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What we think
The PerfectRec laptop team Learn more
Updated January 12, 2024·
If performance for engineering or gaming is a priority, the Dell G15, with its higher-powered Intel processor and RTX graphics, will better meet your demands, though at a higher price and with less portability due to its larger size and weight. On the other hand, the Lenovo Flex 5 is more affordable, offers adequate performance for general use and multitasking with its Ryzen processor, and brings versatility with its 2-in-1 convertible design, making it suitable as both a laptop and a tablet, as well as having a lighter and more portable form. The tradeoff with the Lenovo is in the gaming and intensive tasks capabilities, which are more limited compared to the Dell. Choose the Dell if you need top performance, and the Lenovo if cost, versatility, and portability are more important. 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
- Good overall display quality
- Very good speakers
- Very good keyboard
Advantages of the Lenovo Flex 5 14
- Very good portability
- Very good battery life
Key differences
Gaming and AI
7.7
6.2
7.3/10
OVERALL GPU SCORE
3.6/10
1920 x 1080
RESOLUTION
1920 x 1200
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 14 is only fair.
The Dell G15 5520 offers better gaming and 3D performance mainly due to its superior Nvidia RTX 3060 graphics card and a higher screen refresh rate of 165hz, compared to the Lenovo Flex 5 14 which uses an integrated AMD Ryzen 7 7730U Vega 8 GPU and has a lower refresh rate of 60hz. While both laptops have capable processors and quality IPS displays, the Dell's GPU and refresh rate are far more critical for a smooth gaming experience.
Engineering and Design
8.2
7.0
9.1/10
OVERALL CPU SCORE
6.9/10
7.3/10
OVERALL GPU SCORE
3.6/10
16.0 GB
RAM
16.0 GB
The Dell G15 5520 is very good for engineering and design, while the Lenovo Flex 5 14 is good.
The Dell G15 5520 is better suited for engineering and design due to its powerful Intel i7 CPU and Nvidia RTX 3060 GPU, providing higher performance for demanding tasks, while the Lenovo Flex 5 14, with its AMD Ryzen 7 CPU and Vega 8 graphics, offers good performance but less suited for intensive design work. Additionally, the Dell has a higher screen refresh rate and density, enhancing visual detail and smoothness, though the Lenovo offers a higher resolution and portability due to its lighter weight and 2-in-1 convertible design, which may be handy for presentations and mobility.
Screen Quality
7.1
6.4
15.6in
SIZE
14.0in
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
60Hz
251.0 nits
BRIGHTNESS
277.0 nits
The Dell G15 5520 has a better screen than the Lenovo Flex 5 14 for general use, gaming and AI, engineering and design, and content creation.
For general use, the Dell G15 5520's screen stands out due to a combination of an appropriate resolution and brightness, making it suitable for everyday tasks and viewing comfort. On the other hand, in engineering and design, where precise color representation is critical, the Dell's ability to cover a wider range of color gamuts ensures that the visuals are accurate and vibrant. However, for gaming and 3D applications, where motion clarity and fluidity are key, the lower refresh rate of the Dell's screen may lead to less smooth visuals compared to displays designed specifically for these purposes.
Battery
6.0 Hours
11.5 Hours
The Dell G15 5520 has 6 hours of battery life. The Lenovo Flex 5 14 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
Very Good
15.6in
SIZE
14.0in
5.5 lbs
WEIGHT
3.4 lbs
1.0in
THICKNESS
0.7in
The Lenovo Flex 5 14 has very good portability, while the Dell G15 5520 has only fair portability.
The most portable laptops are small, thin, and light.
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Key similarities
General Use
7.9
7.7
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
251.0 nits
DISPLAY BRIGHTNESS
277.0 nits
6.0 Hours
BATTERY LIFE
11.5 Hours
8.5/10
KEYBOARD QUALITY SCORE
7.0/10
6.3/10
PORTABILITY SCORE
8.3/10
The Dell G15 5520 and Lenovo Flex 5 14 are both good for general use.
For general use, the Dell G15 5520 provides a solid balance of performance with a capable CPU and adequate RAM, while its larger screen and higher refresh rate suit everyday multitasking, though it is less portable and has shorter battery life. In contrast, the Lenovo Flex 5 14 excels in portability and longer battery life, also offering a quality CPU and RAM with the added benefit of a touchscreen and 2-in-1 convertibility, making it versatile for a range of uses despite a smaller screen and standard refresh rate.
Content Creation
7.9
7.6
9.1/10
OVERALL CPU SCORE
6.9/10
1920 x 1080
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Dell G15 5520 and Lenovo Flex 5 14 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
7.4
9.1/10
OVERALL CPU SCORE
6.9/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
1920 x 1200
8.5/10
KEYBOARD QUALITY SCORE
7.0/10
The Dell G15 5520 and Lenovo Flex 5 14 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
7.0
The Dell G15 5520 and Lenovo Flex 5 14 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
$950
$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 14 costs $950.
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How the Dell G15 5520 and the Lenovo Flex 5 14 compare to other laptops
Spec Comparison
 |  | |
| Dell G15 5520 | Lenovo Flex 5 14 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $950 | ||
Release Date | |||
Release Date | May 1, 2022 | December 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.1'' x 10.7'' x 1.06'' | 12.3'' x 8.9'' x 0.7'' | |
Weight | |||
Weight | 5.55 lbs | 3.42 lbs | |
Width | |||
Width | 14.06" | 12.32" | |
Depth | |||
Depth | 10.74" | 8.85" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-12700H | AMD Ryzen 7 7730U | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 0 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6 Hours | 11.5 Hours | |
Battery Capacity | |||
Battery Capacity | 56 Wh | 52.5 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 14" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 1920 x 1200 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 251 nits | 277 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.4/10 | 7/10 | |
Portability Score | |||
Portability Score | 6.4/10 | 8.3/10 | |
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 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 7/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8.8/10 | 6/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | Yes | No | |
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 Flex 5 14
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NotebookCheck
Allen Ngo | May 2021
"The highlight of the latest IdeaPad Flex 5 14 is clearly its AMD CPU. The octa-core Ryzen 7 5700U is insanely fast even when compared to the best Tiger Lake Ultrabooks in the market or even Core H CPUs in many gaming laptops. It's a lot of raw processing power for what is supposed to be a budget 14-inch convertible. If your daily workloads can benefit from extra multi-thread CPU performance, then look no further than the inexpensive AMD-powered Lenovo IdeaPad Flex 5 14. For regular on-the-road browsing or video streaming, however, a slimmer and lighter 10th gen Core Yoga, Spectre, or XPS would be a more balanced option."
Get a great deal on the Dell G15 5520 or the Lenovo Flex 5 14
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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