Visit our Business Solutions website >>

Alienware X51 R2

Alienware X51 R2
alaScore 86

272 reviews

Dec, 2018

We have collected and analyzed 3 expert reviews and 269 user reviews from international sources. Experts rate this product 80/100 and users rate it 79/100. The average review date is Aug 10, 2014. We have compared these reviews to 321449 reviews from other Desktops. The alaScore™ for this product is 86/100 = Very good. Last update: Dec 13, 2018.

Review analysis

(Based on 272 reviews)

Expert Reviews  

User Reviews  

Showing 267 review(s)

Expert Reviews User Reviews


Below is a list of reviews for this or similar products. If you think this grouping is wrong please click here to flag.
Read more on our FAQ’s page.
Showing 1 - 150 of 267 Show Reviews: in English

Consumer review ( review summary for Alienware X51 R2


alaTest has collected and analyzed 140 user reviews of Alienware X51 R2 from The average user rating for this product is 3.9/5, compared to an average user rating of 4.0/5 for other Desktops on Reviewers really like the size and usability, whereas there are some negative comments about the price.

design, usability, size


79% of the reviews on give this product a positive rating.

This summary is based on the products: Alienware X51 AX51R2-1438BK Desktop (Matte Stealth Black with Dark Chrome Accents)Alienware X51 AX51R2-1438BK Desktop (Matte Stealth Black with Dark Chrome Accents)

Dec, 2018

Expert review by : John R. Delaney (

Alienware X51-R2


The Alienware X51-R2 small-form-factor gaming desktop offers respectable gaming performance at a reasonable price.

Reasonably priced. Small footprint. Solid performance.

No room for expansion. Does not include keyboard or mouse.

The Alienware X51-R2 is a neat little gaming system that won't break the bank. Its Nvidia GPU and Haswell CPU provide solid entry-level gaming performance, and you get the usual Alienware bling, including cool lighting effects and a glowing alien head,...

Nov, 2014

Expert review by : Chris Burns (

Alienware x51 R2 Review with AMD Radeon R9 270b


Here in the late Summer of 2014 we're having a look at a gaming PC from Alienware that's continuing to aim for console-beating power after nearly a year out in the wild. This review isn't like most SlashGear reviews where we review a product early -...

The Alienware x51 R2 certainly looks the part, but fails to be generous enough in the price VS functionality department to recommend over a gaming console. If you’re looking for AMD power, you can certainly stack it in neatly here, but you’re just as...

Aug, 2014

Expert review by (

Alienware X51 R2 review


The Alienware X51 R2 makes a decent living room gaming PC although it is a bit pricey


Consumer review (

Closer to a laptop


I have some Dell laptops too. This feels like one of the high end laptops. Somehow it just does not perform as crisply as big iron. It struggles on some games. It gets loaded down when doing Windows updates, which my other Dells do not. Normally in...

Sep, 2015

Consumer review (

One Problem after another.


WalMart made a mistake selling this computer. Then I made a bigger mistake buying one. I was thinking alienware was still making these. I didn't know that Dell was making them,and they had Dell parts in them. You will spend more time trying to get it...

Jul, 2015

Consumer review (

Excellent Gaming Machine


I bought the Alienware X51 R2 on May 29th, and received it earlier then expected delivery. The performance is excellent, and the price wasn't too expensive. The form factor is fantastic, but requires an external power supply, which isn't that much of...

Jun, 2015

Consumer review (

Simple Yet Powerful Gaming Machine


Simple Yet Powerful Gaming Machine that used as Steam Box which I played on the large TV ...

Apr, 2015

Consumer review (

Fantastic, but..


I absolutely love this computer! I splurged a little and got the Extreme Edition, which I would recommend. This thing is powerful for its small size. Just a little bit bigger than a gaming console. Runs every single one of my games on Ultra 1080p...

