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Updated January 10, 2024·
The ASUS ROG Zephyrus G15 is more expensive but offers superior performance for intensive tasks like 3D rendering, machine learning, and engineering, with a high-end processor and dedicated graphics card. It has a larger and faster refresh screen, but it's heavier and less portable. On the other hand, the Dell Inspiron 14 7420 is less expensive and more portable with a lighter build and touchscreen display, making it suitable for general use. However, its performance for demanding applications is lower due to its integrated graphics. Both have comparable battery life, yet the ASUS's larger battery offers longer usage on a single charge. 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 ASUS ROG Zephyrus G15
- Very good for engineering and design
- Good for gaming and AI
- Very good for content creation
- Good overall display quality
- Very good overall build quality
- Best in class speakers
Advantages of the Dell Inspiron 14 7420
- Very good portability
- Very good keyboard
Key differences
Gaming and AI
7.5
6.2
7.4/10
OVERALL GPU SCORE
3.7/10
2560 x 1440
RESOLUTION
1920 x 1200
165Hz
REFRESH RATE
60Hz
Yes
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
6.5/10
FAN NOISE SCORE
7.5/10
The ASUS ROG Zephyrus G15 is good for gaming and AI, while the Dell Inspiron 14 7420 is only fair.
The ASUS ROG Zephyrus G15 surpasses the Dell Inspiron 14 7420 in gaming and 3D performance mainly because it has a much more powerful Nvidia RTX 3070 GPU and a higher screen refresh rate of 165Hz, which provides smoother visuals and better responsiveness.
Engineering and Design
8.0
6.9
7.5/10
OVERALL CPU SCORE
6.9/10
7.4/10
OVERALL GPU SCORE
3.7/10
16.0 GB
RAM
16.0 GB
The ASUS ROG Zephyrus G15 is very good for engineering and design, while the Dell Inspiron 14 7420 is only fair.
PerfectRec’s Engineering and Design Score takes into account the many different features of the laptop that make it more or less suitable for graphic design and 3D rendering work.
Content Creation
8.0
7.3
7.5/10
OVERALL CPU SCORE
6.9/10
2560 x 1440
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The ASUS ROG Zephyrus G15 is very good for content creation, while the Dell Inspiron 14 7420 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.
Screen Quality
7.9
6.2
15.6in
SIZE
14.0in
2560 x 1440
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
60Hz
309.0 nits
BRIGHTNESS
260.0 nits
The ASUS ROG Zephyrus G15 has a better screen than the Dell Inspiron 14 7420 for general use, gaming and AI, engineering and design, and content creation.
The ASUS ROG Zephyrus G15's superior screen quality for general use and engineering is due to its high resolution and bright display, with excellent color coverage that benefits professional design work. However, its lower refresh rate compared to gaming-optimized screens makes it less ideal for gaming and 3D applications, where fluid motion is key. Meanwhile, the Dell Inspiron 14 7420's fair screen quality in all aspects hinges on its adequate resolution and brightness for daily tasks, and fair color gamut, but its overall capabilities don't match the more specialized displays for engineering or the higher refresh requirements for gaming.
Battery
9.5 Hours
7.5 Hours
The ASUS ROG Zephyrus G15 has 9.5 hours of battery life. The Dell Inspiron 14 7420 has 7.5 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
Good
Very Good
15.6in
SIZE
14.0in
4.1 lbs
WEIGHT
3.6 lbs
0.7in
THICKNESS
0.6in
The Dell Inspiron 14 7420 has very good portability, while the ASUS ROG Zephyrus G15 has good portability.
The most portable laptops are small, thin, and light.
Build Quality
8.5
7.4
The ASUS ROG Zephyrus G15 has very good build quality, while the Dell Inspiron 14 7420 has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$2,000
$801
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The ASUS ROG Zephyrus G15 has a price of $2,000 and the Dell Inspiron 14 7420 costs $801.
