The Dell Inspiron 14 5425 is less expensive and offers good performance for general use with a decent display and battery life, plus it is lighter and therefore more portable than the Lenovo Legion Slim 7. However, the Lenovo Legion Slim 7, while more expensive, provides significantly better performance for 3D rendering, machine learning, engineering tasks, and intensive gaming, thanks to its powerful processor and graphics card, along with a higher resolution and refresh rate display. It’s heavier, which impacts portability, but has a longer battery life, making it suitable for demanding applications without needing frequent charging. 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 5425
Very good portability
Very good battery life
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
Very good keyboard
Key differences
General Use
7.7/10
8.2/10
1920 x 1200
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
279.0 nits
DISPLAY BRIGHTNESS
502.0 nits
12.0 Hours
BATTERY LIFE
7.0 Hours
7.5/10
KEYBOARD QUALITY SCORE
8.5/10
8.1/10
PORTABILITY SCORE
7.5/10
The Lenovo Legion Slim 7 16" is very good for general use, while the Dell Inspiron 14 5425 is good.
The Dell Inspiron 14 5425 is good for general use with ample RAM, a quality screen, and a long battery life, while being lightweight and hence, more portable. However, the Lenovo Legion Slim 7 stands out with a higher-quality display, more storage, and a stronger CPU, making it very good for general use, albeit with slightly less battery life and higher weight.
Gaming and AI
6.2/10
8.2/10
3.6/10
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 5425 is only fair.
PerfectRec’s Gaming and AI Score strongly emphasizes graphics processing capability, while also taking into account other factors that impact suitability for gaming and AI work.
Engineering and Design
7.0/10
8.6/10
6.8/10
OVERALL CPU SCORE
9.1/10
3.6/10
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 5425 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
7.5/10
8.3/10
6.8/10
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 5425 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.
Screen Quality
6.3/10
8.7/10
14.0in
SIZE
16.0in
1920 x 1200
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
240Hz
279.0 nits
BRIGHTNESS
502.0 nits
The Lenovo Legion Slim 7 has a better screen than the Dell Inspiron 14 5425 for general use, gaming and AI, engineering and design, content creation, and software development.
The Dell Inspiron 14 5425 likely offers an adequate display for everyday activities with reasonable resolution and brightness, but it falls short for specialized tasks due to limited color accuracy. The Lenovo Legion Slim 7 16" excels in color reproduction and clarity which is critical for professional engineering and design work, where precision in color and detail is paramount. However, both laptops' displays aren't optimized for gaming or 3D applications, where a high refresh rate is crucial for smooth motion, and their screens may not meet the rapid frame changes needed for optimal experiences in these areas.
Battery
12.0 Hours
7.0 Hours
The Dell Inspiron 14 5425 has 12 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.
Portability
Very Good
Good
14.0in
SIZE
16.0in
3.4 lbs
WEIGHT
4.4 lbs
0.7in
THICKNESS
0.6in
The Dell Inspiron 14 5425 has very good portability, while the Lenovo Legion Slim 7 16" has good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.0/10
7.6/10
The Lenovo Legion Slim 7 16" and Dell Inspiron 14 5425 both have good build quality, though the Lenovo Legion Slim 7 16" has somewhat better build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$479
$1,680
$0
$500
$1,000
$1,500
$2,000
$2,500
The Dell Inspiron 14 5425 has a price of $479 and the Lenovo Legion Slim 7 16" costs $1,680.
Although they have very similar scores, PerfectRec considers Lenovo Legion Slim 7 16" to be very good for software development, while the Dell Inspiron 14 5425 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.
Give feedback
We’re constantly working to improve.
How the Dell Inspiron 14 5425 and the Lenovo Legion Slim 7 16" compare to other laptops
"A slim chassis, an acceptable weight (1.6 kg) and a real-world battery life of almost 13 hours turn the Inspiron into a mobile companion. Good: The battery can not only be charged using Dell's proprietary power adapter, but also with a universal USB-C power adapter (min. 45 watts). Office and Internet applications are handled by the built-in combination of Ryzen 5 5625U APU and 16 GB of RAM just as easily as modest computer games. Heat and noise development are generally okay, but the laptop should work a bit quieter under full load."
"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 5425 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.
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
97,095
Recommendations made
21,038
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.