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What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
For general use and with a lower budget in mind, the Lenovo Legion Slim 5i is a more cost-effective choice and still offers solid performance. It's lighter and slimmer, making it more portable, and it has better battery life, which could be beneficial if you're often on the move. For more intensive tasks like engineering software, 3D rendering, or machine learning, the Razer Blade 17 excels due to its more powerful processor and graphics card, as well as more RAM, which gives it a performance edge. However, it is heavier and has shorter battery life, which could be a drawback if you're frequently traveling or away from power outlets. Both have high-quality displays but the Razer Blade 17 has a larger and higher resolution screen, which can be better for detailed work or entertainment, though this contributes to its decreased battery life. 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 5i
- Good battery life
Advantages of the Razer Blade 17
- Very good for general use
- Excellent for engineering and design
- Very good for software development
- Very good overall build quality
- Excellent speakers
- Excellent keyboard
Key differences
General Use
7.9
8.5
2560 x 1600
RESOLUTION
3840 x 2160
IPS
DISPLAY TECHNOLOGY
IPS
343.0 nits
DISPLAY BRIGHTNESS
486.0 nits
7.0 Hours
BATTERY LIFE
5.5 Hours
8.5/10
KEYBOARD QUALITY SCORE
9.0/10
6.7/10
PORTABILITY SCORE
6.7/10
The Razer Blade 17 is very good for general use, while the Lenovo Legion Slim 5i is good.
The Razer Blade 17 outclasses the Lenovo Legion Slim 5i in terms of screen quality with a higher resolution display, more vivid colors, and a greater contrast ratio, which contributes to a very good general-use experience. However, the Lenovo offers a better balance between power and portability, with a slightly lighter build and longer battery life, making it a solid choice for those who prioritize portability and battery longevity in their general-use laptop.
Gaming and AI
8.0
8.6
8.4/10
OVERALL GPU SCORE
9.2/10
2560 x 1600
RESOLUTION
3840 x 2160
165Hz
REFRESH RATE
144Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
6.5/10
FAN NOISE SCORE
7.2/10
The Razer Blade 17 and Lenovo Legion Slim 5i are both very good for gaming and AI, though the Razer Blade 17 is somewhat better.
The Lenovo Legion Slim 5i is great for gaming and 3D with its Nvidia RTX 4060 GPU and a 165Hz screen refresh rate for smooth visuals; however, the Razer Blade 17 excels in this realm due to a more powerful Nvidia RTX 3080 Ti GPU and its higher screen quality, despite a slightly lower refresh rate of 144Hz.
Engineering and Design
8.4
9.1
9.0/10
OVERALL CPU SCORE
9.2/10
8.4/10
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 5i is very good.
PerfectRec’s Engineering and Design Score takes into account the many different features of the laptop that make it more or less suitable for graphic design and 3D rendering work.
Content Creation
8.0
8.5
9.0/10
OVERALL CPU SCORE
9.2/10
2560 x 1600
RESOLUTION
3840 x 2160
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Razer Blade 17 and Lenovo Legion Slim 5i are both very good for content creation, though the Razer Blade 17 is somewhat better.
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
7.8
8.5
9.0/10
OVERALL CPU SCORE
9.2/10
16.0 GB
RAM
32.0 GB
2560 x 1600
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 5i 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
8.0
8.6
16.0in
SIZE
17.3in
2560 x 1600
RESOLUTION
3840 x 2160
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
144Hz
343.0 nits
BRIGHTNESS
486.0 nits
The Razer Blade 17 has a better screen than the Lenovo Legion Slim 5i for general use, gaming and AI, engineering and design, content creation, and software development.
When considering screen quality for general use, the Lenovo Legion Slim 5i and Razer Blade 17 both excel due to their panels' high resolution and brightness, making for crisp, vibrant displays suitable for everyday activities. For engineering and design, the Razer Blade 17 stands out with a wider range of colors it can display, crucial for accuracy in professional visual work, whereas the Legion Slim 5i's color range is less suited for these precise tasks. However, for gaming and 3D applications where the smoothness of motion is key, both laptops fall short as their refresh rates are not as high as what is typically desired for fast-paced, fluid visuals.
Battery
7.0 Hours
5.5 Hours
The Lenovo Legion Slim 5i has 7 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.
Build Quality
7.4
8.5
The Razer Blade 17 has very good build quality, while the Lenovo Legion Slim 5i has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$1,055
$4,300
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The Lenovo Legion Slim 5i has a price of $1,055 and the Razer Blade 17 costs $4,300.
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Key similarities
Portability
Fair
Fair
16.0in
SIZE
17.3in
5.2 lbs
WEIGHT
6.0 lbs
0.9in
THICKNESS
0.7in
The Razer Blade 17 and Lenovo Legion Slim 5i both have only fair portability.
The most portable laptops are small, thin, and light.
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We’re constantly working to improve.
How the Lenovo Legion Slim 5i and the Razer Blade 17 compare to other laptops
Spec Comparison
 |  | |
| Lenovo Legion Slim 5i | Razer Blade 17 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,055 | $4,300 | ||
Release Date | |||
Release Date | May 1, 2023 | February 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 10.3'' x 0.99'' | 15.6'' x 10.2'' x 0.78'' | |
Weight | |||
Weight | 5.29 lbs | 6.06 lbs | |
Width | |||
Width | 14.16" | 15.55" | |
Depth | |||
Depth | 10.25" | 10.24" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-13700H | Intel i9-12900H | |
RAM | |||
RAM | 16 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7 Hours | 5.5 Hours | |
Battery Capacity | |||
Battery Capacity | 80 Wh | 82 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 16" | 17.3" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1600 | 3840 x 2160 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 144Hz | |
Display Brightness | |||
Display Brightness | 343 nits | 486 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.4/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 6.7/10 | 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 | 6.5/10 | 7.3/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7/10 | 9.1/10 | |
Webcam | |||
Webcam | 1080p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | 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 Legion Slim 5i
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Dig into reviews and images
PCMag
Mark Knapp | August 2023
"The Lenovo Legion Slim 5 Gen 8 acknowledges that a gaming laptop doesn’t have to be as thick as possible and can still ensure adequate cooling when the muscles need flexing. To this end, in the Slim 5 Gen 8, it finds a neat balance of refined, trimmed-down design that still lets its internals cruise (even above their max power ratings). Lenovo then added in some high-end build quality with an altogether excellent keyboard that’s useful for both work and play."
Razer Blade 17
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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 5i 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.
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