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What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
The Dell Inspiron 15 3525 is less expensive and offers basic functionality suitable for general use, with a touchscreen and decent portability due to its lighter weight. In contrast, the Lenovo Legion 7, while more expensive, provides higher performance for intensive tasks like 3D rendering, machine learning, and gaming due to its more powerful processor and graphics card. It also has a higher-resolution display, more RAM, and greater storage capacity but is heavier which affects portability. 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 Inspiron 15 3525
- The Dell Inspiron 15 3525 has no clear advantages over the Lenovo Legion 7.
Advantages of the Lenovo Legion 7
- Very good for engineering and design
- Good for gaming and AI
- Good for software development
- Very good overall display quality
- Very good overall build quality
- Very good speakers
- Excellent keyboard
Key differences
General Use
7.0
7.9
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
259.0 nits
DISPLAY BRIGHTNESS
469.0 nits
6.5 Hours
BATTERY LIFE
6.5 Hours
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.7/10
PORTABILITY SCORE
7.0/10
The Lenovo Legion 7 and Dell Inspiron 15 3525 are both good for general use, though the Lenovo Legion 7 is somewhat better.
The Dell Inspiron 15 3525, with modest RAM and a satisfactory screen, offers fair performance and portability for general use, but trails behind in screen quality and multitasking capabilities. The Lenovo Legion 7, on the other hand, excels with superior CPU, double the RAM, and a higher-resolution screen, providing good performance for general use at the expense of being less portable and more expensive.
Gaming and AI
6.0
7.8
3.6/10
OVERALL GPU SCORE
8.4/10
1920 x 1080
RESOLUTION
2560 x 1600
60Hz
REFRESH RATE
165Hz
No
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.5/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion 7 is good for gaming and AI, while the Dell Inspiron 15 3525 is only fair.
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
6.4
8.2
5.8/10
OVERALL CPU SCORE
7.4/10
3.6/10
OVERALL GPU SCORE
8.4/10
8.0 GB
RAM
16.0 GB
The Lenovo Legion 7 is very good for engineering and design, while the Dell Inspiron 15 3525 is only fair.
The Dell Inspiron 15 3525 is deemed fair for engineering and design due to a less powerful processor, lower memory capacity, and an integrated GPU which are less suitable for demanding tasks, coupled with a standard resolution display. Meanwhile, the Lenovo Legion 7 excels with a stronger CPU, double the RAM, a high-end discrete GPU, and a higher resolution screen with better color accuracy, which are crucial for intensive engineering and design work; however, it is less portable and has slightly higher operating noise.
Content Creation
7.1
7.9
5.8/10
OVERALL CPU SCORE
7.4/10
1920 x 1080
RESOLUTION
2560 x 1600
8.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Legion 7 and Dell Inspiron 15 3525 are both good for content creation, though the Lenovo Legion 7 is somewhat better.
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
6.9
7.6
5.8/10
OVERALL CPU SCORE
7.4/10
8.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1600
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Lenovo Legion 7 is good for software development, while the Dell Inspiron 15 3525 is only fair.
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
6.3
8.3
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
165Hz
259.0 nits
BRIGHTNESS
469.0 nits
The Lenovo Legion 7 has a better screen than the Dell Inspiron 15 3525 for general use, gaming and AI, engineering and design, content creation, and software development.
The Dell Inspiron 15 3525 has a screen that's sufficient for browsing and watching videos, with an acceptable resolution and brightness, but lacks the wider color gamuts needed for precision in engineering and the high refresh rates desired for smooth 3D rendering and gaming. The Lenovo Legion 7, with its higher resolution and brightness, offers clearer and more vibrant visuals that benefit general tasks and detailed design work, but falls short in gaming due to the lack of a high refresh rate screen despite good color reproduction. Overall, a screen's suitability varies significantly based on a user's specific needs, with the Inspiron tailored for casual use and the Legion for more demanding visual work but not for high-end gaming.
Portability
Good
Good
15.6in
SIZE
16.0in
3.7 lbs
WEIGHT
5.5 lbs
0.7in
THICKNESS
0.8in
The Dell Inspiron 15 3525 and Lenovo Legion 7 both have good portability, though the Dell Inspiron 15 3525 has somewhat better portability.
The most portable laptops are small, thin, and light.
Build Quality
6.2
8.5
The Lenovo Legion 7 has very good build quality, while the Dell Inspiron 15 3525 has only fair build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$400
$1,500
$0
$500
$1,000
$1,500
$2,000
$2,500
The Dell Inspiron 15 3525 has a price of $400 and the Lenovo Legion 7 costs $1,500.
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Key similarities
Battery
6.5 Hours
6.5 Hours
The Dell Inspiron 15 3525 has 6.5 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.
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How the Dell Inspiron 15 3525 and the Lenovo Legion 7 compare to other laptops
Spec Comparison
 |  | |
| Dell Inspiron 15 3525 | Lenovo Legion 7 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$400 | $1,500 | ||
Release Date | |||
Release Date | March 1, 2022 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.1'' x 9.3'' x 0.75'' | 14'' x 10.3'' x 0.86'' | |
Weight | |||
Weight | 3.71 lbs | 5.5 lbs | |
Width | |||
Width | 14.11" | 14.01" | |
Depth | |||
Depth | 9.27" | 10.27" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 5 5625U | AMD Ryzen 7 5800H | |
RAM | |||
RAM | 8 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 4 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6.5 Hours | 6.5 Hours | |
Battery Capacity | |||
Battery Capacity | 41 Wh | 80 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 259 nits | 469 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 6.3/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.8/10 | 7/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.5/10 | 6.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 6.5/10 | 8.8/10 | |
Webcam | |||
Webcam | 720p | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | No | No | |
Backlit Keyboard | |||
Backlit Keyboard | No | Yes | |
Number Pad | |||
Number Pad | Yes | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 3 | |
USB-C ports | |||
USB-C ports | 1 | 3 | |
USB-C Charging | |||
USB-C Charging | No | Yes | |
Display Outputs | |||
Display Outputs | 1 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
Dell Inspiron 15 3525
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Dig into reviews and images
PCMag
Mark Knapp | January 2023
"Dell's Inspiron 15 (3525) is a peppy-enough and affordable-enough home or remote work machine, but it's not very ambitious; it does little to go beyond the basics. More the concern: It’s readily overshadowed by a number of machines that outperform and outclass it. Even if the Inspiron can get the job done today, its competition has the mettle to keep doing the job tomorrow in a way the Inspiron simply can’t promise. Many of its slightly higher-end rivals have to be on sale (and frequently are) to match it on price, but the Inspiron 15 (3525) is outclassed even by some similarly priced options, making it a difficult recommendation."
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 Inspiron 15 3525 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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About the laptop team
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