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Updated January 10, 2024·
When choosing between the Dell Alienware m15 R7 and the Lenovo Legion 7, consider the following tradeoffs: For peak gaming performance and slightly better suitability for intensive engineering tasks, the Alienware is the powerful choice but comes at a higher price. The Legion 7, while less expensive, still offers substantial performance for gaming and engineering tasks, a larger screen, better battery life, and greater portability due to its lighter weight. Both laptops have high-quality displays and keyboards, but if budget and portability are more significant concerns for you, the Lenovo Legion 7 may be the better option. 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 7.
Advantages of the Lenovo Legion 7
- Good portability
- Good battery life
- Very good speakers
- Excellent keyboard
Key differences
Screen Quality
8.2
8.3
15.6in
SIZE
16.0in
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
240Hz
REFRESH RATE
165Hz
300.0 nits
BRIGHTNESS
469.0 nits
The Dell Alienware m15 R7 has a better screen than the Lenovo Legion 7 for gaming and AI, while the Lenovo Legion 7 has a better screen for general use, content creation, and software development.
The Dell Alienware m15 R7 and Lenovo Legion 7 both offer high-resolution displays with good brightness and panel types that make them excellent for daily tasks and professional engineering and design work where clarity and color accuracy are critical. Their advanced color gamut coverage ensures that designers can trust the colors they see on the screen, which is vital for precise work. However, for 3D gaming, which demands fast-moving visuals, the lower refresh rates on these laptops make them less suited for a smooth and immersive experience compared to models with higher refresh rates.
Battery
5.0 Hours
6.5 Hours
The Dell Alienware m15 R7 has 5 hours of battery life. The Lenovo Legion 7 has 6.5 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
Good
15.6in
SIZE
16.0in
5.9 lbs
WEIGHT
5.5 lbs
0.9in
THICKNESS
0.8in
The Lenovo Legion 7 has good portability, while the Dell Alienware m15 R7 has only fair portability.
The most portable laptops are small, thin, and light.
Cost
$2,200
$1,500
$500
$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 7 costs $1,500.
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Key similarities
General Use
7.5
7.9
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
300.0 nits
DISPLAY BRIGHTNESS
469.0 nits
5.0 Hours
BATTERY LIFE
6.5 Hours
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
6.4/10
PORTABILITY SCORE
7.0/10
The Lenovo Legion 7 and Dell Alienware m15 R7 are both good for general use.
The Dell Alienware m15 R7 offers a powerful CPU and high-quality screen with good color coverage for general tasks but is heavier and has less battery life than the Lenovo Legion 7, which also features a high-resolution display and more storage, adding value for those who prioritize a lighter laptop with slightly longer battery life.
Gaming and AI
7.8
7.8
8.7/10
OVERALL GPU SCORE
8.4/10
2560 x 1440
RESOLUTION
2560 x 1600
240Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.0/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion 7 and Dell Alienware m15 R7 are both good for gaming and AI.
The Dell Alienware m15 R7's Nvidia RTX 3070 Ti GPU and high screen refresh rate of 240 Hz make it excellent for gaming and 3D tasks offering better rendering of fast-moving images and smoother gameplay. In contrast, the Lenovo Legion 7 also provides a solid gaming experience with the Nvidia RTX 3070 GPU and a refresh rate of 165 Hz, but it may not be as fluid in the fastest scenes as the Alienware.
Engineering and Design
8.2
8.2
8.5/10
OVERALL CPU SCORE
7.4/10
8.7/10
OVERALL GPU SCORE
8.4/10
16.0 GB
RAM
16.0 GB
The Lenovo Legion 7 and Dell Alienware m15 R7 are both very good for engineering and design.
The Dell Alienware m15 R7 stands out for engineering and design use with its powerful AMD Ryzen 9 CPU and superior Nvidia RTX 3070 Ti GPU, crucial for demanding tasks and rendering, while offering a high refresh rate screen for smooth visuals. In contrast, the Lenovo Legion 7, though slightly behind in compute power, boasts a higher resolution and brightness display for detailed and vibrant design work, more port-friendly chassis improving connectability, and a higher-quality keyboard, making it a solid choice for both performance and comfort in extended engineering sessions.
Content Creation
7.5
7.9
8.5/10
OVERALL CPU SCORE
7.4/10
2560 x 1440
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Legion 7 and Dell Alienware m15 R7 are both 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
7.3
7.6
8.5/10
OVERALL CPU SCORE
7.4/10
16.0 GB
RAM
16.0 GB
2560 x 1440
RESOLUTION
2560 x 1600
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Lenovo Legion 7 and Dell Alienware m15 R7 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.
Build Quality
8.5
8.5
The Dell Alienware m15 R7 and Lenovo Legion 7 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 7 compare to other laptops
Spec Comparison
 |  | |
| Dell Alienware m15 R7 | Lenovo Legion 7 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,200 | $1,500 | ||
Release Date | |||
Release Date | May 1, 2022 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 10.7'' x 0.94'' | 14'' x 10.3'' x 0.86'' | |
Weight | |||
Weight | 5.93 lbs | 5.5 lbs | |
Width | |||
Width | 14.02" | 14.01" | |
Depth | |||
Depth | 10.73" | 10.27" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 6900HX | AMD Ryzen 7 5800H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 5 Hours | 6.5 Hours | |
Battery Capacity | |||
Battery Capacity | 86 Wh | 80 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 | 165Hz | |
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 | 7/10 | |
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 | 8.8/10 | |
Webcam | |||
Webcam | 720p | 720p | |
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 | 3 | |
USB-C ports | |||
USB-C ports | 1 | 3 | |
USB-C Charging | |||
USB-C Charging | No | Yes | |
Display Outputs | |||
Display Outputs | 2 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
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 7
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Dig into reviews and images
NotebookCheck
Andreas Osthoff | September 2022
"The Lenovo Legion 7 is a fast 16-inch gamer with 165 Hz display. The new Lenovo Legion 7 is a very good gaming notebook that, despite its comparatively compact compact 16-inch case, does not have to do without the most powerful components. Thanks to good cooling, no compromises are made in terms of performance. Both the Core i9-12900HX and the GeForce RTX 3080 Ti perform at a very high level."
Get a great deal on the Dell Alienware m15 R7 or the Lenovo Legion 7
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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