Alienware Space-51 Overview: One Tremendous-Clear Beast Of A Gaming PC

	Alienware Space-51 (2025) – Begins at $3,399, $5,699 as examined  Alienware fully revamped its traditional gaming PC with the newest high-powered {hardware} and an efficient cooling answer that takes a novel method to airflow.
	Tremendous quick {hardware} with nice efficiency Glorious cooling with quiet acoustics Spacious enclosure with trendy expandability Enticing design with RGB lighting Novel method to fan association that basically works	Excessive beginning value, even larger after upgrades Upgradeability requires add-on wiring harness RGB LEDs usually are not controllable exterior Alienware software program

Within the late 90s and early 2000s, Alienware made its identify with the Space-51. That was its flagship gaming PC rife with top-of-the-line parts, glorious efficiency, and a singular look that made it stand out from the competitors. In 2025, Alienware remains to be doing the identical factor with the Space-51. It stays a prime flight gaming PC with the most effective parts, glorious efficiency, and a singular look, however it’s additionally obtained fairly a bit extra. We’ll put it by means of its paces, see the way it performs, and resolve whether or not that is the pre-built gaming PC for you. 

Whereas this evaluate is stuffed with our typical benchmarks and evaluation, we have additionally put collectively a video evaluate under that can take you thru the Space-51 visually, discover extra gaming efficiency than what’s coated right here, and spotlight a lot of its options in movement. You may watch the video proper right here:

Alienware Space-51 (2025) Specs

Now it is time to dive into the Alienware Space-51. Our evaluate unit has an Intel Core Extremely 9 285K processor. Tha CPU provides 24 complete cores, 8 P-Cores and 16 E-Cores, and a prime Turbo enhance of 5.7 GHz and 36 MB of Intel’s Good Cache. It will possibly take as much as 250 Watts to hit these tops speeds, so the 360-millimeter closed-loop cooler contained in the Space-51 may have its work lower out for it.

The graphics card within the Space-51 is an NVIDIA GeForce RTX 5090 with 32 GB of GDDR7 reminiscence and 21,760 CUDA cores. As you may see in our GeForce RTX 5090 evaluate, it is the quickest GPU on the planet relating to gaming. Our system additionally has 64GB of dual-channel DDR5 with an XMP profile that has it operating at 6,400 MT/s with latencies clocking in at 46CL. That is truly type of excessive in comparison with many retail DDR5-6400 kits, which continuously hit as little as 30 cycles of latency, so we’ll simply need to see what sort of influence it has on efficiency.

There’s additionally a 2 TB NVMe PCIe 4.0 drive, however Alienware needs you to know that Gen5 drives are additionally accessible. Powering all of it is a 1500 W Platinum-rated ATX 12VO energy provide. For wi-fi networking, there is a Killer BE1750x that delivers Wi-Fi 7 and Bluetooth 5.4, and there is additionally a Killer 2.5 Gb Ethernet when you desire wired networking. 

Alienware Space-51 Case and Design

Whereas current Alienware Space-51 desktops have been extra mid-tower sized, the case of the brand new Space-51 is fairly giant. At 22 x 9.5 x 24 inches, it is practically as huge as a bigger ATX case just like the Fractal Design Outline 7 XL, however there is a fairly good motive for it. The entrance followers are 180mm, and there is a pair of them. There’s additionally the 360mm closed-loop cooler on the prime of the system, which provides three extra 120mm followers blowing down. And there are a few followers within the backside of the system blowing air up too.

Alienware is de facto happy with the positive-pressure cooling system within the Space-51. All the followers are consumption followers, and air naturally exhausts out the again. The corporate says the system can run as much as 45% quieter throughout graphics-intensive duties (so we’re speaking peak noise ranges) whereas pushing 25% extra air than every other Alienware desktop launched within the final three years. The stable tempered glass facet panel ensures that warmth goes straight to the again, as that is the one escape route. 

Regardless of the dearth of an exhaust fan (which Alienware reps informed us truly impede air circulation at low RPMs) we may put our hand behind the system and really feel the heat waft out the rear. On the highest surrounding the cooler is a gasket system that forestalls air from escaping upwards, and so it must be compelled out the rear. It really works so nicely it is obtained me reconsidering my very own setup. Additionally word, that optimistic stress within the system means no mud will probably be sucked into random openings within the chassis, so the internals ought to stay cleaner than many methods, for longer intervals.

To make this all work with a stable case entrance, there is a huge hole between the entrance panel and the entrance followers. The followers could possibly be starved off of air in any other case, which is why mesh is so widespread lately. Alienware as a substitute selected to maintain the stable entrance, however to place a 30-millimeter hole on either side. That could be a kind of best-of-both-worlds method which retains direct noise to a minimal, however lets loads of air in. Something smaller than 30mm, Alienware says, and the entrance followers begin to trigger a wind tunnel that would end in bizarre noises, starved followers, or each. 

