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What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
The Dell Alienware m15 R7 offers strong gaming and engineering performance and has solid build quality, but it's slightly more expensive and less portable than some. On the other hand, the Lenovo Legion 7i Pro provides excellent performance for 3D tasks, machine learning, and gaming, with a higher screen resolution and better screen quality. It also has a longer battery life and more storage but comes at a higher weight. If portability and budget are your top concerns, you might lean towards the Alienware. If you prioritize top-tier performance and display quality for intensive tasks, the Legion 7i Pro is the better choice. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Dell Alienware m15 R7
- The Dell Alienware m15 R7 has no clear advantages over the Lenovo Legion Pro 7i.
Advantages of the Lenovo Legion Pro 7i
- Very good for general use
- Excellent for engineering and design
- Excellent for gaming and AI
- Very good for software development
- Very good for content creation
- Best in class speakers
- Excellent keyboard
Key differences
General Use
7.5
8.4
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
300.0 nits
DISPLAY BRIGHTNESS
469.0 nits
5.0 Hours
BATTERY LIFE
5.0 Hours
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
6.4/10
PORTABILITY SCORE
6.4/10
The Lenovo Legion Pro 7i is very good for general use, while the Dell Alienware m15 R7 is good.
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
7.8
9.1
8.7/10
OVERALL GPU SCORE
9.8/10
2560 x 1440
RESOLUTION
2560 x 1600
240Hz
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 7i is excellent for gaming and AI, while the Dell Alienware m15 R7 is good.
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
8.2
9.3
8.5/10
OVERALL CPU SCORE
9.9/10
8.7/10
OVERALL GPU SCORE
9.8/10
16.0 GB
RAM
32.0 GB
The Lenovo Legion Pro 7i is excellent for engineering and design, while the Dell Alienware m15 R7 is very good.
The Dell Alienware m15 R7 is very good for engineering with its robust AMD Ryzen processor and Nvidia RTX 3070 Ti graphics backed by a large display, while the Lenovo Legion Pro 7i stands out as excellent due to its superior Intel i9 processor, more powerful RTX 4080 GPU, double the RAM, and significantly higher resolution and brighter screen which is essential for detailed design work. The tradeoff with the Legion is its slightly increased weight and potentially higher cost given its more advanced specs, whereas the Alienware offers a balance of performance and cost but may not be as future-proof for demanding tasks.
Content Creation
7.5
8.5
8.5/10
OVERALL CPU SCORE
9.9/10
2560 x 1440
RESOLUTION
2560 x 1600
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Legion Pro 7i is very good for content creation, while the Dell Alienware m15 R7 is good.
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
7.3
8.2
8.5/10
OVERALL CPU SCORE
9.9/10
16.0 GB
RAM
32.0 GB
2560 x 1440
RESOLUTION
2560 x 1600
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Lenovo Legion Pro 7i is very good for software development, while the Dell Alienware m15 R7 is good.
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.
Screen Quality
8.2
8.7
15.6in
SIZE
16.0in
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
240Hz
REFRESH RATE
240Hz
300.0 nits
BRIGHTNESS
469.0 nits
The Lenovo Legion Pro 7i has a better screen than the Dell Alienware m15 R7 for general use, gaming and AI, engineering and design, content creation, and software development.
For general use, both the Dell Alienware m15 R7 and the Lenovo Legion Pro 7i offer crisp images and bright displays due to their high resolution and quality panels, ensuring comfortable viewing and readability. In engineering and design, professionals benefit from the wide color gamuts of these laptops, which reproduce a broad spectrum of colors accurately, critical for detailed and color-sensitive work. However, for gaming and 3D applications where fast-paced visuals are common, the lower refresh rates on both laptops may lead to less smooth motion and a potentially less immersive experience compared to models with higher refresh rates.
Cost
$2,200
$2,000
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
The Dell Alienware m15 R7 has a price of $2,200 and the Lenovo Legion Pro 7i costs $2,000.
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Key similarities
Battery
5.0 Hours
5.0 Hours
The Dell Alienware m15 R7 has 5 hours of battery life. The Lenovo Legion Pro 7i has 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
15.6in
SIZE
16.0in
5.9 lbs
WEIGHT
6.1 lbs
0.9in
THICKNESS
0.9in
The Dell Alienware m15 R7 and Lenovo Legion Pro 7i both have only fair portability.
The most portable laptops are small, thin, and light.
Build Quality
8.5
8.5
The Dell Alienware m15 R7 and Lenovo Legion Pro 7i both have very good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
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How the Dell Alienware m15 R7 and the Lenovo Legion Pro 7i compare to other laptops
Spec Comparison
 |  | |
| Dell Alienware m15 R7 | Lenovo Legion Pro 7i |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,200 | $2,000 | ||
Release Date | |||
Release Date | May 1, 2022 | March 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 10.7'' x 0.94'' | 14.3'' x 10.3'' x 0.94'' | |
Weight | |||
Weight | 5.93 lbs | 6.17 lbs | |
Width | |||
Width | 14.02" | 14.3" | |
Depth | |||
Depth | 10.73" | 10.32" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 6900HX | Intel i9-13900HX | |
RAM | |||
RAM | 16 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 5 Hours | 5 Hours | |
Battery Capacity | |||
Battery Capacity | 86 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1440 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 240Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 300 nits | 469 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 6.5/10 | 6.5/10 | |
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 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7.5/10 | 9.8/10 | |
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 | 3 | 4 | |
USB-C ports | |||
USB-C ports | 1 | 2 | |
USB-C Charging | |||
USB-C Charging | No | Yes | |
Display Outputs | |||
Display Outputs | 2 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | N/A | 4 | |
Shopping
Dell Alienware m15 R7
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Dig into reviews and images
Tom's Hardware
Brandon Hill | October 2022
"The Alienware M15 offers solid gaming and leading endurance. It makes the most of its CPU and GPU while delivering stellar battery life for a gaming laptop. Opening the lid presents a full-size keyboard with honeycomb cutouts above it on the deck. An oblong RBG lightning element surrounds the entire rear panel and can be color-synced with the other lights on the laptop. There’s not a lot to dislike about the M15 Its productivity performance lagged in some areas, particularly in the storage benchmark, and it’s a bit heavy. Alienware has a clear winner here with the M15 based on its strong overall performance and endurance."
Lenovo Legion Pro 7i
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Dig into reviews and images
NotebookCheck
Florian Glaser | February 2023
"Passionate gamers who want to play demanding modern titles with maximum details and don't mind spending the moolah will find the Lenovo Legion 7 Pro to be the right choice. The bright, sharp, and color-accurate 16:10 QHD 240 Hz display makes for an immersive viewing experience. The hardware is housed in a stylish chassis that feels premium and scores well in terms of workmanship and stability. Other aspects such as sound quality, input devices, and connectivity also seem to be near-perfect."
Get a great deal on the Dell Alienware m15 R7 or the Lenovo Legion Pro 7i
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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