20 different colours to three different zones for 8,000 colour combinations.

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Alienware X51
Access your system's power-management controls so that you can decide when you need maximum performance or when to scale back for more everyday programs.

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Expect more with
• Smart Selection: Pre-built systems ready to be delivered to you in as little as 24 hours. Learn More

• Flexible financing: Make the most of our affordable payment options. Learn More

• Convenient Shopping: Get free and expert advice to find the perfect system for your needs. Learn More

• Expert help: Award-winning service is a given as we offer the UK's Best Support. Learn More

Alienware X51
My Dell for your peace of mind
My Dell for your peace of mind
My Dell is an easy-to-use support tool that consolidates the information you need about your PC.

Proactive: Advice and alerts let you know about issues before they happen, and tools to fix them if they arise.

Simple: Get easy access to Dell support, warranty information and services to help you save time and reduce hassle.

Trustworthy: Dell Back-up and Recovery provides flexible, automated backup and recovery to ensure your precious pictures, music and files remain safe. This  feature is accessible through the My Dell interface.
Your content. Anywhere, anytime.
Put your stuff in Dropbox and get to it from any device. Dropbox lets you edit docs, share photos, and show off videos from anywhere. Even if something happens to your PC, your stuff is always safe in Dropbox. Get 20GB of Dropbox space included for a year with your purchase of a new Dell PC.*

*Dell consumer PC or select Venue tablets


Alienware X51
First generation vs. New Alienware X51 Gaming Performance
The chart above shows how far the performance has evolved on the Alienware X51 from its first generation launch on January 2012 to the current generation. Using 3DMark 2011 Extreme as a benchmark, you can see how the overall gaming performance has increased by up to 467%.
Alienware X51
We've taken some of the key configurations offered and collected the 3DMark Vantage CPU benchmark scores and 3DMark for Windows Fire Strike scores to show a comparison of how increases in performance by configuration with a focus on CPUs and GPUs, respectively.
Alienware X51
Using some of the major titles out there today, like Bioshock Infinite and Tomb Raider, we were able to use their built-in benchmark tools to measure how many frames per second the Alienware X51 can generate using the key configurations. Even with our lowest end configuration, the Alienware X51 can produce up to 41 frames per second at a resolution of 1920 x 1200.

Accessories & Support

Essential accessories for your Alienware X51
Essential accessories for your Alienware X51
Complete your Alienware X51 with any combination of Alienware TactX™ accessories and Alienware Vindicator bags designed to enhance and protect your gaming experience. Look for these great products and more at the checkout.
Alienware TactX™ Mouse
Alienware TactX™ Mouse
Featuring AlienFX customisable lighting and on-the-fly DPI switching for pin-point accuracy.

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Alienware TactX™ Headset
Alienware TactX™ Headset
Experience optimised in-game sounds with a custom-engineered soundscape and a retractable mic.

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Alienware TactX™ Keyboard
Alienware TactX™ Keyboard
Be battle-ready with programmable macro keys and exclusive AlienFX™ customisable lighting for two zones.

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Your Alienware X51 comes with the following great support cover included
One year Premium Phone Support with Gaming Support
Advanced phone support for hardware and software issues, including in-game repairs and troubleshooting. This
service provides you with access to advanced technicians and faster call answering times than standard phone support. You can count on us for a great experience and rapid support

One year Next Day In-Home Service
For added convenience, if your PC’s issue cannot be resolved remotely, we will send a Dell-certified technician to your home within 1 business day.
Services and Support Video
Look out for these additional Services at checkout
Accidental Damage Protection

Let us repair or replace your system in the event of an accident. Accidental Damage service covers surges and screen breaks, liquid spills, accidental drops and falls.

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Ratings & Reviews


Drivers, Manuals & Support

Product Support
Product Support
From drivers and manuals to diagnostic tools and replacement parts, Dell Product Support has you covered.

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