The Dell G15 5520 offers robust performance suitable for intensive gaming, 3D rendering, and machine learning, with its higher-end GPU and processor. But if portability and longer battery life are crucial for you, and you engage more in general use and light engineering tasks, the Lenovo Flex 5 16, with its touchscreen and lighter weight, may fit better while also being lighter on your wallet. Keep in mind, though, the Flex's integrated graphics don't support heavy gaming or advanced graphic applications like the Dell's discrete GPU does. 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
Very good keyboard
Advantages of the Lenovo Flex 5 16
Good portability
Very good battery life
Key differences
Gaming and AI
7.7/10
6.2/10
7.3/10
OVERALL GPU SCORE
3.7/10
1920 x 1080
RESOLUTION
2560 x 1600
165Hz
REFRESH RATE
60Hz
Yes
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
6.7/10
FAN NOISE SCORE
7.5/10
The Dell G15 5520 is good for gaming and AI, while the Lenovo Flex 5 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
8.2/10
7.2/10
9.1/10
OVERALL CPU SCORE
6.9/10
7.3/10
OVERALL GPU SCORE
3.7/10
16.0 GB
RAM
16.0 GB
The Dell G15 5520 is very good for engineering and design, while the Lenovo Flex 5 16 is good.
The Dell G15 5520 is favored for engineering and design primarily due to its superior dedicated GPU, the Nvidia RTX 3060, and a higher performing CPU, which are crucial for intensive tasks such as 3D modeling and simulations. In contrast, the Lenovo Flex 5 16, while still suitable for engineering, offers a higher resolution touchscreen with stylus support which may be beneficial for design work, but it has an integrated GPU and a less powerful CPU, reflecting a tradeoff between graphical performance and screen features.
Screen Quality
7.1/10
7.3/10
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
60Hz
251.0 nits
BRIGHTNESS
400.0 nits
The Dell G15 5520 has a better screen than the Lenovo Flex 5 16 for gaming and AI, and content creation, while the Lenovo Flex 5 16 has a better screen for general use, and engineering and design.
For general use, both the Dell G15 5520 and Lenovo Flex 5 16 provide adequate resolution and brightness, making them pleasant for everyday tasks like browsing and video streaming. With displays that cover a broad range of colors in DCI-P3 and Adobe RGB, these laptops are suitable for engineering and design work where precise color representation is important. However, their screens aren't optimal for gaming and 3D applications due to lower refresh rates, which can lead to less smooth visuals and slower response times in fast-paced scenarios.
Battery
6.0 Hours
11.5 Hours
The Dell G15 5520 has 6 hours of battery life. The Lenovo Flex 5 16 has 11.5 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
0.7in
The Lenovo Flex 5 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
$740
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
The Dell G15 5520 has a price of $1,000 and the Lenovo Flex 5 16 costs $740.
The Dell G15 5520 and Lenovo Flex 5 16 are both good for general use.
The Dell G15 5520 offers strong performance with its high-end CPU and dedicated GPU, making it suitable for demanding applications, but it is heavier and has shorter battery life, which can be a concern for portability. Conversely, the Lenovo Flex 5 16 boasts a higher resolution touchscreen display and longer battery life for better portability and versatile use as a laptop or tablet, though it has a less powerful CPU and integrated graphics, which may limit its use in performance-heavy tasks.
Content Creation
7.9/10
7.6/10
9.1/10
OVERALL CPU SCORE
6.9/10
1920 x 1080
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Dell G15 5520 and Lenovo Flex 5 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
7.5/10
7.5/10
9.1/10
OVERALL CPU SCORE
6.9/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1600
8.5/10
KEYBOARD QUALITY SCORE
7.0/10
The Dell G15 5520 and Lenovo Flex 5 16 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
7.4/10
7.0/10
The Dell G15 5520 and Lenovo Flex 5 16 both have good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Give feedback
We’re constantly working to improve.
How the Dell G15 5520 and the Lenovo Flex 5 16 compare to other laptops
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."
"The Lenovo IdeaPad Flex 5 is a solidly equipped, 2-in-1 in the lower price segment. Performance is definitely sufficient for everyday tasks and in tests the battery proved itself to be very economical. That aside, there is a lot of standard fare on show and a search for real highlights ends in vain. The low color coverage and reflective display can be avoided by going for an optional 2.5K display but this also presumably results in poorer battery life. The cooling uses only one fan and leads to a raised temperature on one side of the device under load. Additionally, there is very loud fan noise, also under load or when gaming. On top of that, we also occasionally noticed electronic noises."
Get a great deal on the Dell G15 5520 or the Lenovo Flex 5 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.
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