A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
If you prioritize portability and are looking for a more budget-friendly option, the Lenovo Legion Slim 7 with its lighter weight might suit you better for general use and decent gaming performance. However, if you need a laptop with more power for intensive tasks like 3D rendering or engineering software, and are willing to invest more money and accept less portability for a larger, higher-resolution display, the Razer Blade 17 could be the better choice for its superior performance and screen quality. Both are suitable for gaming, but the Razer's features make it more optimal for high-end gaming experiences. 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 17
- 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
- Excellent speakers
- Excellent keyboard
Key differences
General Use
7.7
8.5
1920 x 1080
RESOLUTION
3840 x 2160
IPS
DISPLAY TECHNOLOGY
IPS
350.0 nits
DISPLAY BRIGHTNESS
486.0 nits
9.0 Hours
BATTERY LIFE
5.5 Hours
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.6/10
PORTABILITY SCORE
6.7/10
The Razer Blade 17 is very good for general use, while the Lenovo Legion Slim 7 15.6" is good.
The Lenovo Legion Slim 7 offers a solid balance for general use with its decent processor, ample RAM, and good portability due to its lighter weight and good battery life, while the Razer Blade 17 stands out with a stronger processor, double the RAM for more demanding tasks, and superior screen quality, but it is less portable due to its larger size and heavier weight, which also contributes to a shorter battery life. Both laptops have quality keyboards and speakers, but the Razer Blade 17 offers more storage space and better overall build quality, justifying its position as very good for general use despite being less convenient to carry around.
Gaming and AI
7.4
8.6
7.1/10
OVERALL GPU SCORE
9.2/10
1920 x 1080
RESOLUTION
3840 x 2160
165Hz
REFRESH RATE
144Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.5/10
FAN NOISE SCORE
7.2/10
The Razer Blade 17 is very good for gaming and AI, while the Lenovo Legion Slim 7 15.6" is good.
The Razer Blade 17 offers superior gaming and 3D performance due to its more powerful Nvidia RTX 3080 Ti graphics unit compared to the Lenovo Legion Slim 7's Nvidia RTX 3060, although the Lenovo has a slightly higher screen refresh rate which is beneficial for smoother visuals in fast-paced games. Additionally, the Razer Blade 17's screen quality is enhanced by a higher resolution display, which, alongside its advanced GPU, provides more detailed and immersive visuals for gaming and 3D applications.
Engineering and Design
7.8
9.1
7.4/10
OVERALL CPU SCORE
9.2/10
7.1/10
OVERALL GPU SCORE
9.2/10
16.0 GB
RAM
32.0 GB
The Razer Blade 17 is excellent for engineering and design, while the Lenovo Legion Slim 7 15.6" is good.
The Razer Blade 17 surpasses the Lenovo Legion Slim 7 in performance for engineering and design tasks due to its more powerful Intel i9 processor, twice the RAM, and a superior GPU with Nvidia RTX 3080 Ti compared to Lenovo's RTX 3060, along with a higher resolution screen for sharper detail. However, the Lenovo Legion Slim 7 offers better portability with its lighter weight and slightly longer battery life, along with good CPU and GPU performance that still caters well to engineering and design needs, but the Razer Blade's far superior specs give it an edge for the most demanding tasks.
Content Creation
7.7
8.5
7.4/10
OVERALL CPU SCORE
9.2/10
1920 x 1080
RESOLUTION
3840 x 2160
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Razer Blade 17 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
9.2/10
16.0 GB
RAM
32.0 GB
1920 x 1080
RESOLUTION
3840 x 2160
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 17 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
8.6
15.6in
SIZE
17.3in
1920 x 1080
RESOLUTION
3840 x 2160
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
144Hz
350.0 nits
BRIGHTNESS
486.0 nits
The Razer Blade 17 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 and Razer Blade 17 both offer high resolution and brightness with panel types suitable for sharp and vivid displays, facilitating a pleasant experience for general use and detailed visuals necessary for engineering and design tasks. However, both fall short for gaming and 3D applications due to lower refresh rates, which can result in less smooth motion and responsiveness, a key factor for a good gaming or 3D experience. The Razer Blade 17 stands out with better coverage of color gamuts like DCI-P3 and Adobe RGB, making it more suitable for professional design work where color accuracy is critical.
