Alienware X51 AX51R3-1510BLK Desktop Review

February 1, 2016
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Alienware X51 AX51R3-1510BLK, there’s a lot of powerful components inside I must say. The desktop has a Core i5 processor for the delight of power users and a huge terabyte drive to store all the data in the world. But the computer is not 100% great, let me tell you what I think about it below…

The good

Backbone of Alienware X51 AX51R3-1510BLK, the Intel Core i5-6400 processor, is a very decent one. Most importantly, it’s a new Skylake-based (6th generation) model so performance is not an issue. Indeed, the unit offers all four cores at your disposal, and clock speed is 2.7GHz and turbo equally high 3.3GHz. The CPU Mark score is ~6500, quite strong, although the Intel’s flagship i7s get around 8000. Nonetheless, the i5-6400 is good for power and casual users alike.

The desktop features 8GB DDR4 (2133MHz) memory, it’s a solid amount for most, including gamers. The motherboard has space for two memory sticks, the maximum being 32GB as DDR4 supports single 16GB modules.

Connecting to networks and Internet should be easy, there’s a Gigabit RJ-45 port for cables and dual-band 2×2 802.11ac WiFi + Bluetooth 4.0 card for wireless.

There’s an integrated 7.1 channel audio for hooking up some speakers, headphones and subwoofer.

Video outputs include VGA, DVI-D and HDMI (all on the graphics card), those are sufficient for connecting up to three monitors simultaneously.

For such a small size desktop, the Alienware features a lot of USB ports: two USB 3.0 in the front and two USB 2.0, two USB 3.0 and two USB 3.1 in the back.

The neutral

It is true that Alienware X51 AX51R3-1510BLK features a dedicated graphics. But the card is not top-notch, it’s the mid-range GeForce GTX745 with 4GB DDR3 of its own memory. Comparing it to others, the GTX745 gets ~2150 points in G3D Mark benchmark while GTX960 receives closer to 6000. So in real life, you need to watch those settings and resolution. Using high and 1080p on GTA 5 should give around 40FPS, however games like League of Legends and Counter-Strike: Go are smooth as a silk on maxed out settings.

You can replace the graphics card, at least in theory, because you need to remember the case is small – 13.5 x 3.75 x 12.5 inches HxWxD. Dimensions for the current GTX 745 card are: single width, 5.7″ length and 2.7″ height. Also the PSU is either 240W or 330W, most likely that needs to changed too.

The storage solution is a “blast from the past” 1TB 7200RPM SATA 3 hard drive. Giving you a lot of space for sure, it’s not the perfect choice if you want good transfer speeds. But don’t worry, there’s a free 2.5″ slot inside so installing an SSD is a piece of cake. Just remember no M.2 slots are available.

The bad

There is no media card reader included in Alienware X51 AX51R3-1510BLK, but I don’t think this a big deal for many people. You can use the integrated DVD burner to transfer data locally.

Well, it’s rather common, but also this model does not include a monitor – you must get the display separately. Keyboard and mouse are included.

There doesn’t seem to be built-in speakers, so you need to get external ones (or headphones) if you want to hear any sounds from this.


Alienware X51 AX51R3-1510BLK is a good all-around desktop for the power user minded. I can’t think of any software that would not run here, also many games can be played if not all of them on ultra settings. A positive thing, the desktop has a cool design, I bet placing it in a visible place would not look out of place. It’s a bit expensive model for sure, but if you have the money and drive to buy a powerful computer, then choosing this Alienware would be something to think about.

Not interested? Take a look at these desktops:

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