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What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
The Lenovo Legion Slim 7 offers good value with a midrange price, suitable for general use and gaming, and provides around 9 hours of battery life. It is comparatively lighter and more portable than the Razer Blade 18, making it a good fit if you need to carry your laptop often. In contrast, the Razer Blade 18 comes with a higher price tag, but it has a larger, more vivid display and a significantly more powerful processor and graphics card, which makes it well-suited for intensive 3D work, machine learning, or gaming. However, this comes at the expense of battery life, which is around 4 hours, and it is heavier, which may affect portability. 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 portability
- Good battery life
Advantages of the Razer Blade 18
- Very good for general use
- Excellent for engineering and design
- Very good for gaming and AI
- Very good for software development
- Very good for content creation
- Very good overall display quality
- Very good overall build quality
- Best in class speakers
- Excellent keyboard
Key differences
General Use
7.7
8.5
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
350.0 nits
DISPLAY BRIGHTNESS
524.0 nits
9.0 Hours
BATTERY LIFE
4.0 Hours
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.6/10
PORTABILITY SCORE
6.1/10
The Razer Blade 18 is very good for general use, while the Lenovo Legion Slim 7 15.6" is good.
The Razer Blade 18 is deemed very good for general use because it has a powerful Intel processor, double the RAM, and a higher-resolution screen compared to the Lenovo Legion Slim 7. However, the Lenovo Legion Slim 7 is more portable owing to its lighter weight and offers longer battery life, making it a good choice for those prioritizing mobility over top-tier specs.
Gaming and AI
7.4
8.9
7.1/10
OVERALL GPU SCORE
8.9/10
1920 x 1080
RESOLUTION
2560 x 1600
165Hz
REFRESH RATE
240Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.5/10
FAN NOISE SCORE
7.2/10
The Razer Blade 18 is very good for gaming and AI, while the Lenovo Legion Slim 7 15.6" is good.
The Lenovo Legion Slim 7 is equipped with an Nvidia RTX 3060 and a 165Hz refresh rate screen, making it a good fit for gaming and 3D applications, while the Razer Blade 18's superior Nvidia RTX 4070 GPU and higher 240Hz refresh rate position it as an excellent choice for these tasks. While both laptops offer high-quality screens and capable CPUs, the Razer Blade 18 provides a more fluid visual experience and stronger graphics performance, vital for the most demanding games and 3D work.
Engineering and Design
7.8
9.3
7.4/10
OVERALL CPU SCORE
9.9/10
7.1/10
OVERALL GPU SCORE
8.9/10
16.0 GB
RAM
32.0 GB
The Razer Blade 18 is excellent for engineering and design, while the Lenovo Legion Slim 7 15.6" is good.
The Razer Blade 18 outperforms the Lenovo Legion Slim 7 for engineering and design tasks due to its superior CPU and GPU, as well as double the RAM and a higher quality screen, which are crucial for such intensive applications. While the Lenovo offers better portability and near-adequate specs for many engineering scenarios, its performance is outmatched by the Razer, which though less portable and likely louder due to cooling requirements, offers a significantly more powerful work experience.
Content Creation
7.7
8.6
7.4/10
OVERALL CPU SCORE
9.9/10
1920 x 1080
RESOLUTION
2560 x 1600
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Razer Blade 18 is 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
8.5
7.4/10
OVERALL CPU SCORE
9.9/10
16.0 GB
RAM
32.0 GB
1920 x 1080
RESOLUTION
2560 x 1600
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 18 is very good for software development, while the Lenovo Legion Slim 7 15.6" is good.
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.
Screen Quality
7.7
8.9
15.6in
SIZE
18.0in
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
240Hz
350.0 nits
BRIGHTNESS
524.0 nits
The Razer Blade 18 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 crisp images and vibrant colors thanks to its high resolution and bright panel, great for everyday tasks and professional design work, although its lower refresh rate isn't ideal for gaming or 3D modeling, where smoother motion is key. The Razer Blade 18's screen also boasts a high resolution and brightness, along with a wide color gamut, rendering it excellent for both daily use and color-sensitive engineering tasks, yet it falls short for gaming and fast-paced 3D applications because of its less-than-optimal refresh rate. Therefore, while both laptops provide strong visuals for general and engineering usage, neither is optimized for the fast refresh requirements of gaming and 3D environments.
Battery
9.0 Hours
4.0 Hours
The Lenovo Legion Slim 7 has 9 hours of battery life. The Razer Blade 18 has 4 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
Fair
15.6in
SIZE
18.0in
4.1 lbs
WEIGHT
6.6 lbs
0.6in
THICKNESS
0.8in
The Lenovo Legion Slim 7 15.6" has good portability, while the Razer Blade 18 has only fair portability.
The most portable laptops are small, thin, and light.
Build Quality
7.6
8.5
The Razer Blade 18 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
$3,200
$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 18 costs $3,200.
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How the Lenovo Legion Slim 7 15.6" and the Razer Blade 18 compare to other laptops
Spec Comparison
 |  | |
| Lenovo Legion Slim 7 15.6" | Razer Blade 18 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,200 | $3,200 | ||
Release Date | |||
Release Date | May 1, 2022 | February 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.9'' x 0.69'' | 15.7'' x 10.8'' x 0.86'' | |
Weight | |||
Weight | 4.19 lbs | 6.68 lbs | |
Width | |||
Width | 14.02" | 15.7" | |
Depth | |||
Depth | 9.92" | 10.8" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 7 5800H | Intel i9-13950HX | |
RAM | |||
RAM | 16 GB | 32 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 | 4 Hours | |
Battery Capacity | |||
Battery Capacity | 71 Wh | 91.7 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 18" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 350 nits | 524 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.6/10 | 6.2/10 | |
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 | 7.3/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8/10 | 9.5/10 | |
Webcam | |||
Webcam | 720p | 1440p | |
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"
See more
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 18
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Dig into reviews and images
PCMag
Matthew Buzzi | March 2023
"Razer made a powerful laptop in the Blade 18, showing off a beautiful and fast display and the same high-quality build we’ve come to expect from this product line. It’s also quite expensive, which is hardly a surprise, but bears repeating even in this price range. It’s pricier than the Scar 18 despite an inferior GPU and half the storage, so you really have to want the Blade 18’s design to justify the cost."
Get a great deal on the Lenovo Legion Slim 7 15.6" or the Razer Blade 18
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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