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The PerfectRec laptop team Learn more
Updated January 12, 2024·
The ASUS Zenbook 14 and Dell Inspiron 15 3520 are similarly priced, but they cater to different needs. The Zenbook 14 has an OLED display, which means it offers superior visual quality with vibrant colors and deeper blacks, and it's also lighter and more compact, making it easier to carry around. In contrast, the Inspiron 15 has a larger screen size and may have a longer battery life, advantageous for extended work sessions without access to power. If top-notch screen quality and portability are more important to you, go for the ASUS Zenbook 14, while the Dell Inspiron 15 is suitable if you prefer a larger display and potentially longer unplugged usage. 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 ASUS Zenbook 14
- Good for general use
- Good for engineering and design
- Good for software development
- Very good overall display quality
- Good overall build quality
- Very good portability
- Good speakers
- Very good keyboard
Advantages of the Dell Inspiron 15 3520
- The Dell Inspiron 15 3520 has no clear advantages over the ASUS Zenbook 14.
Key differences
Engineering and Design
7.2
6.3
7.1/10
OVERALL CPU SCORE
5.8/10
3.7/10
OVERALL GPU SCORE
3.6/10
8.0 GB
RAM
8.0 GB
The ASUS Zenbook 14 is good for engineering and design, while the Dell Inspiron 15 3520 is only fair.
The ASUS Zenbook 14 is equipped with a more powerful Intel i5 processor and a higher-quality OLED screen, which are crucial for engineering and design tasks that demand fast processing and detailed visual work. In comparison, the Dell Inspiron 15 3520 comes with a less capable Intel i3 processor and an IPS screen, which translates to lower performance and screen quality, but at the cost of being less suitable for demanding engineering and design applications.
Screen Quality
8.3
6.8
14.0in
SIZE
15.6in
2880 x 1800
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
90Hz
REFRESH RATE
120Hz
339.0 nits
BRIGHTNESS
259.0 nits
The ASUS Zenbook 14 has a better screen than the Dell Inspiron 15 3520 for general use, gaming and AI, engineering and design, software development, and content creation.
The ASUS Zenbook 14's superior screen resolution and brightness enhance the visual experience, making it well-suited for general use and detailed engineering work, where clarity is key. For engineering and design, its color accuracy across wider color gamuts ensures that professionals can trust the display for precise color work. However, the lower refresh rate of the Zenbook makes it less ideal for gaming and 3D modeling, where smoother and quicker screen updates are crucial for an immersive experience.
Battery
8.0 Hours
6.5 Hours
The ASUS Zenbook 14 has 8 hours of battery life. The Dell Inspiron 15 3520 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
Very Good
Good
14.0in
SIZE
15.6in
3.0 lbs
WEIGHT
3.6 lbs
0.6in
THICKNESS
0.8in
The ASUS Zenbook 14 has very good portability, while the Dell Inspiron 15 3520 has good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.8
6.2
The ASUS Zenbook 14 has good build quality, while the Dell Inspiron 15 3520 has only fair build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$300
$329
$150
$200
$250
$300
$350
$400
$450
$500
The ASUS Zenbook 14 has a price of $300 and the Dell Inspiron 15 3520 costs $329.
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Key similarities
General Use
7.2
6.9
2880 x 1800
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
339.0 nits
DISPLAY BRIGHTNESS
259.0 nits
8.0 Hours
BATTERY LIFE
6.5 Hours
8.0/10
KEYBOARD QUALITY SCORE
6.5/10
8.6/10
PORTABILITY SCORE
7.6/10
Although they have very similar scores, PerfectRec considers ASUS Zenbook 14 to be good for general use, while the Dell Inspiron 15 3520 is only fair.
The ASUS Zenbook 14 offers better screen quality with an OLED display and superior color coverage, a more powerful CPU for faster performance, and a lightweight design enhancing portability, but it has average heat management, affecting comfort during prolonged use. In contrast, the Dell Inspiron 15 3520, despite its larger screen, offers lower resolution and less color accuracy, a less powerful CPU, and heavier build which reduces portability, but it excels in heat management, ensuring it stays cooler during use.