Apr, 2015

Consumer review (

Great performance, few criticisms


I purchased the Alienware-R2 a couple months ago. Immediately my expectations were exceeded; booting up my games revealed I could cap them out on the highest settings with V-sync capping my FPS at 75, able to significantly above. Specs @ 1440x900p...

Apr, 2015

Consumer review (

Great System but Problems with playing online Game


I bought this system for my son for Gaming only had it a couple of weeks. We have purchased several games for him to play online and only play 2 out of the 30 something games he's downloaded.i did purchase a 2 year warranty so I definitely will be...

Mar, 2015

Product Specifications


Chassis type:Desktop
Color of product:Black
Placement supported:Horizontal / Horizontal/Vertical
Water cooling system:N

Energy Management

Power supply:240
Power supply input frequency:50 - 60 / 50/60
Power supply input voltage:100 - 240


CUDA cores:640
Discrete graphics adapter:Y
Discrete graphics adapter memory:1.5 / 1024 / 1096 / 1536 / 2 / 2048 / 4096
Discrete graphics adapter model:AMD Radeon R9 270 / NVIDIA GeForce GTX 645 / NVIDIA GeForce GTX 660 / NVIDIA GeForce GTX 670 / NVIDIA GeForce GTX 745 / NVIDIA GeForce GTX 750 Ti / NVIDIA GeForce GTX 760 / NVIDIA GeForce GTX 760 Ti
Discrete graphics memory type:GDDR3 / GDDR5
Graphics adapter Open GL support: Yes
Maximum on-board graphics adapter memory:1.024 / 1.74 / 2
Number of discrete graphics adapters:1
Number of displays supported (on-board graphics):3
On-board graphics adapter:Y / Yes
On-board graphics adapter base frequency:350
On-board graphics adapter DirectX version:11.1 / 11.2/12
On-board graphics adapter dynamic frequency (max):1100 / 1150 / 1200
On-board graphics adapter family:Intel® HD Graphics
On-board graphics adapter ID:0x412 / 0x41E
On-board graphics adapter model:Intel HD Graphics 4400 / Intel HD Graphics 4600 / Intel® HD Graphics 4600
On-board graphics adapter OpenGL version:4.0 / 4.3


Internal memory:16 / 6 / 8
Internal memory type:DDR3-SDRAM
Maximum internal memory:16
Memory clock speed:1600
Memory layout:2 x 4 / 2 x 8
Memory layout (slots x size):2 x 4 / 2 x 8
Memory slots:2x DIMM
Non-ECC:Y / Yes


Bluetooth: Yes
Bluetooth version:4.0
Cabling technology:10/100/1000Base-T(X)
Ethernet LAN:Y
Ethernet LAN connection: Yes
Ethernet LAN data rates:10,100,1000
Wake-on-LAN ready: Yes
Wi-Fi:Y / Yes
Wi-Fi standards:802.11a, 802.11ac, 802.11b, 802.11g, 802.11n / 802.11ac / 802.11b, 802.11g, 802.11n / 802.11n / IEEE 802.11b,IEEE 802.11g,IEEE 802.11n

Operational Conditions

Non-operating altitude:-598.4 - 420000
Operating altitude:-598.4 - 120000
Operating relative humidity (H-H):20 - 80
Operating relative humidity range:20 - 80
Operating temperature (T-T):10 - 35
Operating temperature range (T-T):10 - 35
Storage temperature (T-T):-10 - 45
Storage temperature range (T-T):-10 - 45

Optical Drive

Optical Drive Type:Blu-Ray DVD Combo / DVD Super Multi DL / DVD±RW
Optical drives quantity:1

Other Features

Intel Virtualization Technology:VT-d, VT-x / VT-x / VT-x, VT-d
Intel® Virtualization Technology (Intel® VT):VT-d,VT-x / VT-x / VT-x,VT-d

Packaging Content

AC adapter bundled: Yes
AC adapter included:Y
Cables included:AC
Display included:N / No
Drivers included: Yes
Keyboard supplied: Yes
Manual:Y / Yes
Mouse included:N / Yes


