Let your hero out
- Online discounted price HK$6,999
Unleash your inner hero with Alienware™ X51. This powerful, versatile desktop delivers an immersive HD gaming experience so you can meet any challenge.
- Operating system: Windows 8 Pro.
- Enjoy amazing visuals with desktop graphics card options, including the powerful 1GB GDDR5 NVIDIA® GeForce® GTX 555* and speedy Intel® Core™ i7-2600 processors.
- Experience big HD gaming without a big box. On its side or standing upright, it’s designed to fit any living space.
- Easily upgrade your core components to keep pace with the latest games and digital entertainment.
Accept the challenge.
Alienware X51 offers powerful digital entertainment, customization options and upgradeability in a size designed to fit any space. With a 3DMark® Vantage performance overall score of up to 15,310* and a PCMark® Vantage overall score of up to 10,531,* Alienware X51 is a system that's ready to help you face the challenge.

Alienware X51 packs options including the powerful 3rd Gen Intel® Core™ i7 processor: The brains leading you to epic new victories.
Find Out More
You've got speed.
Run several high-end applications with ease. Alienware X51 offers up to 8GB of high-performance dual-channel DDR3 memory.*
Find Out More

Release your potential.
There are always new obstacles to face and new challenges to conquer, and Alienware X51 will be with you every step of the way.A small system hides big entertainment power.
Whether standing vertically or laying horizontally, Alienware X51 turns virtually any living space into a world of high-end entertainment possibilities.
Find Out More
Build. Modify. Adapt.
With Alienware X51, desktop component upgrades are a breeze. From CPU and graphics cards to HDD and memory, you can keep your components up to date when other machines go extinct.
Find Out More
Take command of your game domain.
Alienware Command Center software features a powerful suite of customization options to make your X51 your own. Don't just play a game. Play your game.

AlienAdrenaline

AlienFX

AlienFusion
Complete your Alienware X51 experience
Your Alienware X51 is just the start. When you buy from Dell™, you can get much more than just a gaming system. You can customize an experience that's just right for you.



Processor Help Me Choose
- 3rd Generation Intel® Core™ i5-3330 Processor (3.20 GHz, 6MB Cache, with Turbo Boost Technology 2.0)
- 3rd Generation Intel® Core™ i7-3770 Processor (3.4GHz, 8MB Cache, with Turbo Boost Technology 2.0)
Operating SystemHelp Me Choose
- Windows® 7 Home Premium SP1 64 bit (English)
- Windows® 7 Home Premium SP1 64 bit (Traditional Chinese)
- Windows® 7 Home Premium SP1 64 bit Multi language
- Windows 8, Multi-Language Pre-Installed (64bit)
- Windows 8 Pro, Multi-Language Pre-Installed (64bit)
- Windows 8 Pro, Traditional Chinese (64bit)
- Windows 8, Traditional Chinese (64bit)
Memory*Help Me Choose
- 8GB Dual Channel 1600 MHz DDR3
- 16GB Dual Channel 1600 MHz DDR3
Hard Drive Help Me Choose
- Up to 1000GB* SATA hard drive
Optical Drive
- Slot-Loading Dual Layer DVD Burner (DVD+-RW, CD-RW) (Standard)
Slot-Loading Dual Layer Blu-ray Reader (BR-ROM, DVD+-RW, CD-RW)
Video CardHelp Me Choose
- 1GB GDDR5 NVIDIA® GeForce® GT 545
- 1GB GDDR5 NVIDIA® GeForce® GTX 645
- 1.5GB GDDR5 NVIDIA® GeForce® GTX 660
Sound Card
- Internal High-Definition 7.1 Performance Audio with WAVES MAXX Audio (Standard)
Ports
- Front I/O Ports
(2x) Hi-Speed USB 2.0
(1x) Microphone In
(1x) Headphone/Speaker Out
Rear I/O Ports
(1x) On-board HDMI 1.4 Output
(1x) RJ-45 Gigabit Ethernet
(4x) Hi-Speed USB 2.0
(2x) 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)
Chassis
- Physical System Dimensions
Height:
Front-Height: 13.504" (343mm)
Rear-Height: 12.54" (318.5mm)
Depth: 12.52" (318mm)
Width: 3.74" (95mm)
Starting Weight: 12.1 lbs (5.49 Kg)
Color
Matte Stealth Black with Dark Chrome Accents
Processor and Core Architecture
Processor Cooling
Alienware™ High-Performance Air Cooling
Chipset Architecture
Intel® H61 Express Chipset
Motherboard Class
Mini-ITX Motherboard
Software
Alienware Command Center
AlienAdrenaline
AlienFX™
AlienFusion
Software Personalization Options
AlienFX™ System Colors
Personal AvatarPower
Alienware™ 240 Watt Power Supply (Standard)
Alienware™ 330 Watt Power Supply
X51 Desktop