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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 for content creation
- 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
Screen Quality
7.1
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.
For general use, both the Dell G15 5520 and Lenovo Legion Slim 5 offer screens that have ample resolution and brightness, providing clear and vibrant visuals suitable for everyday tasks like browsing and video streaming. In engineering and design work, they both support a sufficiently wide color range to ensure accurate color rendering, crucial for tasks like photo editing and graphic design. However, for gaming and 3D applications, their screens fall short as they do not have the high refresh rates preferred for smooth motion and fast-paced visuals.
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Key similarities
General Use
7.9
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.
The Dell G15 5520 is suitable for general use due to its powerful Intel CPU, ample RAM, and quality IPS screen that ensure smooth operation, although it is heavier and has less battery life compared to the Lenovo Legion Slim 5, which also boasts strong general use performance with a competent AMD CPU, high RAM, and a bright display with higher screen resolution, all in a thinner and lighter form factor conducive to portability and longer unplugged usage. Both laptops have sufficient storage, good keyboard quality, and manage heat and noise effectively, but the Lenovo has a slight edge in speaker quality and screen colors, adding to a more immersive experience.
Gaming and AI
7.7
7.8
8.0/10
OVERALL GPU SCORE
9.4/10
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.
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
8.2
8.0
9.2/10
OVERALL CPU SCORE
8.3/10
8.0/10
OVERALL GPU SCORE
9.4/10
16.0 GB
RAM
16.0 GB
The Dell G15 5520 and Lenovo Legion Slim 5 are both very good for engineering and design.
The Dell G15 5520, with its Intel i7 processor and RTX 3060 GPU, provides strong performance suited for engineering and design while offering a decent screen quality at a standard Full HD resolution. In contrast, the Lenovo Legion Slim 5, although it also has a capable processor and a more powerful RTX 4060 GPU, ensures sharper visuals with a higher resolution screen and better color coverage, making it slightly more optimal for design work that depends on visual accuracy.
Content Creation
8.0
7.6
9.2/10
OVERALL CPU SCORE
8.3/10
1920 x 1080
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
Although they have very similar scores, PerfectRec considers Dell G15 5520 to be very good for content creation, while the Lenovo Legion Slim 5 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
7.5
7.4
9.2/10
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.
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.
Battery
6.0 Hours
7.0 Hours
The Dell G15 5520 has 6 hours of battery life. The Lenovo Legion Slim 5 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
Fair
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
7.4
The Dell G15 5520 and Lenovo Legion Slim 5 both have good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$1,000
$1,000
$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
Spec Comparison
 |  | |
| Dell G15 5520 | Lenovo Legion Slim 5 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $1,000 | ||
Release Date | |||
Release Date | May 1, 2022 | May 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14.1'' x 10.7'' x 1.06'' | 14.2'' x 10.3'' x 0.99'' | |
Weight | |||
Weight | 5.55 lbs | 5.29 lbs | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-12700H | AMD Ryzen 5 7640HS | |
Graphics | |||
Graphics | RTX 3060 (130 W) | RTX 4060 (125 W) | |
Mux Switch / Advanced Optimus | |||
Mux Switch / Advanced Optimus | No | Yes | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6 Hours | 7 Hours | |
Battery Capacity | |||
Battery Capacity | 56 Wh | 80 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 1920 x 1200 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 144Hz | |
Display Brightness | |||
Display Brightness | 251 nits | 300 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.4/10 | 7.4/10 | |
Portability Score | |||
Portability Score | 6.4/10 | 6.7/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | Yes | |
Fan Noise Score | |||
Fan Noise Score | 6.8/10 | 6.5/10 | |
Keyboard Lighting Color | |||
Keyboard Lighting Color | Blue | RGB | |
Warranty Period | |||
Warranty Period | 1 year | 1 year | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8.8/10 | 7/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | Yes | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 3 | 2 | |
USB-C ports | |||
USB-C ports | 1 | 2 | |
USB-C Charging | |||
USB-C Charging | No | Yes | |
Display Outputs | |||
Display Outputs | 2 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | N/A | |
Shopping
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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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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