Audio output channels:5.1 / 7.1
Audio system:HD / Waves Maxx Audio
Chipset:Intel H87
Compatible processor series:Core i3, Core i5, Core i7
Motherboard chipset:Intel H87
Motherboard form factor:Mini ITX
Password protection:Y
Password protection type:BIOS, User
Product type:Mini PC / PC

Ports & interfaces

Combo headphone/mic port: No
DC-in jack:No / Yes
DVI port:N / No
Ethernet LAN (RJ-45) ports:1
Ethernet LAN (RJ-45) ports quantity:1
HDMI ports quantity:1
HDMI version:1.4
Headphone outputs:1
Line-in:Y / Yes
Line-out:Y / Yes
Microphone in:Y / Yes
S/PDIF out port:Y / Yes
SmartCard slot: No
USB 2.0 ports quantity:2 / 6
USB 3.0 (3.1 Gen 1) Type-A ports quantity:2 / 6 / 8
USB 3.0 ports quantity:6


Power supply:240
Power supply input frequency:50 - 60 / 50/60
Power supply input voltage:100 - 240


Bus type:DMI / DMI2 / QPI
Conflict Free processor:Y
ECC supported by processor:N / Y
FSB Parity: No
Maximum internal memory supported by processor:32
Maximum number of PCI Express lanes:16
Memory bandwidth supported by processor (max):25.6
Memory channels supported by processor:Dual
Memory clock speeds supported by processor:1333,1600
Memory types supported by processor:DDR3-SDRAM
Memory voltage supported by processor:1.5
Number of processors installed:1
Number of QPI links:1
PCI Express configurations:1x16, 2x8, 1x8+2x4 / 1x16,2x8,1x8+2x4 / 1x8+2x4, 1x16, 2x8
PCI Express slots version:3.0
Processor:i3-4150 / i5-4440 / i5-4460 / i7-4770 / i7-4790
Processor boost frequency:3.2 / 3.3 / 3.4 / 3.40 / 3.9 / 4
Processor cache:3 / 6 / 8
Processor cache type:Smart Cache
Processor codename:Haswell
Processor cores:2 / 4
Processor family:4th gen Intel® Core™ i3 / 4th gen Intel® Core™ i5 / 4th gen Intel® Core™ i7 / Intel Core i5-4xxx / Intel Core i7-4xxx
Processor frequency:3 / 3.1 / 3.2 / 3.4 / 3.5 / 3.6
Processor lithography:22
Processor model:i3-4150 / i5-4430 / i5-4440 / i5-4460 / i7-4770 / i7-4790
Processor operating modes:32-bit, 64-bit / 64-bit
Processor series:Intel Core i3-4100 Desktop series / Intel Core i5-4400 Desktop series / Intel Core i7-4700 Desktop series
Processor socket:LGA 1150 (Socket H3) / Socket H3 (LGA 1150)
Processor threads:4 / 8
System bus data transfer rate:5
System bus rate:5
Tcase:72 / 72.72
Thermal Design Power (TDP):54 / 84

