A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec laptop team Learn more
Updated January 12, 2024·
If you prioritize a high-resolution screen and better portability, the ASUS Zenbook 14 is an excellent choice due to its OLED display and lighter weight. On the other hand, if you require more storage and memory, which is ideal for demanding tasks and multitasking, the Dell Inspiron 15 3511 offers a larger storage capacity and more RAM. The Dell is also likely to be heavier, making it less convenient to carry around. Furthermore, the ASUS is more budget-friendly, which means you can save money, but you compromise on storage and memory compared to the Dell. It's important to consider these differences in relation to the kind of work you will do on your laptop and whether you'll be traveling with it frequently. 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
- Very good overall display quality
- Good overall build quality
- Very good portability
- Good speakers
- Very good keyboard
Advantages of the Dell Inspiron 15 3511
- The Dell Inspiron 15 3511 has no clear advantages over the ASUS Zenbook 14.
Key differences
Screen Quality
8.3
6.0
14.0in
SIZE
15.6in
2880 x 1800
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
90Hz
REFRESH RATE
60Hz
339.0 nits
BRIGHTNESS
230.0 nits
The ASUS Zenbook 14 has a better screen than the Dell Inspiron 15 3511 for general use, gaming and AI, and engineering and design, while the Dell Inspiron 15 3511 has a better screen for software development.
If you prioritize vibrant colors and sharp images in your everyday tasks, the Zenbook 14's panel would be a better fit due to its resolution and brightness, enhancing your general use experience. When it comes to engineering and design, the same laptop offers a wider color gamut, ensuring more accurate color representation which is essential for detailed work. However, for immersive gaming or working with 3D applications, both laptops fall short on refresh rates, making neither ideal, though the Zenbook 14 may still edge out slightly because of its somewhat better resolution and panel technology.
Battery
8.0 Hours
6.5 Hours
The ASUS Zenbook 14 has 8 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
Very Good
Good
14.0in
SIZE
15.6in
3.0 lbs
WEIGHT
3.7 lbs
0.6in
THICKNESS
0.7in
The ASUS Zenbook 14 has very good portability, while the Dell Inspiron 15 3511 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 3511 has only fair build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$300
$580
$0
$200
$400
$600
$800
$1,000
The ASUS Zenbook 14 has a price of $300 and the Dell Inspiron 15 3511 costs $580.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Key similarities
General Use
7.2
7.6
2880 x 1800
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
339.0 nits
DISPLAY BRIGHTNESS
230.0 nits
8.0 Hours
BATTERY LIFE
6.5 Hours
8.0/10
KEYBOARD QUALITY SCORE
6.5/10
8.6/10
PORTABILITY SCORE
7.7/10
The Dell Inspiron 15 3511 and ASUS Zenbook 14 are both good for general use.
PerfectRec’s General Use Score takes into account the many different features of the laptop that make it more or less suitable for general productivity, web browsing, streaming, video calls, and running a wide variety of apps and programs.
Gaming and AI
6.1
6.2
3.7/10
OVERALL GPU SCORE
3.6/10
2880 x 1800
RESOLUTION
1920 x 1080
90Hz
REFRESH RATE
60Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
6.5/10
FAN NOISE SCORE
7.5/10
The Dell Inspiron 15 3511 and ASUS Zenbook 14 are both only fair for gaming and AI.
The ASUS Zenbook 14 and the Dell Inspiron 15 3511 are considered fair for gaming and 3D because their integrated Iris Xe graphics can handle lighter gaming and 3D tasks, but won't be ideal for high-end gaming due to the limitations of integrated GPUs compared to dedicated ones. The Zenbook's OLED screen and higher refresh rate may offer a better visual experience, while the Inspiron provides a larger screen but with lower resolution and refresh rate, which could affect the smoothness and detail in games and 3D applications.
Engineering and Design
7.2
7.0
7.1/10
OVERALL CPU SCORE
4.9/10
3.7/10
OVERALL GPU SCORE
3.6/10
8.0 GB
RAM
32.0 GB
The ASUS Zenbook 14 and Dell Inspiron 15 3511 are both good for engineering and design.
The ASUS Zenbook 14 boasts a high-resolution OLED screen and is lightweight, making it suitable for design work and portability, while the Dell Inspiron 15 3511 offers more RAM and storage, which suits engineering tasks that need more memory and data handling capacity; however, it is heavier and has a lower screen resolution. Both laptops have similar CPUs and integrated graphics, but the ASUS's superior screen and Dell's higher RAM and storage reflect their respective leanings towards design and engineering usage.
Content Creation
7.3
7.5
7.1/10
OVERALL CPU SCORE
4.9/10
2880 x 1800
RESOLUTION
1920 x 1080
8.0 GB
RAM
32.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The Dell Inspiron 15 3511 and ASUS Zenbook 14 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
7.3
7.1/10
OVERALL CPU SCORE
4.9/10
8.0 GB
RAM
32.0 GB
2880 x 1800
RESOLUTION
1920 x 1080
8.0/10
KEYBOARD QUALITY SCORE
6.5/10
The Dell Inspiron 15 3511 and ASUS Zenbook 14 are both good for software development.
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.
Give feedback
We’re constantly working to improve.
How the ASUS Zenbook 14 and the Dell Inspiron 15 3511 compare to other laptops
Spec Comparison
 |  | |
| ASUS Zenbook 14 | Dell Inspiron 15 3511 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$300 | $580 | ||
Release Date | |||
Release Date | May 1, 2022 | January 1, 2021 | |
Overall Dimensions | |||
Overall Dimensions | 12.4'' x 8.7'' x 0.67'' | 14.1'' x 9.3'' x 0.74'' | |
Weight | |||
Weight | 3.06 lbs | 3.7 lbs | |
Width | |||
Width | 12.35" | 14.11" | |
Depth | |||
Depth | 8.69" | 9.27" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i5-1240P | Intel i5-1135G7 | |
RAM | |||
RAM | 8 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 256 GB | 1024 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 | 60Hz | |
Display Brightness | |||
Display Brightness | 339 nits | 230 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.8/10 | 6.3/10 | |
Portability Score | |||
Portability Score | 8.6/10 | 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 | 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 | 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 14
See more
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 3511
See more
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 14 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.
Give feedback
We're constantly perfecting our model
Laptop guides you might be interested in
More comparisons for you
FAQs
FAQs about laptops
Why trust us
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.
By the numbers
380
Laptops evaluated
48,640
Laptops stats compiled
13
Proprietary Laptops ratings developed
96,795
Recommendations made
20,973
Consumer hours saved
About the laptop team
Joe Golden, Ph.D
CEO and Laptops Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Craig Russell
Laptops Expert
Craig is a UK-based laptops expert. Craig works in IT, where he recommends and supports laptops and PCs for clients and has been recommending laptops on Reddit for five years.
Featured in