Battery
9.0 Hours
5.5 Hours
The Lenovo Legion Slim 7 has 9 hours of battery life. The Razer Blade 17 has 5.5 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
Good
Fair
15.6in
SIZE
17.3in
4.1 lbs
WEIGHT
6.0 lbs
0.6in
THICKNESS
0.7in
The Lenovo Legion Slim 7 15.6" has good portability, while the Razer Blade 17 has only fair portability.
The most portable laptops are small, thin, and light.
Build Quality
7.6
8.5
The Razer Blade 17 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
$4,300
$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 17 costs $4,300.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Give feedback
We’re constantly working to improve.
How the Lenovo Legion Slim 7 15.6" and the Razer Blade 17 compare to other laptops
Spec Comparison
 |  | |
| Lenovo Legion Slim 7 15.6" | Razer Blade 17 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,200 | $4,300 | ||
Release Date | |||
Release Date | May 1, 2022 | February 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.9'' x 0.69'' | 15.6'' x 10.2'' x 0.78'' | |
Weight | |||
Weight | 4.19 lbs | 6.06 lbs | |
Width | |||
Width | 14.02" | 15.55" | |
Depth | |||
Depth | 9.92" | 10.24" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 7 5800H | Intel i9-12900H | |
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 | 5.5 Hours | |
Battery Capacity | |||
Battery Capacity | 71 Wh | 82 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 17.3" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 3840 x 2160 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 144Hz | |
Display Brightness | |||
Display Brightness | 350 nits | 486 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.6/10 | 6.8/10 | |
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 | 9.1/10 | |
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"
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 17
See more
Dig into reviews and images
NotebookCheck
Sascha Mölck | July 2022
"Our test configuration of the Blade 17 targets gamers and creative professionals. A Core i9-12900H processor, GeForce RTX 3080 Ti Laptop GPU (175 watts TGP after the BIOS update, 16 GB of VRAM), and 32 GB of working memory equip the laptop for video processing, rending, and 4k gaming at the highest level. In addition, a fast PCIe-4 SSD (1 TB) ensures short load and storage times. With the Blade 17 (Early 2022), Razer delivers a successful and powerful work device for creative professionals. But this also has its price."
Get a great deal on the Lenovo Legion Slim 7 15.6" or the Razer Blade 17
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.
Give feedback
We're constantly perfecting our model
Laptop guides you might be interested in
More comparisons for you
Compare Lenovo Legion Slim 7 15.6" vs. Dell Inspiron 14 Plus
VS
Compare Lenovo Legion Slim 7 15.6" vs. Lenovo Legion 5 15"
VS
Compare Lenovo Legion Slim 7 15.6" vs. Lenovo Slim Pro 7 14
VS
Compare Razer Blade 17 vs. MSI Raider GE78
VS
Compare Razer Blade 17 vs. Lenovo Legion 9i
VS
Compare Razer Blade 17 vs. MSI Raider 18 HX
VS
FAQs
FAQs about laptops
Why trust us
This information was produced and vetted by the PerfectRec laptops team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest laptop information and makes it digestible for you.
By the numbers
380
Laptops evaluated
48,640
Laptops stats compiled
13
Proprietary Laptops ratings developed
130,995
Recommendations made
28,383
Consumer hours saved
About the laptop team
Joe Golden, Ph.D
CEO and Laptops Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Craig Russell
Laptops Expert
Craig is a UK-based laptops expert. Craig works in IT, where he recommends and supports laptops and PCs for clients and has been recommending laptops on Reddit for five years.
Featured in