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Key similarities
General Use
7.9
7.5
2560 x 1440
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
309.0 nits
DISPLAY BRIGHTNESS
260.0 nits
9.5 Hours
BATTERY LIFE
7.5 Hours
6.5/10
KEYBOARD QUALITY SCORE
8.0/10
7.5/10
PORTABILITY SCORE
8.3/10
The ASUS ROG Zephyrus G15 and Dell Inspiron 14 7420 are both good for general use.
The ASUS ROG Zephyrus G15, with its powerful CPU, high RAM, superior screen quality, and extended battery life, stands out for demanding tasks and media consumption, albeit being a bit heavier and less portable compared to its peers. In contrast, the Dell Inspiron 14 7420 offers moderate performance with its capable CPU and the same amount of RAM, along with a high-quality, touch-enabled screen and greater portability due to its lighter weight and smaller size, but with shorter battery life.
Software Development
7.4
7.3
7.5/10
OVERALL CPU SCORE
6.9/10
16.0 GB
RAM
16.0 GB
2560 x 1440
RESOLUTION
1920 x 1200
6.5/10
KEYBOARD QUALITY SCORE
8.0/10
The ASUS ROG Zephyrus G15 and Dell Inspiron 14 7420 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.
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How the ASUS ROG Zephyrus G15 and the Dell Inspiron 14 7420 compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Zephyrus G15 | Dell Inspiron 14 7420 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,000 | $801 | ||
Release Date | |||
Release Date | May 1, 2021 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.6'' x 0.78'' | 12.4'' x 9'' x 0.66'' | |
Weight | |||
Weight | 4.19 lbs | 3.61 lbs | |
Width | |||
Width | 13.98" | 12.36" | |
Depth | |||
Depth | 9.57" | 8.96" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 5900HS | Intel i7-1255U | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 4 | |
RAM Slots | |||
RAM Slots | 1 | 2 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 9.5 Hours | 7.5 Hours | |
Battery Capacity | |||
Battery Capacity | 90 Wh | 54 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 14" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1440 | 1920 x 1200 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 309 nits | 260 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 7.4/10 | |
Portability Score | |||
Portability Score | 7.5/10 | 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 | 6.5/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.5/10 | 8/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.5/10 | 6.8/10 | |
Webcam | |||
Webcam | No Webcam | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 1 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
ASUS ROG Zephyrus G15
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Dig into reviews and images
NotebookCheck
Florian Glaser | February 2021
"As long as you're aware of the fact that the GeForce RTX 3080 laptop version can only unfold its potential to a limited extent due to Asus's low TDP setting and that it can be slower than a fast RTX 3070 laptop, the ROG Zephyrus G15 GA503Q cuts a fine figure. One of the biggest highlights turns out to be the WQHD panel, since it attracts customers with 165 Hz, relatively fast response times, FreeSync, and good color-space coverage. Other selling points are the surprisingly rich sound, the long battery life, and the sleek design. In terms of looks, the white edition stands out nicely from the competition."
Dell Inspiron 14 7420
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Dig into reviews and images
NotebookCheck
Allen Ngo | June 2022
"Notable qualities of the Inspiron 7420 2-in-1 include the 16:10 aspect ratio, strong hinges, 12th gen Intel CPU with optional GeForce MX graphics, and easy serviceability. Such features would typically cost hundreds of dollars more on higher-end alternatives from competing manufacturers. The value proposition is therefore relatively high for users looking to maximize bang for the buck."
Get a great deal on the ASUS ROG Zephyrus G15 or the Dell Inspiron 14 7420
About ASUS
ASUS, a Taiwanese electronics brand, is one of the largest personal computer vendor by market share. The majority of their laptops are targeted towards personal use or gaming. Their most popular product lines include the budget-friendly VivoBook, more premium ZenBook, and their TUF and ROG gaming laptops, the latter of which has a reputation for excellent gaming performance.
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.
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