Processor special features

CPU configuration (max):1
Embedded options available:N / No / Yes
Enhanced Intel SpeedStep Technology:Y / Yes
Execute Disable Bit:Y / Yes
Graphics & IMC lithography:22
Idle States:Y / Yes
Intel 64:Y
Intel Active Management Technology: No
Intel AES New Instructions: Yes
Intel Anti-Theft Technology:No / Yes
Intel Clear Video HD Technology: Yes
Intel Clear Video Technology:N
Intel Clear Video Technology for MID: No
Intel Demand Based Switching: No
Intel Dual Display Capable Technology:No / Y
Intel Enhanced Halt State:Y / Yes
Intel Fast Memory Access: No
Intel FDI Technology:No / Y / Yes
Intel Flex Memory Access: No
Intel HD Audio Technology: No
Intel HD Graphics:Y
Intel Hyper-Threading Technology:No / Yes
Intel Identity Protection Technology:No / Yes
Intel Identity Protection Technology version:1.00
Intel Insider:No / Yes
Intel InTru 3D Technology: Yes
Intel My WiFi Technology:No / Yes
Intel Quick Sync Video Technology: Yes
Intel Rapid Start Technology: No
Intel Rapid Storage Technology: No
Intel Secure Key Technology version:1.00
Intel Small Business Advantage (SBA) version:1.00
Intel Smart Cache: Yes
Intel Smart Connect Technology: No
Intel Smart Response Technology: No
Intel Stable Image Platform Program (SIPP):N / Y
Intel Stable Image Platform Program (SIPP) version:0.00 / 1.00
Intel Trusted Execution Technology:N / No / Yes
Intel TSX-NI:N / Y
Intel TSX-NI version:0.00
Intel Turbo Boost Technology:2.0 / No
Intel Virtualization Technology:VT-x, VT-d
Intel Virtualization Technology (VT-x):Y
Intel Virtualization Technology for Directed I/O (VT-d):N / Y
Intel vPro Technology:No / Yes
Intel VT-x with Extended Page Tables (EPT):Y / Yes
Intel Wireless Display (WiDi) Technology: Yes
Intel® Active Management Technology (Intel® AMT):N
Intel® AES New Instructions (Intel® AES-NI):Y
Intel® Anti-Theft Technology (Intel® AT):N / Y
Intel® Built-in Visuals Technology: Yes
Intel® Clear Video HD Technology (Intel® CVT HD):Y
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID):N
Intel® High Definition Audio (Intel® HD Audio):N
Intel® Hyper Threading Technology (Intel® HT Technology):N / Y
Intel® Identity Protection Technology (Intel® IPT):N / Y
Intel® Insider™:No / Y / Yes
Intel® InTru™ 3D Technology:Y / Yes
Intel® Iris™ Pro Graphics: No
Intel® My WiFi Technology (Intel® MWT):N / Y
Intel® OS Guard:Y
Intel® Quick Sync Video Technology:Y / Yes
Intel® Rapid Start Technology: No
Intel® Secure Key:Y
Intel® Small Business Advantage (Intel® SBA):N / Y
Intel® Smart Cache:Y
Intel® Smart Response Technology: No
Intel® Turbo Boost Technology:2.0 / No
Intel® vPro™ Technology:N / Y
Intel® Wireless Display (Intel® WiDi):Y
InTru™ 3D Technology: Yes
Processor ARK ID:75036 / 75038 / 75122 / 77486 / 80806 / 80817
Processor code:SR149 / SR14G / SR1PJ / SR1QF / SR1QK
Processor package size:37.5 / 37.5 x 37.5
Supported instruction sets:AVX 2.0 / AVX 2.0, SSE4.1, SSE4.2 / AVX 2.0,SSE4.1,SSE4.2
Thermal Monitoring Technologies:Y / Yes
Thermal solution specification:PCG 2013C / PCG 2013D


Operating system architecture:64-bit
Operating system installed:Windows 7 Home Premium / Windows 8 / Windows 8.1
Operating system language:KOR
Trial software:Microsoft Office / MS Office, McAfee Live Safe


Card reader integrated: No
Hard disk rotational speed:5400 / 7200
Hard Drive Capacity:1000 / 2000
Hard Drive Interface:Serial ATA / Serial ATA II / Serial ATA III
Hard Drive Size:3.5
Hard drive speed:5400 / 7200
Host interface:SATA / Serial ATA II / Serial ATA III
Number of hard drives installed:1
Number of SSDs installed:1
Number of storage drives installed:1 / 2
Number of storage drives supported:3
Solid-state drive capacity:256
Storage media:HDD / HDD+SSD / SSD
Total Storage Capacity:1000 / 1256 / 2000 / 256

Weight & Dimensions

Depth:12.5 / 125.6
Weight:12 / 12.1