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What we think
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Updated January 10, 2024·
If performance and gaming are priorities, the Lenovo Legion Slim 7 is a robust choice with a more powerful CPU and graphics, along with a higher refresh rate display ideal for fast-paced games, and a larger, sharper screen. However, it comes at a higher price and heavier weight compared to the Dell Inspiron 14 7420. The Dell is more economical and offers commendable general usage performance, a lighter build, and longer battery life, making it well-suited for everyday tasks and travel. Choose the Dell for cost-effective portability or the Lenovo for high-end gaming and demanding tasks. 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 14 7420
- Very good portability
Advantages of the Lenovo Legion Slim 7 16"
- Very good for general use
- Very good for engineering and design
- Very good for gaming and AI
- Very good for software development
- Very good for content creation
- Very good overall display quality
- Very good speakers
Key differences
General Use
7.5
8.2
1920 x 1200
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
260.0 nits
DISPLAY BRIGHTNESS
502.0 nits
7.5 Hours
BATTERY LIFE
7.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
8.5/10
8.3/10
PORTABILITY SCORE
7.5/10
The Lenovo Legion Slim 7 16" is very good for general use, while the Dell Inspiron 14 7420 is good.
The Dell Inspiron 14 7420 is appreciated for its versatility as a 2-in-1 device offering good portability and adequate battery life for general use, albeit with a lower screen resolution and less impressive graphics performance compared to the Lenovo Legion Slim 7 16", which stands out with a higher-resolution display, a more powerful CPU and GPU suitable for more demanding tasks, and a longer battery life, though it is slightly less portable due to its larger size and weight.
Gaming and AI
6.2
8.2
3.7/10
OVERALL GPU SCORE
8.3/10
1920 x 1200
RESOLUTION
2560 x 1600
60Hz
REFRESH RATE
240Hz
No
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.5/10
FAN NOISE SCORE
7.5/10
The Lenovo Legion Slim 7 16" is very good for gaming and AI, while the Dell Inspiron 14 7420 is only fair.
The Lenovo Legion Slim 7 16" boasts a more powerful Nvidia RTX GPU and a higher screen refresh rate, optimal for fast-paced gaming and 3D rendering, while the Dell Inspiron 14 7420 has a less robust Intel i7 Iris Xe graphics solution and a standard-refresh-rate screen, making it less suitable for those specific demands.
Engineering and Design
6.9
8.6
6.9/10
OVERALL CPU SCORE
9.1/10
3.7/10
OVERALL GPU SCORE
8.3/10
16.0 GB
RAM
16.0 GB
The Lenovo Legion Slim 7 16" is very good for engineering and design, while the Dell Inspiron 14 7420 is only fair.
The Lenovo Legion Slim 7 16" stands out for engineering and design use with a powerful AMD Ryzen processor, a high-end Nvidia RTX GPU, and superior screen quality, making it very suitable for demanding tasks and visual work. In comparison, the Dell Inspiron 14 7420, while still good, offers a mid-range Intel i7 CPU, integrated graphics, and a screen that doesn't match the Lenovo's, which might impact its performance and visual clarity for intensive engineering applications.
Content Creation
7.3
8.3
6.9/10
OVERALL CPU SCORE
9.1/10
1920 x 1200
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Legion Slim 7 16" is very good for content creation, while the Dell Inspiron 14 7420 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
8.0
6.9/10
OVERALL CPU SCORE
9.1/10
16.0 GB
RAM
16.0 GB
1920 x 1200
RESOLUTION
2560 x 1600
8.0/10
KEYBOARD QUALITY SCORE
8.5/10
The Lenovo Legion Slim 7 16" is very good for software development, while the Dell Inspiron 14 7420 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
6.2
8.7
14.0in
SIZE
16.0in
1920 x 1200
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
240Hz
260.0 nits
BRIGHTNESS
502.0 nits
The Lenovo Legion Slim 7 has a better screen than the Dell Inspiron 14 7420 for general use, gaming and AI, engineering and design, content creation, and software development.
