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Updated January 12, 2024·
If you prioritize high performance for intensive tasks like 3D rendering, machine learning, or gaming, the ASUS ZenBook Pro Duo 15 with its powerful processor and advanced graphics card is a better fit despite its higher cost and lower portability due to its weight. Its OLED display with high resolution is ideal for creative work. However, if you prefer a more budget-friendly option that covers general use cases, the Dell Inspiron 15 3511, while less powerful, is more portable owing to its lighter weight and offers a more standard experience suitable for everyday tasks like browsing and office applications. Both laptops have similar storage and memory capacity, yet their performance and intended use cases differ significantly. 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 Duo 15
- Very good for general use
- Excellent for engineering and design
- Good for gaming and AI
- 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 Duo 15.
Key differences
General Use
8.5
7.6
3840 x 2160
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
332.0 nits
DISPLAY BRIGHTNESS
230.0 nits
7.0 Hours
BATTERY LIFE
6.5 Hours
7.5/10
KEYBOARD QUALITY SCORE
6.5/10
7.1/10
PORTABILITY SCORE
7.7/10
The ASUS ZenBook Pro Duo 15 is very good for general use, while the Dell Inspiron 15 3511 is good.
The ASUS ZenBook Pro Duo 15 offers a high-end CPU, plentiful RAM, and an OLED screen, providing top-notch performance and vibrant display quality that's beneficial for various tasks, but it's heavier and has shorter battery life, affecting portability. In contrast, the Dell Inspiron 15 3511 has an adequate CPU for everyday tasks, sufficient RAM, and a decent IPS screen, but it's lighter with better battery life, making it more portable, though it may not handle intensive applications as smoothly as the ASUS.
Gaming and AI
7.8
6.2
7.8/10
OVERALL GPU SCORE
3.6/10
3840 x 2160
RESOLUTION
1920 x 1080
60Hz
REFRESH RATE
60Hz
Yes
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.7/10
FAN NOISE SCORE
7.5/10
The ASUS ZenBook Pro Duo 15 is good for gaming and AI, while the Dell Inspiron 15 3511 is only fair.
The ASUS ZenBook Pro Duo 15 is equipped with a powerful Nvidia RTX 3070 Ti graphics card and a high-resolution OLED screen, making it very suited for gaming and 3D applications. On the other hand, the Dell Inspiron 15 3511 uses the less powerful Intel Iris Xe integrated graphics and has a standard IPS screen with lower resolution, which is why it's only fair for the same tasks.
Engineering and Design
9.0
7.0
9.2/10
OVERALL CPU SCORE
4.9/10
7.8/10
OVERALL GPU SCORE
3.6/10
32.0 GB
RAM
32.0 GB
The ASUS ZenBook Pro Duo 15 is excellent for engineering and design, while the Dell Inspiron 15 3511 is good.
PerfectRec’s Engineering and Design Score takes into account the many different features of the laptop that make it more or less suitable for graphic design and 3D rendering work.
Content Creation
8.7
7.5
9.2/10
OVERALL CPU SCORE
4.9/10
3840 x 2160
RESOLUTION
1920 x 1080
32.0 GB
RAM
32.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The ASUS ZenBook Pro Duo 15 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
8.3
7.3
9.2/10
OVERALL CPU SCORE
4.9/10
32.0 GB
RAM
32.0 GB
3840 x 2160
RESOLUTION
1920 x 1080
7.5/10
KEYBOARD QUALITY SCORE
6.5/10
The ASUS ZenBook Pro Duo 15 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
8.3
6.0
15.6in
SIZE
15.6in
3840 x 2160
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
332.0 nits
BRIGHTNESS
230.0 nits
The ASUS Zenbook Pro Duo 15 has a better screen than the Dell Inspiron 15 3511 for general use, gaming and AI, engineering and design, software development, and content creation.
The ASUS ZenBook Pro Duo 15 offers superior screen resolution and brightness, along with high-quality panel types, making it excellent for general use and engineering tasks that require accurately displaying a wide range of colors. However, its lower refresh rate limits its effectiveness for gaming and 3D applications where smooth motion is crucial. The Dell Inspiron 15 3511, with fair screen quality, is more of a budget-friendly option suitable for everyday tasks and some engineering work but falls short for gaming and 3D due to similar refresh rate limitations and less advanced color coverage.
Portability
Good
Good
15.6in
SIZE
15.6in
5.1 lbs
WEIGHT
3.7 lbs
0.8in
THICKNESS
0.7in
The Dell Inspiron 15 3511 and ASUS ZenBook Pro Duo 15 both have good portability, though the Dell Inspiron 15 3511 has somewhat better portability.
The most portable laptops are small, thin, and light.
Build Quality
7.6
6.2
The ASUS ZenBook Pro Duo 15 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
$2,000
$560
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The ASUS ZenBook Pro Duo 15 has a price of $2,000 and the Dell Inspiron 15 3511 costs $560.
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Key similarities
Battery
7.0 Hours
6.5 Hours
The ASUS Zenbook Pro Duo 15 has 7 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.
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How the ASUS ZenBook Pro Duo 15 and the Dell Inspiron 15 3511 compare to other laptops
Spec Comparison
 |  | |
| ASUS ZenBook Pro Duo 15 | Dell Inspiron 15 3511 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,000 | $560 | ||
Release Date | |||
Release Date | February 1, 2023 | January 1, 2021 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 9.8'' x 0.85'' | 14.1'' x 9.3'' x 0.74'' | |
Weight | |||
Weight | 5.16 lbs | 3.7 lbs | |
Width | |||
Width | 14.17" | 14.11" | |
Depth | |||
Depth | 9.81" | 9.27" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-12900H | 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 | 7 Hours | 6.5 Hours | |
Battery Capacity | |||
Battery Capacity | 92 Wh | 41 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 15.6" | |
Display Technology | |||
Display Technology | OLED | IPS | |
Resolution | |||
Resolution | 3840 x 2160 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 332 nits | 230 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 6.3/10 | |
Portability Score | |||
Portability Score | 7.1/10 | 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 | 7.8/10 | 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 Duo 15
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Dig into reviews and images
PCWorld
Jared Newman | August 2021
"Benchmarks aside, the Asus ZenBook Pro Duo is hard to compare with other PCs. Its closest competition may be a multi-monitor desktop, or a laptop with an attached travel monitor. The Pro Duo is more portable and versatile than either of those options, especially with the software tools Asus has thrown on top. For a certain niche of artists, media creators, and gamers, all that might add up to something special, even if it’s unattainable for the rest of us."
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 Duo 15 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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