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Updated January 12, 2024·
The ASUS ZenBook Pro 14 Duo offers you superior performance suitable for intensive tasks, such as 3D modeling, machine learning, or high-end gaming, thanks to its higher-tier processor and OLED screen with a larger color range and faster refresh rate. However, it's less portable due to its weight and dimensions. The Dell Inspiron 15 3511, while less expensive, provides adequate performance for general use and casual computing, with the added advantage of a larger screen size, but it has a lower-quality display and might struggle with more demanding applications. If your budget allows and you need a powerful device for specialized tasks, go for the ASUS, but if you prioritize a more budget-friendly option for everyday use, the Dell Inspiron is suitable. 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 3511
- The Dell Inspiron 15 3511 has no clear advantages over the ASUS ZenBook Pro 14 Duo.
Key differences
General Use
8.6
7.6
2880 x 1800
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
357.0 nits
DISPLAY BRIGHTNESS
230.0 nits
6.0 Hours
BATTERY LIFE
6.5 Hours
7.5/10
KEYBOARD QUALITY SCORE
6.5/10
7.9/10
PORTABILITY SCORE
7.7/10
The ASUS ZenBook Pro 14 Duo is very good for general use, while the Dell Inspiron 15 3511 is good.
The ASUS ZenBook Pro 14 Duo offers a superior OLED screen, higher quality speakers, and more efficient heat management compared to the Dell Inspiron 15 3511, which, although good for general use, has a standard IPS display and tends to run quietly with excellent operating noise management.
Gaming and AI
6.7
6.2
3.8/10
OVERALL GPU SCORE
3.6/10
2880 x 1800
RESOLUTION
1920 x 1080
120Hz
REFRESH RATE
60Hz
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 3511 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 better suited for gaming and 3D applications mainly because of its higher screen refresh rate, which results in smoother motion and improved gaming experience. Additionally, the more powerful CPU in the ZenBook enhances performance in demanding tasks, while both laptops house the same level of GPU, the ZenBook's superior screen quality due to OLED technology and higher resolution also contributes to a better visual experience compared to the Dell Inspiron 15 3511's IPS display.
Engineering and Design
8.5
7.0
9.1/10
OVERALL CPU SCORE
4.9/10
3.8/10
OVERALL GPU SCORE
3.6/10
32.0 GB
RAM
32.0 GB
The ASUS ZenBook Pro 14 Duo is very good for engineering and design, while the Dell Inspiron 15 3511 is good.
The ASUS ZenBook Pro 14 Duo is highly suitable for engineering and design due to its more powerful Intel i7 processor, higher quality OLED screen with better color coverage, and advanced GPU which supports Hardware Ray Tracing. In contrast, the Dell Inspiron 15 3511, while still good for engineering with the same amount of RAM and a capable Intel i5 processor, falls short with a lower-quality IPS display and a less capable GPU, making it less favorable for tasks that demand high graphics performance and color accuracy.
Content Creation
8.6
7.5
9.1/10
OVERALL CPU SCORE
4.9/10
2880 x 1800
RESOLUTION
1920 x 1080
32.0 GB
RAM
32.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The ASUS ZenBook Pro 14 Duo is very good for content creation, while the Dell Inspiron 15 3511 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
7.3
9.1/10
OVERALL CPU SCORE
4.9/10
32.0 GB
RAM
32.0 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 3511 is good.
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
6.0
14.5in
SIZE
15.6in
2880 x 1800
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
120Hz
REFRESH RATE
60Hz
357.0 nits
BRIGHTNESS
230.0 nits
The ASUS Zenbook Pro 14 Duo has a better screen than the Dell Inspiron 15 3511 for general use, gaming and AI, engineering and design, software development, and content creation.
If you prioritize screen clarity and vivid imagery for tasks like document editing and media consumption, the ASUS ZenBook Pro 14 Duo’s high resolution and brightness make it an excellent choice, whereas the Dell Inspiron 15 may suffice but won't be as remarkable. For engineering and design, where precise color representation is crucial, the ASUS's wider color gamuts ensure more accurate visual work, while the Dell's modest color range may not be optimal for professional design tasks. When it comes to gaming and 3D applications, the ASUS is less ideal due to a lower refresh rate, complicating smooth motion portrayal, while the Dell, despite its fair resolution and panel type, will also fall short for high-end gaming due to similar limitations.
Build Quality
7.6
6.2
The ASUS ZenBook Pro 14 Duo has good build quality, while the Dell Inspiron 15 3511 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
$580
$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 3511 costs $580.
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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 3511 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
3.7 lbs
0.7in
THICKNESS
0.7in
The ASUS ZenBook Pro 14 Duo and Dell Inspiron 15 3511 both have good portability.
The most portable laptops are small, thin, and light.
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We’re constantly working to improve.
How the ASUS ZenBook Pro 14 Duo and the Dell Inspiron 15 3511 compare to other laptops
Spec Comparison
 |  | |
| ASUS ZenBook Pro 14 Duo | Dell Inspiron 15 3511 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,299 | $580 | ||
Release Date | |||
Release Date | June 1, 2022 | January 1, 2021 | |
Overall Dimensions | |||
Overall Dimensions | 12.7'' x 8.9'' x 0.77'' | 14.1'' x 9.3'' x 0.74'' | |
Weight | |||
Weight | 3.75 lbs | 3.7 lbs | |
Width | |||
Width | 12.74" | 14.11" | |
Depth | |||
Depth | 8.85" | 9.27" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-12700H | Intel i5-1135G7 | |
RAM | |||
RAM | 32 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 1024 GB | 1024 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 | 60Hz | |
Display Brightness | |||
Display Brightness | 357 nits | 230 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 6.3/10 | |
Portability Score | |||
Portability Score | 7.9/10 | 7.8/10 | |
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 | 3 | |
USB-C ports | |||
USB-C ports | 2 | 0 | |
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 3511
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Dig into reviews and images
PCMag
Zachary Cuevas | November 2021
"The Dell Inspiron 15 3000 (3511) is a solid, if unremarkable, 15-inch budget laptop. It improves on many of the issues we had with the previous 3505 model, and with the inclusion of Windows 11, the 3511 is already a step above its competition. The lack of a USB-C port, the subpar speakers, and the dim display are drawbacks to factor in, but it's still one of the better 15-inch budget laptops on the market, especially when you consider it's under $400."
Get a great deal on the ASUS ZenBook Pro 14 Duo or the Dell Inspiron 15 3511
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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