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Updated January 10, 2024·
The Lenovo Legion Slim 7 offers a midrange price and often comes less expensive than the Razer Blade 15. If cost is a major factor for you, the Lenovo might be more appealing. It has decent battery life, which is great for portability, and it's suitable for intensive gaming with a high refresh rate display. On the other hand, the Razer Blade 15, while more expensive, has a higher resolution display, a more powerful graphics card for 3D and machine learning tasks, and superior build quality. If you require better performance for engineering software or more premium features, the Razer Blade 15 would be the better choice. Both laptops have sufficient power for general use and gaming, but the Razer excels in tasks that demand more graphical power. 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 Legion Slim 7 15.6"
- 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
- Excellent keyboard
Key differences
Gaming and AI
7.4
8.0
7.1/10
OVERALL GPU SCORE
8.0/10
1920 x 1080
RESOLUTION
2560 x 1440
165Hz
REFRESH RATE
240Hz
Yes
SUPPORTS DLSS
Yes
Yes
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 Legion Slim 7 15.6" is good.
The Lenovo Legion Slim 7 offers solid gaming and 3D performance with its Nvidia RTX 3060 and a high screen refresh rate, while the Razer Blade 15 steps it up with an even more powerful Nvidia RTX 3070 Ti and a top-tier refresh rate, enhancing gameplay smoothness and graphical detail. Both have quality displays but the Razer's higher screen resolution means crisper images, which alongside its superior GPU, makes it particularly appealing for demanding gaming and intensive 3D tasks.
Engineering and Design
7.8
8.5
7.4/10
OVERALL CPU SCORE
9.0/10
7.1/10
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 Legion Slim 7 15.6" is good.
The Lenovo Legion Slim 7 is equipped with an AMD Ryzen 7 and Nvidia RTX 3060 which provide solid performance for engineering and design, but the Razer Blade 15's Intel i7 and Nvidia RTX 3070 Ti offer superior performance, capable of handling more demanding tasks with ease.
Screen Quality
7.7
8.2
15.6in
SIZE
15.6in
1920 x 1080
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
240Hz
350.0 nits
BRIGHTNESS
271.0 nits
The Razer Blade 15 has a better screen than the Lenovo Legion Slim 7 for general use, gaming and AI, engineering and design, content creation, and software development.
The Lenovo Legion Slim 7's display offers vibrant colors and adequate resolution for everyday tasks and professional design work, with its brightness ensuring good visibility even in well-lit environments. However, for gaming and 3D applications, its lower refresh rate might not deliver the smooth visuals avid gamers seek. On the other hand, the Razer Blade 15 provides similar benefits for general use and creative professionals due to high color accuracy and resolution but falls short for gaming, again due to a refresh rate that might not keep pace with fast-moving images demanded by modern games.
Battery
9.0 Hours
5.0 Hours
The Lenovo Legion Slim 7 has 9 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 Legion Slim 7 15.6" has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$1,200
$2,500
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The Lenovo Legion Slim 7 15.6" has a price of $1,200 and the Razer Blade 15 costs $2,500.
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Key similarities
General Use
7.7
7.9
1920 x 1080
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
350.0 nits
DISPLAY BRIGHTNESS
271.0 nits
9.0 Hours
BATTERY LIFE
5.0 Hours
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.6/10
PORTABILITY SCORE
7.7/10
The Razer Blade 15 and Lenovo Legion Slim 7 15.6" are both good for general use.
The Lenovo Legion Slim 7 15.6" offers suitable performance for everyday tasks, with competent CPU and RAM, a high-quality screen, and better battery life for extended use without charging, making it portable and reliable for general use. In contrast, the Razer Blade 15 also provides strong performance with a high-quality display and superior screen resolution, but its shorter battery life means it may require more frequent charging, although it compensates with a more premium feel in aspects like keyboard and speaker quality.
Content Creation
7.7
8.0
7.4/10
OVERALL CPU SCORE
9.0/10
1920 x 1080
RESOLUTION
2560 x 1440
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
Although they have very similar scores, PerfectRec considers Razer Blade 15 to be very good for content creation, while the Lenovo Legion Slim 7 15.6" 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.
Software Development
7.5
7.7
7.4/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1440
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 15 and Lenovo Legion Slim 7 15.6" 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
15.6in
SIZE
15.6in
4.1 lbs
WEIGHT
4.4 lbs
0.6in
THICKNESS
0.6in
The Razer Blade 15 and Lenovo Legion Slim 7 15.6" both have good portability.
The most portable laptops are small, thin, and light.
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How the Lenovo Legion Slim 7 15.6" and the Razer Blade 15 compare to other laptops
Spec Comparison
 |  | |
| Lenovo Legion Slim 7 15.6" | Razer Blade 15 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,200 | $2,500 | ||
Release Date | |||
Release Date | May 1, 2022 | January 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.9'' x 0.69'' | 14'' x 9.3'' x 0.67'' | |
Weight | |||
Weight | 4.19 lbs | 4.4 lbs | |
Width | |||
Width | 14.02" | 13.98" | |
Depth | |||
Depth | 9.92" | 9.25" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 7 5800H | Intel i7-12800H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 1 | 2 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 9 Hours | 5 Hours | |
Battery Capacity | |||
Battery Capacity | 71 Wh | 80 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 15.6" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 2560 x 1440 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 350 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 | Yes | 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 | 8.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8/10 | 8/10 | |
Webcam | |||
Webcam | 720p | 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 | 2 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | N/A | 4 | |
Shopping
Lenovo Legion Slim 7 15.6"
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Dig into reviews and images
NotebookCheck
Benjamin Herzig | November 2022
"The Lenovo Legion Slim 7 is a slim Legion notebook that is just as excellent with Nvidia & Intel. However, the Legion Slim 7i slightly sullied by lacklustre battery life. You get a slim aluminium chassis, great input devices, decent port selection, fast high-quality WQXGA display and great performance. Supporting Thunderbolt 4 is one advantage of the Intel/Nvidia model tested in this review. Moreover, this variant has slightly higher CPU performance as well as better GPU performance in certain applications (e.g. CUDA-based apps). The Lenovo Legion S7i is thin, premium and performant – but less efficient than its AMD counterpart."
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 Legion Slim 7 15.6" 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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