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.
Includes Premium Phone Support
Available with Windows 8 — designed for a smooth, versatile PC experience.
Virtual design for virtually any spaceEasily 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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Mind-blowing visuals and sound
Gaming, movies 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 (input/output) ports (including a total of up to eight USB ports), the Alienware X51 is engineered to help you customize your gaming and entertainment experience. And the ability to upgrade key components means your X51 will help you dominate games well into the future.
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Victory is yoursThe key to any victory is preparation. With the Alienware X51 you can have up to the high performance of 4th Gen Intel® Core™ processors, graphics and storage you need to overwhelm your opponents now and into the future.
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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.
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Ultimate control. All from one place.
Complete your Alienware X51 experienceYour 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.
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Processor Help Me Choose
- 4th Generation Intel® Core™ i3-4150 processor (2-cores,3MB Cache, up to 3.5GHz)
- 4th Generation Intel® Core™ i5-4460 processor (4-cores, 6MB Cache, up to 3.4GHz w/Intel Turbo Boost
- 4th Generation Intel® Core™ i7-4790 processor (4-cores,8MB Cache, up to 4.0GHz w/Intel Turbo Boost)
Operating SystemHelp Me Choose
- Windows® 7 Home Premium (64 BIT) English
- Windows 8.1 (64Bit) English
Hard Drive Help Me Choose
- 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
- NVIDIA(R) GeForce(R) GTX 745 with 4GB DDR3
- AMD Radeon™ R9 270 with 2GB GDDR5
- NVIDIA® GeForce® GTX 760Ti 2G GDDR5
- DW1506 Wireless-N WLAN Half Mini-Card
- Dell Wireless 1550 (2x2 11ac combo with Bluetooth)
- 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)
External Chassis ConnectionsFront
(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
- Memory Slots
2x 240-Pin DDR3 SDRAM Slots
Intel® H61 Express Chipset with 3rd Generation Processors (Standard)
Intel® H87 Express Chipset with 4th Generation Processors
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.)
Alienware™ 240 Watt Power Supply (Standard)
Alienware™ 330 Watt Power Supply
Alienware™ High-Performance Air Cooling
SoftwareAlienware Command Center
First generation versus new Alienware X51 gaming performanceThe chart below 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 percent.
New Alienware X51
Overall processor and graphics performanceWe'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.
|Scaled 3DMark Vantage CPU score||Scaled 3DMark for Windows Fire Strike graphics test|
Real-time in-game performanceUsing 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.
|Bioshock Infinite graphics settings|
|Bioshock Infinite performance in frames per second|
|Tomb Raider graphics settings|
|Tomb Raider performance in frames per second|