A comparison of specs, key information, reviews, and best pricing from top retailers
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Company ProductName Specs
Company ProductName Specs
Advantages of the Dell Alienware X17 R2
- Very good overall build quality
- Best in class speakers
Advantages of the Lenovo Legion Pro 5i
- The Lenovo Legion Pro 5i has no clear advantages over the Dell Alienware X17 R2.
Key differences
Screen Quality
8.3
8.7
17.3in
SIZE
16.0in
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
360Hz
REFRESH RATE
240Hz
344.0 nits
BRIGHTNESS
469.0 nits
The Lenovo Legion Pro 5i has a better screen than the Dell Alienware X17 R2 for general use, gaming and AI, engineering and design, and content creation.
PerfectRec’s screen quality scores take into account various important factors that are relevant for different use cases.
Battery
2.0 Hours
3.5 Hours
The Dell Alienware X17 R2 has 2 hours of battery life. The Lenovo Legion Pro 5i has 3.5 hours of battery life.
Battery life estimate is based on a mix of common use patterns. More portable and higher performing laptops tend to have less battery life.
Portability
Fair
Fair
17.3in
SIZE
16.0in
6.8 lbs
WEIGHT
5.6 lbs
0.8in
THICKNESS
0.9in
The Lenovo Legion Pro 5i and Dell Alienware X17 R2 both have only fair portability, though the Lenovo Legion Pro 5i has somewhat better portability.
The most portable laptops are small, thin, and light.
Build Quality
8.5
7.4
The Dell Alienware X17 R2 has very good build quality, while the Lenovo Legion Pro 5i has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$2,250
$1,899
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
The Dell Alienware X17 R2 has a price of $2,250 and the Lenovo Legion Pro 5i costs $1,899.
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Key similarities
General Use
7.9
7.8
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
344.0 nits
DISPLAY BRIGHTNESS
469.0 nits
2.0 Hours
BATTERY LIFE
3.5 Hours
8.5/10
KEYBOARD QUALITY SCORE
8.5/10
6.0/10
PORTABILITY SCORE
6.6/10
The Dell Alienware X17 R2 and Lenovo Legion Pro 5i are both good for general use.
PerfectRec’s General Use Score takes into account the many different features of the laptop that make it more or less suitable for general productivity, web browsing, streaming, video calls, and running a wide variety of apps and programs.
Gaming and AI
8.5
8.7
8.8/10
OVERALL GPU SCORE
8.9/10
1920 x 1080
RESOLUTION
2560 x 1600
360Hz
REFRESH RATE
240Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.0/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion Pro 5i and Dell Alienware X17 R2 are both very good for gaming and AI.
PerfectRec’s Gaming and AI Score strongly emphasizes graphics processing capability, while also taking into account other factors that impact suitability for gaming and AI work.
Engineering and Design
8.6
8.8
9.1/10
OVERALL CPU SCORE
9.9/10
8.8/10
OVERALL GPU SCORE
8.9/10
16.0 GB
RAM
16.0 GB
The Lenovo Legion Pro 5i and Dell Alienware X17 R2 are both very good for engineering and design.
PerfectRec’s Engineering and Design Score takes into account the many different features of the laptop that make it more or less suitable for graphic design and 3D rendering work.
Content Creation
8.0
8.0
9.1/10
OVERALL CPU SCORE
9.9/10
1920 x 1080
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Dell Alienware X17 R2 and Lenovo Legion Pro 5i are both very good for content creation.
PerfectRec’s Content Creation Score takes into account the many different features of the laptop that make it more or less suitable for photo editing, video editing and other content creation tasks.
Software Development
7.5
7.7
9.1/10
OVERALL CPU SCORE
9.9/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1600
8.5/10
KEYBOARD QUALITY SCORE
8.5/10
The Lenovo Legion Pro 5i and Dell Alienware X17 R2 are both good for software development.
PerfectRec’s Software Development Score takes into account the many different features of the laptop that make it more or less suitable for software developers.
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How the Dell Alienware X17 R2 and the Lenovo Legion Pro 5i compare to other laptops
Spec Comparison
 |  | |
| Dell Alienware X17 R2 | Lenovo Legion Pro 5i |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,250 | $1,899 | ||
Release Date | |||
Release Date | December 1, 2021 | March 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 15.7'' x 11.8'' x 0.82'' | 14.3'' x 10.3'' x 0.97'' | |
Weight | |||
Weight | 6.82 lbs | 5.6 lbs | |
Width | |||
Width | 15.72" | 14.31" | |
Depth | |||
Depth | 11.79" | 10.25" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-12700H | Intel i9-13900HX | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 2 Hours | 3.5 Hours | |
Battery Capacity | |||
Battery Capacity | 87 Wh | 80 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 17.3" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 360Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 344 nits | 469 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 7.4/10 | |
Portability Score | |||
Portability Score | 6.1/10 | 6.6/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7/10 | 6.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.5/10 | 7/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 4 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 4 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | N/A | |
Shopping
Dell Alienware X17 R2
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Dig into reviews and images
NotebookCheck
Allen Ngo | May 2022
"The Alienware x17 R2 recognizes targets a significantly higher TGP of 175 W for a roughly 30 percent performance boost over laptops running on the ~100 W GeForce RTX 3080 Ti like the Razer Blade 15 or Gigabyte Aero YE5. Similar results can be found through the CPU as well. This single aspect of the Alienware is perhaps the biggest differentiating factor between it and other ultrathin gaming laptops. Of course, the "performance at all cost" approach comes with drawbacks. Power consumption in particular is through the roof and battery life suffers because of it even when on the lowest performance settings."
Lenovo Legion Pro 5i
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Dig into reviews and images
PCMag
Brian Westover | August 2023
"The midpriced Lenovo Legion Pro 5i Gen 8 follows some of our favorite gaming machines, including last year's model and the higher-end Legion Pro 7i Gen 8 tested earlier this year. But pedigree doesn't count for much in the computer world, and gaming laptops require a certain level of power and graphics performance to justify their prices. The Pro 5i Gen 8 just doesn't do that, offering middling CPU and GPU performance rather than the sort of muscle that would make it a great value."
Get a great deal on the Dell Alienware X17 R2 or the Lenovo Legion Pro 5i
About Dell
Dell is a highly recognizable American technology company, and is one of the largest personal computer vendor by market share. Their laptops are very popular for both personal and professional use, and they also own the Alienware brand which makes mid to high end gaming laptops. Their premium XPS range of laptops offer great build quality and portability, while Latitude and Precision laptops are known for reliability, repairability and performance for business users.
About Lenovo
Lenovo is a Chinese technology company, and one of the largest personal computer vendor. They are well known for a variety of technology products, including laptops. Their consumer series include their entry level IdeaPad and LOQ series and mid-to-high-end Yoga and Legion series. On the business-oriented side, their series include their entry-level ThinkBook series and mid-to-high-end ThinkPad series. Lenovo laptops offer strong performance for reasonable prices, and are often on sale.
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Why trust us
This information was produced and vetted by the PerfectRec laptops team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest laptop information and makes it digestible for you.
By the numbers
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Laptops evaluated
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Laptops stats compiled
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Proprietary Laptops ratings developed
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Recommendations made
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Consumer hours saved
About the laptop team
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CEO and Laptops Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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Staff Expert & Software Engineer
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Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
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