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Updated January 10, 2024·
If you prioritize high-performance tasks such as 3D rendering, machine learning, or gaming, the Razer Blade 15, with its more powerful processor and advanced graphics card, will better suit your needs but it comes at a higher price and offers less battery life, making it less ideal for on-the-go use. On the other hand, if you're looking for a device more suitable for general use that is lighter on the wallet, offers longer battery life, and is easy to carry around, the Lenovo IdeaPad Slim 5i with sufficient capabilities for everyday tasks would be a more appropriate choice. 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 Lenovo IdeaPad Slim 5i
- 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
6.3
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 Lenovo IdeaPad Slim 5i is only fair.
The Razer Blade 15 is considered very good for gaming and 3D because it has a high-end Nvidia RTX 3070 Ti graphics card and a high refresh rate display, essential for smooth and immersive gameplay. In comparison, the Lenovo IdeaPad Slim 5i, while still fair for such tasks, has an integrated Intel Iris Xe GPU which is less powerful for gaming, and a standard refresh rate screen, which means less fluid visuals in fast-paced games.
Engineering and Design
7.0
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 Lenovo IdeaPad Slim 5i is good.
The Razer Blade 15 outperforms the Lenovo IdeaPad Slim 5i in engineering and design because it has a more powerful main processor and GPU, which is crucial for resource-intensive tasks, and it also offers a higher-resolution, higher-quality display, greatly benefiting visual work. Conversely, while the IdeaPad Slim 5i offers a decent processor and GPU, its lower screen quality might be less ideal for design work, and its components are not as capable as the Razer Blade 15’s for demanding engineering applications.
Content Creation
7.4
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 Lenovo IdeaPad Slim 5i 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
6.4
8.2
16.0in
SIZE
15.6in
1920 x 1200
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
240Hz
315.0 nits
BRIGHTNESS
271.0 nits
The Razer Blade 15 has a better screen than the Lenovo IdeaPad Slim 5i for general use, gaming and AI, engineering and design, content creation, and software development.
The Lenovo IdeaPad Slim 5i, with its fair screen quality, may have adequate resolution and brightness for daily tasks but may lack the wide color range needed for precision in engineering and design. The Razer Blade 15, boasting a sharper and brighter display, serves engineering and design professionals well with its superior color accuracy but falls short for gaming due to a lower refresh rate. Both laptops may struggle to satisfy gamers or 3D designers who often require high refresh rates for smooth visuals and responsiveness.
Battery
8.0 Hours
5.0 Hours
The Lenovo IdeaPad Slim 5i has 8 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.
Build Quality
7.6
8.5
The Razer Blade 15 has very good build quality, while the Lenovo IdeaPad Slim 5i has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$828
$2,500
$0
$1,000
$2,000
$3,000
$4,000
The Lenovo IdeaPad Slim 5i has a price of $828 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
315.0 nits
DISPLAY BRIGHTNESS
271.0 nits
8.0 Hours
BATTERY LIFE
5.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
9.0/10
7.6/10
PORTABILITY SCORE
7.7/10
The Razer Blade 15 and Lenovo IdeaPad Slim 5i are both good for general use.
The Lenovo IdeaPad Slim 5i is praised for general use due to its satisfactory screen quality, decent battery life, and comfortable keyboard, making it suitable for everyday tasks and media consumption. On the other hand, the Razer Blade 15, with its high-performance CPU, superior screen resolution, and robust build, caters to more demanding applications and gaming, all while maintaining a balance of portability and battery life, despite having higher operating noise and heat while under heavy usage.
Software Development
7.4
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 Lenovo IdeaPad Slim 5i 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.
Portability
Good
Good
16.0in
SIZE
15.6in
4.1 lbs
WEIGHT
4.4 lbs
0.7in
THICKNESS
0.6in
The Razer Blade 15 and Lenovo IdeaPad Slim 5i both have good portability.
The most portable laptops are small, thin, and light.
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How the Lenovo IdeaPad Slim 5i and the Razer Blade 15 compare to other laptops
Spec Comparison
 |  | |
| Lenovo IdeaPad Slim 5i | Razer Blade 15 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$828 | $2,500 | ||
Release Date | |||
Release Date | May 1, 2023 | January 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.9'' x 0.7'' | 14'' x 9.3'' x 0.67'' | |
Weight | |||
Weight | 4.17 lbs | 4.4 lbs | |
Width | |||
Width | 14.02" | 13.98" | |
Depth | |||
Depth | 9.88" | 9.25" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i5-1335U | Intel i7-12800H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 8 Hours | 5 Hours | |
Battery Capacity | |||
Battery Capacity | 56.6 Wh | 80 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 16" | 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 | 315 nits | 271 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.6/10 | 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 | 6.5/10 | 8/10 | |
Webcam | |||
Webcam | 1080p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | Yes | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 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
Lenovo IdeaPad Slim 5i
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Dig into reviews and images
HT Tech
Robin Sinha | February 2021
"The device is made for average work loads and if your work has a lot to do with online browsing, using apps that are not power-hungry and streaming videos. The looks are really good and the device in itself is not a heavy one. And with Intel 11th-gen Core processor, you might sail through most of your work without complaints."
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 Lenovo IdeaPad Slim 5i or the Razer Blade 15
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.
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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