The Dell Inspiron 14 7420, with its fair screen quality, will serve adequately for general tasks with its resolution and brightness, but for tasks like engineering and design, its range of colors isn't as broad, leading to less accurate representations. The Lenovo Legion Slim 7 16" excels in both general use and engineering with a sharp display and more vibrant colors, offering a richer experience when color precision is key. However, both laptops aren't ideal for gaming or 3D work, as their screens don't refresh as quickly as required by such fast-paced, graphics-intensive activities.
Portability
Very Good
Good
14.0in
SIZE
16.0in
3.6 lbs
WEIGHT
4.4 lbs
0.6in
THICKNESS
0.6in
The Dell Inspiron 14 7420 has very good portability, while the Lenovo Legion Slim 7 16" has good portability.
The most portable laptops are small, thin, and light.
Cost
$801
$1,344
$0
$500
$1,000
$1,500
$2,000
The Dell Inspiron 14 7420 has a price of $801 and the Lenovo Legion Slim 7 16" costs $1,344.
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Key similarities
Battery
7.5 Hours
7.0 Hours
The Dell Inspiron 14 7420 has 7.5 hours of battery life. The Lenovo Legion Slim 7 has 7 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.
Build Quality
7.4
7.6
The Lenovo Legion Slim 7 16" and Dell Inspiron 14 7420 both have good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
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We’re constantly working to improve.
How the Dell Inspiron 14 7420 and the Lenovo Legion Slim 7 16" compare to other laptops
Spec Comparison
 |  | |
| Dell Inspiron 14 7420 | Lenovo Legion Slim 7 16" |
GENERAL | |||
|---|---|---|---|
| Price | |||
$801 | $1,344 | ||
Release Date | |||
Release Date | May 1, 2022 | May 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 12.4'' x 9'' x 0.66'' | 14.1'' x 10.2'' x 0.69'' | |
Weight | |||
Weight | 3.61 lbs | 4.4 lbs | |
Width | |||
Width | 12.36" | 14.08" | |
Depth | |||
Depth | 8.96" | 10.21" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-1255U | AMD Ryzen 7 7840HS | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 1 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7.5 Hours | 7 Hours | |
Battery Capacity | |||
Battery Capacity | 54 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1200 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 260 nits | 502 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.4/10 | 7.6/10 | |
Portability Score | |||
Portability Score | 8.3/10 | 7.5/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.5/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 6.8/10 | 8/10 | |
Webcam | |||
Webcam | 1080p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 1 | 3 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
Dell Inspiron 14 7420
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Dig into reviews and images
NotebookCheck
Allen Ngo | June 2022
"Notable qualities of the Inspiron 7420 2-in-1 include the 16:10 aspect ratio, strong hinges, 12th gen Intel CPU with optional GeForce MX graphics, and easy serviceability. Such features would typically cost hundreds of dollars more on higher-end alternatives from competing manufacturers. The value proposition is therefore relatively high for users looking to maximize bang for the buck."
Lenovo Legion Slim 7 16"
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Dig into reviews and images
NotebookCheck
Benjamin Herzig | November 2022
"The Lenovo Legion Slim 7 is a slim Legion notebook that is just as excellent with Nvidia & Intel. However, the Legion Slim 7i slightly sullied by lacklustre battery life. You get a slim aluminium chassis, great input devices, decent port selection, fast high-quality WQXGA display and great performance. Supporting Thunderbolt 4 is one advantage of the Intel/Nvidia model tested in this review. Moreover, this variant has slightly higher CPU performance as well as better GPU performance in certain applications (e.g. CUDA-based apps). The Lenovo Legion S7i is thin, premium and performant – but less efficient than its AMD counterpart."
Get a great deal on the Dell Inspiron 14 7420 or the Lenovo Legion Slim 7 16"
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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