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G15 5520
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Legion Slim 5
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What we think

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The PerfectRec laptop team Learn more
Updated January 10, 2024·

When choosing between the Dell G15 5520 and the Lenovo Legion Slim 5, consider that the Dell has an Intel i7 processor with a dedicated Nvidia RTX 3060 graphics card, which may provide strong performance for demanding applications and gaming. However, it's heavier and slightly thicker, which could impact portability. On the other hand, the Lenovo Legion Slim 5 features an AMD Ryzen 5 processor and an Nvidia RTX 4060 graphics card. It also offers a higher resolution display with a taller aspect ratio, which can be better for productivity, and its battery is larger. Plus, it's lighter and slimmer, enhancing its portability. Lenovo's choice could offer a more balanced experience between performance, display quality, and ease of carrying around. Both laptops should handle general use and more intensive tasks like 3D applications, machine learning, or engineering software well, but the specific choice may hinge on whether you prioritize portability and battery life (Lenovo) or potentially stronger CPU performance (Dell). 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 G15 5520
  • Very good speakers
Advantages of the Lenovo Legion Slim 5
  • The Lenovo Legion Slim 5 has no clear advantages over the Dell G15 5520.

Key differences

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Screen Quality

7.1
G15 5520
Legion Slim 5
7.2
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
144Hz
251.0 nits
BRIGHTNESS
300.0 nits
The Dell G15 5520 has a better screen than the Lenovo Legion Slim 5 for content creation.
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Key similarities

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General Use

7.9
G15 5520
Legion Slim 5
7.6
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
251.0 nits
DISPLAY BRIGHTNESS
300.0 nits
6.0 Hours
BATTERY LIFE
7.0 Hours
8.5/10
KEYBOARD QUALITY SCORE
8.5/10
6.3/10
PORTABILITY SCORE
6.7/10
The Dell G15 5520 and Lenovo Legion Slim 5 are both good for general use.

Gaming and AI

7.7
G15 5520
Legion Slim 5
7.7
7.3/10
OVERALL GPU SCORE
8.4/10
1920 x 1080
RESOLUTION
1920 x 1200
165Hz
REFRESH RATE
144Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
6.7/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion Slim 5 and Dell G15 5520 are both good for gaming and AI.

Engineering and Design

8.2
G15 5520
Legion Slim 5
8.0
9.1/10
OVERALL CPU SCORE
8.3/10
7.3/10
OVERALL GPU SCORE
8.4/10
16.0 GB
RAM
16.0 GB
The Dell G15 5520 and Lenovo Legion Slim 5 are both very good for engineering and design.

Content Creation

7.9
G15 5520
Legion Slim 5
7.5
9.1/10
OVERALL CPU SCORE
8.3/10
1920 x 1080
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Dell G15 5520 and Lenovo Legion Slim 5 are both good for content creation.

Software Development

7.5
G15 5520
Legion Slim 5
7.4
9.1/10
OVERALL CPU SCORE
8.3/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
1920 x 1200
8.5/10
KEYBOARD QUALITY SCORE
8.5/10
The Dell G15 5520 and Lenovo Legion Slim 5 are both good for software development.

Battery

6.0 Hours
G15 5520
Legion Slim 5
7.0 Hours
The Dell G15 5520 has 6 hours of battery life. The Lenovo Legion Slim 5 has 7 hours of battery life.

Portability

Fair
G15 5520
Legion Slim 5
Fair
15.6in
SIZE
16.0in
5.5 lbs
WEIGHT
5.2 lbs
1.0in
THICKNESS
0.9in
The Lenovo Legion Slim 5 and Dell G15 5520 both have only fair portability.
The most portable laptops are small, thin, and light.

Build Quality

7.4
G15 5520
Legion Slim 5
7.4
The Dell G15 5520 and Lenovo Legion Slim 5 both have good build quality.

Cost

$1,000
G15 5520
Legion Slim 5
$1,000
Product imageProduct image

$400

$600

$800

$1,000

$1,200

$1,400

$1,600

The Dell G15 5520 has a price of $1,000 and the Lenovo Legion Slim 5 costs $1,000.

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How the Dell G15 5520 and the Lenovo Legion Slim 5 compare to other laptops

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Spec Comparison

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Dell G15 5520Lenovo Legion Slim 5
Dell G15 5520Lenovo Legion Slim 5

GENERAL

Price
$1,000
$1,000
Release Date
May 1, 2022May 1, 2023
Overall Dimensions
14.1'' x 10.7'' x 1.06''14.2'' x 10.3'' x 0.99''
Weight
5.55 lbs5.29 lbs
Width
14.06"14.16"
Depth
10.74"10.25"

INTERNAL

Processor
Intel i7-12700HAMD Ryzen 5 7640HS
RAM
16 GB16 GB
DDR Memory Version
55
RAM Slots
22
Storage
1024 GB512 GB

BATTERY

Battery Life
6 Hours7 Hours
Battery Capacity
56 Wh80 Wh

SCREEN

Diagonal Size
15.6"16"
Display Technology
IPSIPS
Resolution
1920 x 10801920 x 1200
Refresh Rate
165Hz144Hz
Display Brightness
251 nits300 nits

RELIABILITY, APPEARANCE & ACOUSTICS

Build Quality Score
7.4/107.4/10
Portability Score
6.4/106.7/10
Gaming Laptop Appearance
YesYes
Premium Business Laptop
NoNo
Fan Noise Score
6.8/106.5/10

HARDWARE FEATURES

Keyboard Quality Score
8.5/108.5/10
Speaker Quality Score
8.8/107/10
Webcam
720p1080p
Fingerprint Reader
NoNo
Backlit Keyboard
YesYes
Number Pad
YesYes

CONNECTIVITY

USB Type-A
32
USB-C ports
12
USB-C Charging
NoYes
Display Outputs
23
Thunderbolt Version
4N/A

Shopping

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Dell G15 5520

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Dig into reviews and images

Rtings

Olivier Martin, Ryan Lim, and John Peroramas | April 2023
"The Dell G15 (2022) is a 15.6-inch budget gaming laptop, and is great for gaming. You can configure the laptop with powerful Intel 12th Gen. CPUs and various NVIDIA dedicated GPUs, all of which deliver a smooth gaming experience at 1080p. There's also a QHD 240Hz display option if you want better visuals, though you'll have to pair it with the top-end NVIDIA GeForce RTX 3070 Ti to get good frame rates. It doesn't get overly hot or loud under load, and there's no noticeable throttling on the CPU or GPU. Unfortunately, the 120Hz panel has a slow response time, causing noticeable ghosting, and it doesn't support variable refresh rate."

Lenovo Legion Slim 5

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Dig into reviews and images

PCMag

Mark Knapp | August 2023
"The Lenovo Legion Slim 5 Gen 8 acknowledges that a gaming laptop doesn’t have to be as thick as possible and can still ensure adequate cooling when the muscles need flexing. To this end, in the Slim 5 Gen 8, it finds a neat balance of refined, trimmed-down design that still lets its internals cruise (even above their max power ratings). Lenovo then added in some high-end build quality with an altogether excellent keyboard that’s useful for both work and play."

Get a great deal on the Dell G15 5520 or the Lenovo Legion Slim 5

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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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

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Laptops evaluated
48,640
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111,495
Recommendations made
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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.

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