Gaming and AI
6.1
6.0
3.7/10
OVERALL GPU SCORE
3.6/10
2880 x 1800
RESOLUTION
1920 x 1080
90Hz
REFRESH RATE
120Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
6.5/10
FAN NOISE SCORE
7.5/10
The ASUS Zenbook 14 and Dell Inspiron 15 3520 are both only fair for gaming and AI.
The ASUS Zenbook 14, with its higher-tier Intel Iris Xe graphics and OLED display, provides better visual quality for gaming and 3D applications than the Dell Inspiron 15 3520, despite the Inspiron having a higher screen refresh rate which can make games appear smoother. However, the Inspiron's lower-performance Intel UHD graphics may not render games as effectively, despite its potential advantage in smoother on-screen motion due to the higher refresh rate.
Content Creation
7.3
7.0
7.1/10
OVERALL CPU SCORE
5.8/10
2880 x 1800
RESOLUTION
1920 x 1080
8.0 GB
RAM
8.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The ASUS Zenbook 14 and Dell Inspiron 15 3520 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
7.2
6.7
7.1/10
OVERALL CPU SCORE
5.8/10
8.0 GB
RAM
8.0 GB
2880 x 1800
RESOLUTION
1920 x 1080
8.0/10
KEYBOARD QUALITY SCORE
6.5/10
Although they have very similar scores, PerfectRec considers ASUS Zenbook 14 to be good for software development, while the Dell Inspiron 15 3520 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.
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How the ASUS Zenbook 14 and the Dell Inspiron 15 3520 compare to other laptops
Spec Comparison
 |  | |
| ASUS Zenbook 14 | Dell Inspiron 15 3520 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$300 | $329 | ||
Release Date | |||
Release Date | May 1, 2022 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 12.4'' x 8.7'' x 0.67'' | 14.1'' x 9.3'' x 0.83'' | |
Weight | |||
Weight | 3.06 lbs | 3.65 lbs | |
Width | |||
Width | 12.35" | 14.11" | |
Depth | |||
Depth | 8.69" | 9.27" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i5-1240P | Intel i3-1215U | |
RAM | |||
RAM | 8 GB | 8 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 256 GB | 256 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 8 Hours | 6.5 Hours | |
Battery Capacity | |||
Battery Capacity | 75 Wh | 41 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14" | 15.6" | |
Display Technology | |||
Display Technology | OLED | IPS | |
Resolution | |||
Resolution | 2880 x 1800 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 90Hz | 120Hz | |
Display Brightness | |||
Display Brightness | 339 nits | 259 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.8/10 | 6.3/10 | |
Portability Score | |||
Portability Score | 8.6/10 | 7.7/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 6.5/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8/10 | 6.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7.5/10 | 6.5/10 | |
Webcam | |||
Webcam | 720p | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | No | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 1 | 2 | |
USB-C ports | |||
USB-C ports | 2 | 1 | |
USB-C Charging | |||
USB-C Charging | Yes | No | |
Display Outputs | |||
Display Outputs | 3 | 1 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | N/A | |
Shopping
ASUS Zenbook 14
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Dig into reviews and images
NotebookCheck
Florian Glaser | August 2022
"Users who travel frequently and are looking for a portable laptop are in the right place with the Asus ZenBook 14. The sleek case is extremely light (1.2 kg) and surprisingly thin (1.5 cm). Outdoor use is also enjoyable thanks to the bright Full HD display, which is something that can rarely be said about laptops with TN or IPS panels. The excellent battery life complements this as well. Longer trips are no problem with the ZenBook 14. Another plus point is the high-performance Ryzen 7 5700U, which often leaves the Intel competition in the dust thanks to its large number of cores."
Dell Inspiron 15 3520
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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. Plus, those alternatives are much more enjoyable after work."
Get a great deal on the ASUS Zenbook 14 or the Dell Inspiron 15 3520
About ASUS
ASUS, a Taiwanese electronics brand, is one of the largest personal computer vendor by market share. The majority of their laptops are targeted towards personal use or gaming. Their most popular product lines include the budget-friendly VivoBook, more premium ZenBook, and their TUF and ROG gaming laptops, the latter of which has a reputation for excellent gaming performance.
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.
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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.
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