Alienware Space-51 Connectivity and Repairability

On the rear of the Space-51, we are able to discover 4 USB-C ports, two of that are Thunderbolt 4 and the opposite two are 10Gbps USB 3.2. Beneath that sit 5 USB 2.0 Sort-A ports, two of which assist fast charging, and a single 5Gbps USB 3 port. At first it struck us as type of odd to have a single high-speed Sort-A port, however aside from a USB 3 onerous drive for backup, there’s not a lot motive. The quicker 10Gbps or Thunderbolt ports can deal with the rest. These Sort-A ports are helpfully blocked collectively, subsequent to the two.5 Gbps Ethernet port. Digital S/PDIF optical output, analog line in, and analog line out full the port array. 

The highest entrance of the system additionally has a pair of USB 3 5Gbps Sort-A ports and two USB 3.2 10Gbps Sort-C ports. Lastly, there’s analog enter for a microphone and headphone output for a headset. 

Transferring down the again, the GeForce RTX 5090 has one HDMI 2.1 port and a trio of DisplayPort ports that would deal with the beastly 4K 240 Hz QD-OLED show that we acquired on mortgage to assist check the Space-51. Transferring down farther we are able to lastly arrive to the Wi-Fi/Bluetooth antenna posts and the facility provide’s enter. 

The Space-51 makes use of industry-standard type issue parts. Apart from the standard DDR5 DIMM slots (there are solely two, since including greater than that usually leads to decreased speeds and worse efficiency) and M.2 SSDs, it additionally means an ATX type issue motherboard and an ATX 12VO energy provide. Which means if sometime out of guarantee, an influence provide dies otherwise you wish to improve the system with a brand new platform and motherboard, the Space-51 is as much as the duty. Earlier Space-51 methods through the years have used uncommon non-standard motherboards and energy provides. This signifies a brand new route for Alienware, which its rivals have benefited from for a very long time. 

That is rather less true for the RGB LEDs contained in the Space-51’s case. An adapter is required must you wish to use them with one other motherboard, however Alienware makes the AlienFX cable conversion equipment accessible in order that any ATX motherboard can run the lighting within the case. This add-on is $35, which appears cheap sufficient to us. 

The hole offers loads of room for airflow with out a howling wind tunnel

Alienware Peripherals

Alienware additionally despatched over its AW3225QF. That is a 32-inch curved 4K QD-OLED monitor with a 240 Hz refresh charge. That is clearly tremendous quick and if the {hardware} helps it, tremendous clean. It pairs actually properly with the GeForce RTX 5090 within the Space-51. It has two RGB LED zones on the again of the monitor, so that you may not see them if it is going through a wall.

For connectivity, the AW3225QF has one DisplayPort enter and two HDMI 2.1 ports. All of those assist the total 240 Hz refresh charge and three,840×2,160 decision utilizing DSC, and helps G-sync compatibility and Dolby Imaginative and prescient HDR. It will get good and shiny, however it looks as if it’d run the pixel refresh program at idle extra continuously with the upper brightness. If the $1,200 retail value of the AW3225QF is just too wealthy to your blood, don’t fret; there are less expensive choices with stable specs, like a 27″ 1440p mannequin with a good quicker 280 Hz refresh charge. 

A type of HDMI 2.1 ports additionally helps eARC for sound bars and receivers, so you will get Dolby Atmos spatial encompass sound within the easiest method attainable. There’s additionally a complete of three 5 Gbps USB 3 ports and one 5 Gbps Sort-C port. Not like some Dell Ultrasharp shows, there isn’t any built-in KVM funcionality, however we do not actually anticipate that from a gaming monitor. Swapping inputs to connect with a console looks as if sufficient sharing for us. 

The corporate additionally included the non-compulsory 2.4 GHz wi-fi Professional Keyboard and Mouse equipment. These use USB-C receivers with a intelligent coupler that permits you to plug the charging cables in to attach the receivers with out having to futz round behind the system. And when you don’t love wi-fi peripherals, they each work with out the receivers in a wired vogue too. 

The keyboard has linear mechanical keys and could be shared with not solely the two.4 GHz receiver but in addition three Bluetooth gadgets with a button to change between the 2. It is obtained a tenkey-less design and a single RGB LED zone, and so far as gaming keyboards go it is just about precisely what most players would need. The white colorway matches the Space-51 completely. The mouse is fairly light-weight and comfy, and to save lots of on battery it would not characteristic any RGB lighting past a small energy indicator. 

Now that we have met the Space-51 and all of its equipment, it is time to see how this technique performs…