Alienware X51 Gaming Desktop

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Feel the thrill. Fill the room.

Compact and powerful mini gaming desktop with HD, 3D capabilities, high performance processors and graphics.

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Alienware X51 Gaming Desktop





Windows 10

Microsoft and Dell have just raised the bar. Again.

The best Windows ever meets the best Dell ever. The result? A whole new era of power, performance and productivity. Windows 10 gives you all the features you know from the world’s most popular operating system, plus great improvements you’ll love. Enhance all you do with new Windows 10 features:

Here to help - Choose a Dell PC equipped with MaxxAudio® by Waves to use Cortana*, your own personal digital assistant. Using Cortana with a Dell PC equipped with MaxxAudio by Waves gives you a natural voice interaction experience.

Start it up - You’ll feel like an expert from the get-go since your Windows Start menu is back in an expanded form.Plus, all your pinned applications will carry over so your experience is familiar, productive and better than ever.

The speed you need - Windows 10 starts up and resumes fast with InstaGo* so there’s no buffer between you and your to-do list. Even your updates reach you as soon as they are available so you always have the latest and greatest features that are built to keep up with your on-the-go lifestyle.

Stay untethered for even longer - All Windows 10 devices now have Battery Saver to automatically conserve power – so you can work longer and play harder.
Alienware X51
Versatile design. Optimal Performance.
Whether you choose to display your Alienware X51 vertically on your desk as a token of victory or horizontally to optimize your gaming space, you’ll have more than enough performance to satisfy your gaming needs.
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Mind-blowing performance, visuals, and sound
Gaming, movies and other images jump off the screen with the optional powerful NVIDIA® GeForce® GTX 960 graphics card, 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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Upgrade and customize your machine
Play your way, now and in the future. With the ability to upgrade standard desktop components, Alienware X51 is engineered to help you boost your gaming and entertainment experience at any time and dominate games well into the future. For your real-time modifications, Alienware X51 is armed with Wi-Fi and ample front and rear I/O ports (including a total of 8 USB ports ) to provide complete peripheral customization to fit your very own winning strategy. 
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Alienware X51

Victory is yours

The key to any victory is preparation. With the Alienware X51, you can now play any game you want with the high-performance 4th Gen Intel® Core™ processors, powerful graphics up to 175 W, PCI-Express x16, and storage you need to overwhelm your opponents now and into the future.

The optional GeForce® GTX™ 960 delivers incredible performance, power efficiency, and cutting-edge gaming technologies that only NVIDIA Maxwell™ technology can offer. This is the perfect upgrade to advanced gaming, letting you dominate the competition with 60% faster performance and twice the power efficiency than previous-generation cards*.

*Compared to GeForce GTX 660

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Gaming and more

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.

Bring your Alienware X51 to life with AlienFX™ and experience another level of immersion with Alienware’s exclusive in-game lighting technology that provides lighting effects to alert gamers of specific in-game events and special effects. 100+ games and apps support AlienFX™ today.

Advance in your journey with confidence when equipped with the Alienware X51 and its perfect balance of high performance and compact size.

Ultimate control. All from one place.

Take control of the game. And feel the intensity. The redesigned Alienware Command Center 4.0 lets you choose lighting and special effects, accelerate your gaming performance, monitor in-game results, and more — all in one hub.


Launch games your way with personalized shortcuts in Game Mode, maximize performance with the new Accelerator feature, and keep an eye on resource consumption with Performance Monitoring.

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Create custom lighting and special effects to suit your unique gaming style. Apply 20 different colors to 3 different zones for 8,000 color combinations.

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

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Alienware X51
Dimensions & Weight

Dimensions & Weight

Front-Height: 13.504” | Depth: 12.52” | Width: 3.74” | Starting at Weight: 12.1 lbs (5.49 Kg.)

What you need. 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

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)

Sound Card

  • Audio and Speakers
    Internal High-Definition 7.1 Performance Audio with WAVES MAXX Audio (Standard)


  • Networking and Wireless
    Integrated 10/100/1000Mbps Gigabit Ethernet NIC (Standard)
    DW 1506 802.11 b/g/n Wi-Fi Wireless LAN (Standard)


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

    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 2.0
    (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


  • Memory Slots
    2x 240-Pin DDR3 SDRAM Slots


  • Chipset
    Intel® H87 Express Chipset (Standard)

    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

    Processor Cooling
    Alienware™ High-Performance Air Cooling


    Alienware Command Center
First generation vs. New Alienware X51 Gaming Performance

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%.
Overall Processor and Graphics Performance

Overall Processor and Graphics Performance

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 performance increases by configuration with a focus on CPUs and GPUs, respectively.
Real-time In-game Performance

Real-time In-game Performance

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.
Alienware X51 - Hot Hardware - Editor's Choice Award

Editor's Choice – 4/5 Stars

“The Alienware X51 R2 delivers a premium gaming experience in a compact design that's both stylish and well-suited for the living room.”
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