Alienware X51 R3: Recommended
“It’s an impressive system that’s been built with all the care and attention I would expect from an experienced company.” — Wolf's Gaming Blog
Pro-level gaming is yours.
Choose cutting-edge liquid cooling.
Get into 4k gaming.
When you add the graphics amplifier to the compact X51, you’ll have more options when it comes to arranging your desk. You don’t need much space, so you can place this duo where you want it.
Even without the amplifier, X51 delivers exceptional gaming performance at 1080p and supports up to an NVIDIA® GeForce® GTX 960 graphics card. The amp is also compatible with Alienware laptops.
With Turbo Boost Technology, your processor runs faster when you need it to and saves battery when you don’t. And Hyper-Threading Technology increases performance on multi-threaded tasks so you can run various programs more smoothly. The X51’s entire engine has been overhauled since the last generation, now built on a foundation that’s based on the Intel Z170 Chipset and the latest DDR4 memory.
Fast PCIe SSDs and substantial storage.
And with PCIe SSDs, all those games, tunes and other media you love will load way faster with up to 4GB/s of total bandwidth.
Ports for all your peripherals.
1. HDMI 1.4 Output | 2. SuperSpeed USB | 3. Hi-Speed USB | 4. RJ-45 Gigabit Ethernet | 5. Alienware Graphics Amplifier Port | 6. SuperSpeed USB 10 Gbps | 7. Front Speaker Input | 8. Side Speaker Input | 9. AC Power Input | 10. Center/Subwoofer Speaker Input | 11. SuperSpeed USB | 12. Microphone In | 13. Headphone Out
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.)
Win with Windows 10
Expand your community: Xbox app lets you see what your friends are playing now, chat with your community, and track your scores and achievements. Plus, Game DVR* lets you record your best hero moves for sharing with friends.
Play more games: The greatest Xbox games are now at your fingertips, and you will get built-in support for the Xbox controller and even stream Xbox One games to a Windows 10 PC, laptop, or tablet anywhere in your home. Even the cross-device barriers are down – start a game on your PC and move to your Xbox to continue playing.
Start menu – back and improved: You will game 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 so there’s no buffer between you and your game. Even your updates reach you as soon as they are available so you always have the latest and greatest features.
Command Center 4.0
Convenience comes standard.
If you run into an issue and our technical experts cannot resolve the issue remotely, a field support engineer will come to you, usually within 1-2 business days. Never lose productivity with hardware support that is available when you need it, where you need it .
Alienware Respawn offers flexible, automated backup and recovery to ensure your important document, pictures and media files remain safe.
Dell support saves time and reduces hassle with valuable warranty information and services.
Essential accessories for your Alienware X51
Look for these additional services at checkout:
Includes In-Home Service after Remote diagnosis*, plus Premium Phone Support, offering 24/7 access to dedicated Alienware advanced support technicians for hardware and software assistance, including in-game repairs and troubleshooting.
1-4 Years Accidental Damage Service*
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.
Awards & Reviews
Alienware X51 R3: Recommended
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