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Updated January 10, 2024·
If you're looking for a more powerful and versatile laptop for activities such as 3D rendering, machine learning, or other engineering applications, the ASUS ZenBook Pro 14 Duo is an excellent choice, with a higher-end processor and more RAM. It also features a superior display with higher resolution and color accuracy, but with a shorter battery life and smaller storage capacity when compared to the Dell Inspiron 15 3520. On the other hand, if you prioritize budget, the Dell Inspiron 15 is less expensive, has a larger storage capacity and slightly better battery life, but compromises on performance and display quality. Both are similar in weight, but the Dell's larger screen size may make it less portable than the ASUS. 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 Pro 14 Duo
- Very good for general use
- Very good for engineering and design
- Very good for software development
- Very good for content creation
- Very good overall display quality
- Good overall build quality
- Best in class speakers
- Good keyboard
Advantages of the Dell Inspiron 15 3520
- The Dell Inspiron 15 3520 has no clear advantages over the ASUS ZenBook Pro 14 Duo.
Key differences
General Use
8.6
6.9
2880 x 1800
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
357.0 nits
DISPLAY BRIGHTNESS
259.0 nits
6.0 Hours
BATTERY LIFE
6.5 Hours
7.5/10
KEYBOARD QUALITY SCORE
6.5/10
7.9/10
PORTABILITY SCORE
7.6/10
The ASUS ZenBook Pro 14 Duo is very good for general use, while the Dell Inspiron 15 3520 is only fair.
The ASUS ZenBook Pro 14 Duo stands out in general use due to its high-performance CPU, ample RAM, superior OLED screen quality, and higher resolution, which contribute to better multitasking and media experience. In contrast, the Dell Inspiron 15 3520, while also suitable for general use, has a more modest CPU, less RAM, and an IPS screen with lower resolution that results in less impressive performance and visual fidelity.
Gaming and AI
6.7
6.0
3.8/10
OVERALL GPU SCORE
3.6/10
2880 x 1800
RESOLUTION
1920 x 1080
120Hz
REFRESH RATE
120Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
8.7/10
FAN NOISE SCORE
7.5/10
The ASUS ZenBook Pro 14 Duo and Dell Inspiron 15 3520 are both only fair for gaming and AI, though the ASUS ZenBook Pro 14 Duo is somewhat better.
The ASUS ZenBook Pro 14 Duo is equipped with a higher-end GPU and an OLED screen offering a better quality display, which makes it better suited for gaming and 3D requirements compared to the Dell Inspiron 15 3520, which has a lower-tier GPU and an IPS screen that delivers fair display quality. Both laptops have similar screen refresh rates, but the GPU performance and screen quality are what set the ASUS apart for more graphically intensive tasks.
Engineering and Design
8.5
6.3
9.1/10
OVERALL CPU SCORE
5.8/10
3.8/10
OVERALL GPU SCORE
3.6/10
32.0 GB
RAM
8.0 GB
The ASUS ZenBook Pro 14 Duo is very good for engineering and design, while the Dell Inspiron 15 3520 is only fair.
The ASUS ZenBook Pro 14 Duo excels in engineering and design use thanks to its superior CPU, substantial RAM, high-quality GPU, and an OLED screen with excellent resolution and color accuracy, making it suitable for demanding tasks. In contrast, the Dell Inspiron 15 3520, with a mid-range CPU, less RAM, a basic GPU, and an IPS screen with lower resolution and color coverage, offers fair performance that is adequate for less intensive engineering work but falls short for advanced design applications.
Content Creation
8.6
7.0
9.1/10
OVERALL CPU SCORE
5.8/10
2880 x 1800
RESOLUTION
1920 x 1080
32.0 GB
RAM
8.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The ASUS ZenBook Pro 14 Duo is very good for content creation, while the Dell Inspiron 15 3520 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
8.2
6.7
9.1/10
OVERALL CPU SCORE
5.8/10
32.0 GB
RAM
8.0 GB
2880 x 1800
RESOLUTION
1920 x 1080
7.5/10
KEYBOARD QUALITY SCORE
6.5/10
The ASUS ZenBook Pro 14 Duo is very 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.
Screen Quality
8.6
6.8
14.5in
SIZE
15.6in
2880 x 1800
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
120Hz
REFRESH RATE
120Hz
357.0 nits
BRIGHTNESS
259.0 nits
The ASUS Zenbook Pro 14 Duo 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 Pro 14 Duo boasts a high-resolution display and OLED panel that renders vibrant colors and deep blacks, along with sufficient brightness, making it excellent for general use and suitable for precision tasks in engineering and design due to its wide color coverage. However, its likely standard refresh rate is a drawback for gaming and 3D applications, which demand high refresh rates for smooth visuals. The Dell Inspiron 15 3520, with a fair screen that meets basic needs, may suffice for everyday tasks and entry-level design work, yet it doesn't excel in any particular area, with modest color accuracy and screen refresh rate not optimal for high-end gaming or professional design work.
Build Quality
7.6
6.2
The ASUS ZenBook Pro 14 Duo 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
$1,299
$329
$0
$500
$1,000
$1,500
$2,000
The ASUS ZenBook Pro 14 Duo has a price of $1,299 and the Dell Inspiron 15 3520 costs $329.
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Key similarities
Battery
6.0 Hours
6.5 Hours
The ASUS Zenbook Pro 14 Duo has 6 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
Good
Good
14.5in
SIZE
15.6in
3.7 lbs
WEIGHT
3.6 lbs
0.7in
THICKNESS
0.8in
The ASUS ZenBook Pro 14 Duo and Dell Inspiron 15 3520 both have good portability.
The most portable laptops are small, thin, and light.
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How the ASUS ZenBook Pro 14 Duo and the Dell Inspiron 15 3520 compare to other laptops
Spec Comparison
 |  | |
| ASUS ZenBook Pro 14 Duo | Dell Inspiron 15 3520 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,299 | $329 | ||
Release Date | |||
Release Date | June 1, 2022 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 12.7'' x 8.9'' x 0.77'' | 14.1'' x 9.3'' x 0.83'' | |
Weight | |||
Weight | 3.75 lbs | 3.65 lbs | |
Width | |||
Width | 12.74" | 14.11" | |
Depth | |||
Depth | 8.85" | 9.27" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-12700H | Intel i3-1215U | |
RAM | |||
RAM | 32 GB | 8 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 1024 GB | 256 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6 Hours | 6.5 Hours | |
Battery Capacity | |||
Battery Capacity | 76 Wh | 41 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14.5" | 15.6" | |
Display Technology | |||
Display Technology | OLED | IPS | |
Resolution | |||
Resolution | 2880 x 1800 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 120Hz | 120Hz | |
Display Brightness | |||
Display Brightness | 357 nits | 259 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 6.3/10 | |
Portability Score | |||
Portability Score | 7.9/10 | 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 | 8.8/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 7.5/10 | 6.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.6/10 | 6.5/10 | |
Webcam | |||
Webcam | 720p | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | No | 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 Pro 14 Duo
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Dig into reviews and images
PCWorld
Dominic Bayley | December 2022
"The Zenbook Pro 14 Duo OLED is a well-tuned instrument for content creators, excelling at a range of general office tasks as well as tasks that require a little more grunt like encoding and 3D rendering. The big attraction is the laptop’s dual displays. They’re the best ones we’ve used in an Asus Zenbook Duo laptop to date with a spate of year-on-year improvements that make the visuals more striking and the cross-screen integration easier than ever before."
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 Pro 14 Duo 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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