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What we think
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Updated March 22, 2024·
The Dell Inspiron 15 3511 will save you money and is suitable for everyday tasks and general use, but the Lenovo ThinkPad X13, while pricier, offers enhanced durability, better performance for demanding tasks such as engineering software, and its compact size makes it more portable. The ThinkPad usually has better battery life as well, which is ideal for working on the go, but if you're looking for a larger screen at a lower cost and don't need the extra durability or portability, the Dell Inspiron might be the better option for you. 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 Dell Inspiron 15 3511
- The Dell Inspiron 15 3511 has no clear advantages over the Lenovo ThinkPad X13.
Advantages of the Lenovo ThinkPad X13
- Very good for general use
- Very good for engineering and design
- Very good for software development
- Very good for content creation
- Very good overall build quality
- Very good portability
- Good speakers
- Excellent keyboard
Key differences
General Use
7.6
8.4
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
230.0 nits
DISPLAY BRIGHTNESS
321.0 nits
6.5 Hours
BATTERY LIFE
8.5 Hours
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.7/10
PORTABILITY SCORE
8.9/10
The Lenovo ThinkPad X13 is very good for general use, while the Dell Inspiron 15 3511 is good.
The Dell Inspiron 15 3511, while offering sufficient CPU performance and RAM for everyday tasks, may fall short in screen quality and battery life when compared to the Lenovo ThinkPad X13, which shines with its better display and longer battery endurance, making it a superior choice for general use. Despite the ThinkPad's higher portability due to its compact design, both laptops have similar storage capacity and decent keyboards, but the X13 also benefits from quieter operation and more effective heat management, which enhances overall user experience.
Engineering and Design
7.0
8.0
4.9/10
OVERALL CPU SCORE
8.8/10
3.6/10
OVERALL GPU SCORE
4.0/10
32.0 GB
RAM
32.0 GB
The Lenovo ThinkPad X13 is very good for engineering and design, while the Dell Inspiron 15 3511 is good.
The Dell Inspiron 15 3511, with its robust CPU, ample RAM, and dedicated GPU, excels in handling engineering software and design tasks that require high performance, yet its bulkier frame impacts portability. The Lenovo ThinkPad X13, while still powerful, places a premium on screen quality and keyboard comfort for long work sessions, and its more compact design offers easier mobility for those on the go, although it may not match the Inspiron in raw graphical tasks.
Content Creation
7.5
8.2
4.9/10
OVERALL CPU SCORE
8.8/10
1920 x 1080
RESOLUTION
1920 x 1200
32.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo ThinkPad X13 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
7.3
8.1
4.9/10
OVERALL CPU SCORE
8.8/10
32.0 GB
RAM
32.0 GB
1920 x 1080
RESOLUTION
1920 x 1200
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Lenovo ThinkPad X13 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
6.0
6.9
15.6in
SIZE
13.3in
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
230.0 nits
BRIGHTNESS
321.0 nits
The Lenovo ThinkPad X13 has a better screen than the Dell Inspiron 15 3511 for general use, gaming and AI, engineering and design, content creation, and software development.
The Dell Inspiron 15 3511 has adequate resolution and brightness for everyday tasks, but its color range and refresh rate aren't high, making it less ideal for color-sensitive work or smooth gameplay. The Lenovo ThinkPad X13, with better color accuracy and a more vibrant display, suits professionals in engineering and design, yet it also lacks a high refresh rate necessary for optimal 3D gaming experiences. Both are competent for daily computing needs, while neither would be the top choice for immersive gaming due to their lower refresh rates.
Battery
6.5 Hours
8.5 Hours
The Dell Inspiron 15 3511 has 6.5 hours of battery life. The Lenovo ThinkPad X13 has 8.5 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
Very Good
15.6in
SIZE
13.3in
3.7 lbs
WEIGHT
2.8 lbs
0.7in
THICKNESS
0.6in
The Lenovo ThinkPad X13 has very good portability, while the Dell Inspiron 15 3511 has good portability.
The most portable laptops are small, thin, and light.
Build Quality
6.2
8.5
The Lenovo ThinkPad X13 has very 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
$560
$1,459
$0
$500
$1,000
$1,500
$2,000
$2,500
The Dell Inspiron 15 3511 has a price of $560 and the Lenovo ThinkPad X13 costs $1,459.
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Key similarities
Gaming and AI
6.2
6.7
3.6/10
OVERALL GPU SCORE
4.0/10
1920 x 1080
RESOLUTION
1920 x 1200
60Hz
REFRESH RATE
60Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.5/10
FAN NOISE SCORE
7.5/10
The Lenovo ThinkPad X13 and Dell Inspiron 15 3511 are both only fair for gaming and AI.
The Dell Inspiron 15 3511 and Lenovo ThinkPad X13 have dedicated GPUs that can handle gaming and 3D tasks, but their lower screen refresh rates could limit the smoothness and responsiveness during high-paced games. While both come with capable CPUs and decent screen quality, they're not designed for the high demands of advanced gaming or professional 3D applications, making them a fair choice for casual or moderate use in these areas.
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How the Dell Inspiron 15 3511 and the Lenovo ThinkPad X13 compare to other laptops
Spec Comparison
 |  | |
| Dell Inspiron 15 3511 | Lenovo ThinkPad X13 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$560 | $1,459 | ||
Release Date | |||
Release Date | January 1, 2021 | September 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14.1'' x 9.3'' x 0.74'' | 11.9'' x 8.5'' x 0.63'' | |
Weight | |||
Weight | 3.7 lbs | 2.87 lbs | |
Width | |||
Width | 14.11" | 11.88" | |
Depth | |||
Depth | 9.27" | 8.46" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i5-1135G7 | AMD Ryzen 7 7840U | |
RAM | |||
RAM | 32 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 0 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6.5 Hours | 8.5 Hours | |
Battery Capacity | |||
Battery Capacity | 41 Wh | 41 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 13.3" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 1920 x 1200 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 230 nits | 321 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 6.3/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.8/10 | 8.9/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | Yes | |
Fan Noise Score | |||
Fan Noise Score | 7.5/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 6.5/10 | 7.5/10 | |
Webcam | |||
Webcam | 720p | 1440p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | No | Yes | |
Number Pad | |||
Number Pad | Yes | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 3 | 2 | |
USB-C ports | |||
USB-C ports | 0 | 2 | |
USB-C Charging | |||
USB-C Charging | No | Yes | |
Display Outputs | |||
Display Outputs | 1 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
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."
Lenovo ThinkPad X13
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Dig into reviews and images
NotebookCheck
Benjamin Herzig | September 2023
"The Lenovo ThinkPad X13 G4 has very good input devices, a wide array of security features and ports as well as 5G in the tested configuration. It is more compact and lightweight compared with its predecessor, and it has improved speakers and a slightly better webcam. On the other hand, the fan is more annoying and the performance is barely improved. The battery is worse as well, but this is primarily attributable to the OLED screen - if this aspect is important, buyers should choose the IPS Low Power LCD."
Get a great deal on the Dell Inspiron 15 3511 or the Lenovo ThinkPad X13
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.
About Lenovo
Lenovo is a Chinese technology company, and one of the largest personal computer vendor. They are well known for a variety of technology products, including laptops. Their consumer series include their entry level IdeaPad and LOQ series and mid-to-high-end Yoga and Legion series. On the business-oriented side, their series include their entry-level ThinkBook series and mid-to-high-end ThinkPad series. Lenovo laptops offer strong performance for reasonable prices, and are often on sale.
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