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What we think
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Updated January 10, 2024·
If portability and battery life are important to you, and you mainly use your laptop for everyday tasks like browsing the internet, working on documents, and streaming video, the Dell Inspiron 14 7420 is less expensive, lighter, and offers longer battery life. However, if you need higher performance for activities like 3D rendering, machine learning, or gaming, the Razer Blade 15, while more expensive and heavier, comes with a more powerful processor, superior graphics card, and a higher resolution display that refreshes faster, which makes it better suited for these intensive tasks but with shorter battery life. 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 Inspiron 14 7420
- Very good portability
- Good battery life
Advantages of the Razer Blade 15
- Very good for engineering and design
- Very good for gaming and AI
- Very good for content creation
- Very good overall display quality
- Very good overall build quality
- Very good speakers
- Excellent keyboard
Key differences
Gaming and AI
6.2
8.0
3.7/10
OVERALL GPU SCORE
8.0/10
1920 x 1200
RESOLUTION
2560 x 1440
60Hz
REFRESH RATE
240Hz
No
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.5/10
FAN NOISE SCORE
7.0/10
The Razer Blade 15 is very good for gaming and AI, while the Dell Inspiron 14 7420 is only fair.
The Razer Blade 15 outpaces the Dell Inspiron 14 7420 in gaming and 3D capabilities largely because it is equipped with a more robust Nvidia RTX 3070 Ti graphics processing unit and a higher screen refresh rate which is crucial for smooth visuals in fast-paced games.
Engineering and Design
6.9
8.5
6.9/10
OVERALL CPU SCORE
9.0/10
3.7/10
OVERALL GPU SCORE
8.0/10
16.0 GB
RAM
16.0 GB
The Razer Blade 15 is very good for engineering and design, while the Dell Inspiron 14 7420 is only fair.
The Razer Blade 15 outperforms the Dell Inspiron 14 7420 in engineering and design primarily because it has a more powerful CPU and GPU, essential for intensive tasks, and a higher-resolution, faster-refreshing screen that benefits design work. While the Dell offers solid performance and better portability, its less robust CPU, GPU, and lower screen resolution and refresh rate make it more suited to lighter engineering tasks and general use.
Content Creation
7.3
8.0
6.9/10
OVERALL CPU SCORE
9.0/10
1920 x 1200
RESOLUTION
2560 x 1440
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Razer Blade 15 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
6.2
8.2
14.0in
SIZE
15.6in
1920 x 1200
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
240Hz
260.0 nits
BRIGHTNESS
271.0 nits
The Razer Blade 15 has a better screen than the Dell Inspiron 14 7420 for general use, gaming and AI, engineering and design, content creation, and software development.
For general use, the Dell Inspiron 14 7420's screen offers adequate resolution and brightness, but may not stand out in terms of vibrant colors, contrast, or viewing angles, which the Razer Blade 15 excels in due to its superior panel type and higher brightness, making for a more vivid and comfortable viewing experience. When it comes to engineering and design, the Razer Blade 15's higher color accuracy, with wider color gamuts like DCI-P3 and Adobe RGB, provides professionals with more precise color representation essential for detailed work, something the Dell Inspiron falls short on due to its more limited color range. However, for Gaming and 3D applications where fast-paced visuals are crucial, both laptops disappoint as neither offers a high refresh rate display, which is key for smooth motion and gameplay, even though their resolutions and panel technologies are sufficient for moderate gaming and 3D tasks.
Battery
7.5 Hours
5.0 Hours
The Dell Inspiron 14 7420 has 7.5 hours of battery life. The Razer Blade 15 has 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
Very Good
Good
14.0in
SIZE
15.6in
3.6 lbs
WEIGHT
4.4 lbs
0.6in
THICKNESS
0.6in
The Dell Inspiron 14 7420 has very good portability, while the Razer Blade 15 has good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.4
8.5
The Razer Blade 15 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
$801
$2,500
$0
$1,000
$2,000
$3,000
$4,000
The Dell Inspiron 14 7420 has a price of $801 and the Razer Blade 15 costs $2,500.
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Key similarities
General Use
7.5
7.9
1920 x 1200
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
260.0 nits
DISPLAY BRIGHTNESS
271.0 nits
7.5 Hours
BATTERY LIFE
5.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
9.0/10
8.3/10
PORTABILITY SCORE
7.7/10
The Razer Blade 15 and Dell Inspiron 14 7420 are both good for general use.
The Dell Inspiron 14 7420 is well-suited for general use with its solid battery life, lightweight design, and high portability score, making it easy to carry and use for everyday tasks. In contrast, the Razer Blade 15 offers exceptionally high screen quality for immersive viewing, a robust CPU and GPU for demanding applications, and premium keyboard quality, but it is heavier and has a shorter battery life, positioning it as a powerful but less portable option.
Software Development
7.3
7.7
6.9/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
16.0 GB
1920 x 1200
RESOLUTION
2560 x 1440
8.0/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 15 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 Dell Inspiron 14 7420 and the Razer Blade 15 compare to other laptops
Spec Comparison
 |  | |
| Dell Inspiron 14 7420 | Razer Blade 15 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$801 | $2,500 | ||
Release Date | |||
Release Date | May 1, 2022 | January 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 12.4'' x 9'' x 0.66'' | 14'' x 9.3'' x 0.67'' | |
Weight | |||
Weight | 3.61 lbs | 4.4 lbs | |
Width | |||
Width | 12.36" | 13.98" | |
Depth | |||
Depth | 8.96" | 9.25" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-1255U | Intel i7-12800H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7.5 Hours | 5 Hours | |
Battery Capacity | |||
Battery Capacity | 54 Wh | 80 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14" | 15.6" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1200 | 2560 x 1440 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 260 nits | 271 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.4/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 8.3/10 | 7.7/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.5/10 | 7/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 6.8/10 | 8/10 | |
Webcam | |||
Webcam | 1080p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 1 | 3 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | N/A | 4 | |
Shopping
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."
Razer Blade 15
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Dig into reviews and images
NotebookCheck
Allen Ngo | March 2022
"The 2022 Blade 15 offers roughly 15 to 25 percent faster graphics performance and 20 percent faster CPU performance over last year's Core i7-11800H and RTX 3080 model. Thankfully, the system doesn't need to run noticeably louder or warmer to achieve faster results, but both power consumption and battery life take a hit. The higher consumption in particular appears to be a trend amongst many 12th gen Core laptops including the Schenker Uniwill Technology GM7AG8P or MSI Vector GP66 when compared to their previous generation counterparts. We're also glad to not see below-average CPU performance which was the case for the 10th gen Core i7-10875H model."
Get a great deal on the Dell Inspiron 14 7420 or the Razer Blade 15
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 Razer
Razer is an American-Singaporean technology company. Razer is best known for their Blade series laptops, well known for their strong performance and sleek design. Although Razer charges a premium price tag for their laptops, buyers can expect a stealthy laptop with clean fit and finish and strong performance. All of their models offer great portability and build quality compared to other gaming laptops.
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