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The PerfectRec laptop team Learn more
Updated January 10, 2024·
Since you mentioned the Dell G15 5520 is often significantly more expensive than the Lenovo Slim 7 16, consider your priorities: if you need high performance for gaming or intensive tasks and don't mind spending more, the Dell G15 might be suitable. However, if you prefer something that is likely lighter, possibly with longer battery life, and is more cost-effective for everyday use or less demanding applications, the Lenovo Slim 7 could be the better choice. Keep in mind the tradeoff between cost and power when making your decision. 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 engineering and design
- Good for gaming and AI
- Very good speakers
Advantages of the Lenovo Slim 7 16
- Very good overall display quality
- Good portability
Key differences
Gaming and AI
7.7
6.6
7.3/10
OVERALL GPU SCORE
4.3/10
1920 x 1080
RESOLUTION
2560 x 1600
165Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
No
6.7/10
FAN NOISE SCORE
7.0/10
The Dell G15 5520 is good for gaming and AI, while the Lenovo Slim 7 16 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
8.2
7.5
9.1/10
OVERALL CPU SCORE
7.2/10
7.3/10
OVERALL GPU SCORE
4.3/10
16.0 GB
RAM
16.0 GB
The Dell G15 5520 is very good for engineering and design, while the Lenovo Slim 7 16 is good.
The Dell G15 5520, with its robust Nvidia RTX 3060 GPU, excels in engineering and design tasks that require significant graphical processing power, while the Lenovo Slim 7 16, though it has a decent Nvidia RTX 3050 GPU, offers a balance between performance and portability for less demanding design scenarios.
Screen Quality
7.1
8.3
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
165Hz
251.0 nits
BRIGHTNESS
500.0 nits
The Dell G15 5520 has a better screen than the Lenovo Slim 7 16 for content creation, while the Lenovo Slim 7 16 has a better screen for general use, gaming and AI, and engineering and design.
For general use, both the Dell G15 and Lenovo Slim 7 offer screens that provide clarity and vibrancy due to their resolution and brightness, with the Lenovo having a slight edge due to superior color reproduction. When it comes to engineering and design work, the Lenovo Slim 7 stands out with a wider color gamut coverage, ensuring more accurate color representation for professional tasks. However, for gaming and 3D applications, both laptops’ screens fall short because they lack the high refresh rates required for smooth motion and fast-paced visuals that gamers and 3D artists typically need.
Battery
6.0 Hours
9.5 Hours
The Dell G15 5520 has 6 hours of battery life. The Lenovo Slim 7 16 has 9.5 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
Fair
Good
15.6in
SIZE
16.0in
5.5 lbs
WEIGHT
4.6 lbs
1.0in
THICKNESS
0.6in
The Lenovo Slim 7 16 has good portability, while the Dell G15 5520 has only fair portability.
The most portable laptops are small, thin, and light.
Cost
$1,000
$1,440
$500
$1,000
$1,500
$2,000
$2,500
The Dell G15 5520 has a price of $1,000 and the Lenovo Slim 7 16 costs $1,440.
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Key similarities
General Use
7.9
7.7
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
251.0 nits
DISPLAY BRIGHTNESS
500.0 nits
6.0 Hours
BATTERY LIFE
9.5 Hours
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
6.3/10
PORTABILITY SCORE
7.5/10
The Dell G15 5520 and Lenovo Slim 7 16 are both good for general use.
The Dell G15 5520 has powerful CPU and GPU for smooth performance in varied tasks, ample storage and RAM for multitasking, a good quality screen, although it's heavier and has shorter battery life, making it less portable. The Lenovo Slim 7 16 offers a sharp, high-quality touchscreen with better battery life and lighter design for ease of carrying, but it comes with less storage and has a less powerful GPU, making it slightly less suited for graphically intensive tasks.
Content Creation
7.9
7.6
9.1/10
OVERALL CPU SCORE
7.2/10
1920 x 1080
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Dell G15 5520 and Lenovo Slim 7 16 are both good for content creation.
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
7.6
9.1/10
OVERALL CPU SCORE
7.2/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1600
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
The Lenovo Slim 7 16 and Dell G15 5520 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.
Build Quality
7.4
7.8
The Lenovo Slim 7 16 and Dell G15 5520 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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How the Dell G15 5520 and the Lenovo Slim 7 16 compare to other laptops
Spec Comparison
 |  | |
| Dell G15 5520 | Lenovo Slim 7 16 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $1,440 | ||
Release Date | |||
Release Date | May 1, 2022 | June 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.1'' x 10.7'' x 1.06'' | 14'' x 9.7'' x 0.69'' | |
Weight | |||
Weight | 5.55 lbs | 4.6 lbs | |
Width | |||
Width | 14.06" | 14.01" | |
Depth | |||
Depth | 10.74" | 9.68" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-12700H | AMD Ryzen 7 6800HS | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 0 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6 Hours | 9.5 Hours | |
Battery Capacity | |||
Battery Capacity | 56 Wh | 75 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 251 nits | 500 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.4/10 | 7.8/10 | |
Portability Score | |||
Portability Score | 6.4/10 | 7.6/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 6.8/10 | 7/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 8/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8.8/10 | 7.5/10 | |
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 | 1 | |
USB-C Charging | |||
USB-C Charging | No | Yes | |
Display Outputs | |||
Display Outputs | 2 | 2 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | N/A | |
Shopping
Dell G15 5520
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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 Slim 7 16
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Dig into reviews and images
PCMag
Eric Grevstad | March 2022
"At $1,011, the Lenovo IdeaPad Slim 7 Pro is a real bargain among full-sized laptops, with a handsome 16-inch, 16:10 aspect ratio touch screen, a speedy CPU, a comfortable keyboard, ample memory, and a roomy solid-state drive. It's not a blazing gaming rig or mobile workstation, but it doesn't pretend to be. Its biggest negative is that it may be hard to find—during our review, it sold out and was marked "Temporarily Unavailable" on Lenovo's site."
Get a great deal on the Dell G15 5520 or the Lenovo 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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