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Updated January 10, 2024·
The Dell Alienware m15 R7 comes with a more powerful processor and graphics card, making it well-suited for intensive gaming and high-performance tasks like 3D modeling or video editing. However, it is more expensive and heavier, which could impact its portability. It also has a shorter battery life, so frequent access to power might be necessary. On the other hand, the Lenovo Slim 7 16 is less expensive and lighter, which improves portability, and it has a longer battery life, making it better for on-the-go use. While the Lenovo is capable of handling general use and some gaming, it's not as well-equipped for the most demanding tasks as the Dell. 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
- Very good for engineering and design
- Good for gaming and AI
- Very good overall build quality
Advantages of the Lenovo Slim 7 16
- Good portability
- Good battery life
Key differences
Gaming and AI
7.8
6.6
8.7/10
OVERALL GPU SCORE
4.3/10
2560 x 1440
RESOLUTION
2560 x 1600
240Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
7.0/10
FAN NOISE SCORE
7.0/10
The Dell Alienware m15 R7 is good for gaming and AI, while the Lenovo Slim 7 16 is only fair.
The Dell Alienware m15 R7 is well-suited for gaming and 3D applications thanks to its more powerful Nvidia RTX 3070 Ti graphics card and a higher screen refresh rate of 240 Hz, which provides smoother visuals in fast-paced scenes. In contrast, the Lenovo Slim 7 16 has an Nvidia RTX 3050, which is less powerful, and a lower screen refresh rate of 165 Hz, making it adequate but less optimal for gaming and 3D tasks.
Engineering and Design
8.2
7.5
8.5/10
OVERALL CPU SCORE
7.2/10
8.7/10
OVERALL GPU SCORE
4.3/10
16.0 GB
RAM
16.0 GB
The Dell Alienware m15 R7 is very good for engineering and design, while the Lenovo Slim 7 16 is good.
The Dell Alienware m15 R7 is very good for engineering and design primarily due to its superior CPU and GPU, which are important for intensive computing and graphics rendering tasks, while the Lenovo Slim 7 16's more moderate CPU and GPU still support engineering and design applications but at a lower performance tier.
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
500.0 nits
The Lenovo Slim 7 16 has a better screen than the Dell Alienware m15 R7 for general use, and content creation.
If you prioritize a clear, sharp display and bright visuals for tasks like browsing, editing documents, or watching videos, both the Dell Alienware m15 R7 and the Lenovo Slim 7 16 offer excellent screen resolution and brightness that meet these needs well. For engineering and design where accurate color representation is crucial, both laptops have displays that cover a broad spectrum of colors, providing the fidelity needed for precise work. However, for gaming and 3D applications that benefit from smoother motion and quick screen refresh, both models may fall short as their refresh rates are lower, which is less ideal for fast-paced visuals and may not provide as fluid an experience.
Battery
5.0 Hours
9.5 Hours
The Dell Alienware m15 R7 has 5 hours of battery life. The Lenovo Slim 7 16 has 9.5 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
4.6 lbs
0.9in
THICKNESS
0.6in
The Lenovo Slim 7 16 has good portability, while the Dell Alienware m15 R7 has only fair portability.
The most portable laptops are small, thin, and light.
Build Quality
8.5
7.8
The Dell Alienware m15 R7 has very good build quality, while the Lenovo Slim 7 16 has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$2,200
$1,440
$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 Slim 7 16 costs $1,440.
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Key similarities
General Use
7.5
7.7
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
300.0 nits
DISPLAY BRIGHTNESS
500.0 nits
5.0 Hours
BATTERY LIFE
9.5 Hours
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
6.4/10
PORTABILITY SCORE
7.5/10
The Lenovo Slim 7 16 and Dell Alienware m15 R7 are both good for general use.
The Dell Alienware m15 R7 offers high performance suitable for demanding tasks with its strong CPU and GPU, making it a viable option for general and gaming use, but its portability is compromised due to its heavier weight and shorter battery life. Meanwhile, the Lenovo Slim 7 16's lighter weight and longer battery life make it more portable and user-friendly for general use, although it may not perform as well in highly intensive tasks.
Content Creation
7.5
7.6
8.5/10
OVERALL CPU SCORE
7.2/10
2560 x 1440
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Slim 7 16 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
7.2/10
16.0 GB
RAM
16.0 GB
2560 x 1440
RESOLUTION
2560 x 1600
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
The Lenovo Slim 7 16 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.
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How the Dell Alienware m15 R7 and the Lenovo Slim 7 16 compare to other laptops
Spec Comparison
 |  | |
| Dell Alienware m15 R7 | Lenovo Slim 7 16 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,200 | $1,440 | ||
Release Date | |||
Release Date | May 1, 2022 | June 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 10.7'' x 0.94'' | 14'' x 9.7'' x 0.69'' | |
Weight | |||
Weight | 5.93 lbs | 4.6 lbs | |
Width | |||
Width | 14.02" | 14.01" | |
Depth | |||
Depth | 10.73" | 9.68" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 6900HX | AMD Ryzen 7 6800HS | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 0 | |
Storage | |||
Storage | 512 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 5 Hours | 9.5 Hours | |
Battery Capacity | |||
Battery Capacity | 86 Wh | 75 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 | 500 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 7.8/10 | |
Portability Score | |||
Portability Score | 6.5/10 | 7.6/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7/10 | 7/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 8/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7.5/10 | 7.5/10 | |
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 | 2 | |
USB-C ports | |||
USB-C ports | 1 | 1 | |
USB-C Charging | |||
USB-C Charging | No | Yes | |
Display Outputs | |||
Display Outputs | 2 | 2 | |
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 Slim 7 16
See more
Dig into reviews and images
PCMag
Eric Grevstad | March 2022
"At $1,011, the Lenovo IdeaPad Slim 7 Pro is a real bargain among full-sized laptops, with a handsome 16-inch, 16:10 aspect ratio touch screen, a speedy CPU, a comfortable keyboard, ample memory, and a roomy solid-state drive. It's not a blazing gaming rig or mobile workstation, but it doesn't pretend to be. Its biggest negative is that it may be hard to find—during our review, it sold out and was marked "Temporarily Unavailable" on Lenovo's site."
Get a great deal on the Dell Alienware m15 R7 or the Lenovo Slim 7 16
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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