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What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
If your priority is high performance for tasks like 3D rendering, machine learning, or gaming, the Razer Blade 15 excels with its powerful graphics. However, it's heavier and has a shorter battery life, making it less portable. The Dell Inspiron 14 5420 is more budget-friendly, offers decent performance for general use and some engineering work, and has a longer battery life which improves its portability; but it lacks the high-level graphics performance found in the Razer Blade 15. Both have good quality screens and keyboards, but the Razer Blade 15's screen has a higher refresh rate that is beneficial for fast motion like gaming. 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 5420
- Very good portability
- Very 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
6.4
8.0
4.3/10
OVERALL GPU SCORE
8.0/10
2240 x 1400
RESOLUTION
2560 x 1440
60Hz
REFRESH RATE
240Hz
No
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
6.5/10
FAN NOISE SCORE
7.0/10
The Razer Blade 15 is very good for gaming and AI, while the Dell Inspiron 14 5420 is only fair.
The Razer Blade 15 delivers superior gaming and 3D performance with a high-end Nvidia RTX 3070 Ti graphics card and an impressive 240 Hz screen refresh rate, a significant advantage for fast-paced games. In contrast, the Dell Inspiron 14 5420 is equipped with a less powerful Nvidia MX570 GPU and a standard 60 Hz refresh rate, making it fair for gaming and 3D tasks but not as optimized as the Razer for these demanding applications.
Engineering and Design
7.1
8.5
6.9/10
OVERALL CPU SCORE
9.0/10
4.3/10
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 5420 is good.
The Dell Inspiron 14 5420, with its less powerful Nvidia MX570 GPU, is better suited for lighter engineering and design tasks, while the Razer Blade 15's higher-end Nvidia RTX 3070 Ti GPU makes it a superior choice for more intensive engineering and graphic design work.
Content Creation
7.5
8.0
6.9/10
OVERALL CPU SCORE
9.0/10
2240 x 1400
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 5420 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
6.5
8.2
14.0in
SIZE
15.6in
2240 x 1400
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
240Hz
279.0 nits
BRIGHTNESS
271.0 nits
The Razer Blade 15 has a better screen than the Dell Inspiron 14 5420 for general use, gaming and AI, engineering and design, content creation, and software development.
The Dell Inspiron 14 5420's display offers adequate resolution and brightness for everyday tasks but lacks the wider color gamut needed for precision in engineering and design, and its refresh rate isn't high enough for the fast-paced visuals required in gaming and 3D applications. The Razer Blade 15, on the other hand, boasts a vibrant display with a high resolution and ample brightness for all-around use, and it includes a wide color gamut necessary for professional engineering and design work. However, despite its good general capabilities, its screen falls short for gaming and 3D work where a higher refresh rate is crucial to keep up with rapid on-screen action.
Battery
10.0 Hours
5.0 Hours
The Dell Inspiron 14 5420 has 10 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
3.4 lbs
WEIGHT
4.4 lbs
0.7in
THICKNESS
0.6in
The Dell Inspiron 14 5420 has very good portability, while the Razer Blade 15 has good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.0
8.5
The Razer Blade 15 has very good build quality, while the Dell Inspiron 14 5420 has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$971
$2,500
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The Dell Inspiron 14 5420 has a price of $971 and the Razer Blade 15 costs $2,500.
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Key similarities
General Use
7.6
7.9
2240 x 1400
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
279.0 nits
DISPLAY BRIGHTNESS
271.0 nits
10.0 Hours
BATTERY LIFE
5.0 Hours
7.5/10
KEYBOARD QUALITY SCORE
9.0/10
8.2/10
PORTABILITY SCORE
7.7/10
The Razer Blade 15 and Dell Inspiron 14 5420 are both good for general use.
The Dell Inspiron 14 5420 is appreciated for general use due to its balance of CPU power, adequate RAM, and screen quality that enhance everyday tasks, combined with its superior portability and longer battery life, simplifying on-the-go use. In contrast, the Razer Blade 15 stands out with its high-performance CPU, larger and higher-quality screen, along with ample storage and excellent keyboard, but sacrifices some battery life and portability, making it less convenient for constant travel.
Software Development
7.4
7.7
6.9/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
16.0 GB
2240 x 1400
RESOLUTION
2560 x 1440
7.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 15 and Dell Inspiron 14 5420 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 5420 and the Razer Blade 15 compare to other laptops
Spec Comparison
 |  | |
| Dell Inspiron 14 5420 | Razer Blade 15 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$971 | $2,500 | ||
Release Date | |||
Release Date | May 1, 2022 | January 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 12.4'' x 9'' x 0.7'' | 14'' x 9.3'' x 0.67'' | |
Weight | |||
Weight | 3.4 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 | 10 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 | 2240 x 1400 | 2560 x 1440 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 279 nits | 271 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7/10 | 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 | 6.5/10 | 7/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 7.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7.5/10 | 8/10 | |
Webcam | |||
Webcam | 1080p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 3 | |
USB-C ports | |||
USB-C ports | 1 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 2 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | N/A | 4 | |
Shopping
Dell Inspiron 14 5420
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Dig into reviews and images
Smarthouse
Nick Ross | March 2023
"If laptops were food, then the Dell Inspiron 14 5420 is arguably a Big Mac. There are cheaper and more expensive options, but this arguably represents the baseline of quality and value in the world of mobile computing… something that’s underlined by the attractive $1,279 price tag."
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 5420 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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