Choosing between the Lenovo IdeaPad Slim 7i and the Razer Blade 15 depends on your priorities. The IdeaPad is more budget-friendly, offers decent performance for general tasks, is lighter and thus more portable, and has a longer battery life, making it an excellent choice for everyday use and carrying around. On the other hand, the Razer Blade 15 costs more but brings you much higher performance for 3D rendering, machine learning, and engineering software, boasts a higher-quality display with faster refresh rates, and better graphics, which is ideal for intensive gaming or professional graphics work. However, it's heavier and has a shorter 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 IdeaPad Slim 7i
Very good portability
Very 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
6.2/10
8.0/10
3.7/10
OVERALL GPU SCORE
8.0/10
1920 x 1080
RESOLUTION
2560 x 1440
60Hz
REFRESH RATE
240Hz
No
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
9.5/10
FAN NOISE SCORE
7.0/10
The Razer Blade 15 is very good for gaming and AI, while the Lenovo IdeaPad Slim 7i is only fair.
The Razer Blade 15 offers a superior gaming and 3D experience due to its high-performance Nvidia RTX 3070 Ti graphics card and significantly higher screen refresh rate, making it excellent for fast-paced games where visual fluidity is key. In contrast, the Lenovo IdeaPad Slim 7i has a lower-tier integrated GPU and a standard refresh rate screen that only provide fair gaming capability, suitable for less demanding games and applications.
Engineering and Design
7.1/10
8.5/10
5.5/10
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 7i is good.
The Razer Blade 15 outperforms the Lenovo IdeaPad Slim 7i in engineering and design due to its superior CPU and GPU, which enable more complex computations and better graphical performance; this is coupled with a higher quality screen which is essential for design precision. However, the IdeaPad Slim 7i is lighter and offers improved portability and longer battery life, which are significant considerations for users who frequently move around.
Screen Quality
6.9/10
8.2/10
14.0in
SIZE
15.6in
1920 x 1080
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
240Hz
340.0 nits
BRIGHTNESS
271.0 nits
The Razer Blade 15 has a better screen than the Lenovo IdeaPad Slim 7i for general use, gaming and AI, engineering and design, and software development.
For general use, both the Lenovo IdeaPad Slim 7i and the Razer Blade 15 offer pleasing visuals with their respective high-resolution and bright displays, making text and images clear and vibrant. Engineers and designers will appreciate the wide color gamuts of these laptops, which ensure that colors are reproduced accurately and consistently, vital for precision work. However, gamers might find both laptops less attractive due to lower refresh rates, which can make fast-paced games less smooth compared to screens designed specifically for gaming.
Battery
11.5 Hours
5.0 Hours
The Lenovo IdeaPad Slim 7i has 11.5 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.
Portability
Very Good
Good
14.0in
SIZE
15.6in
2.9 lbs
WEIGHT
4.4 lbs
0.5in
THICKNESS
0.6in
The Lenovo IdeaPad Slim 7i has very good portability, while the Razer Blade 15 has good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.8/10
8.5/10
The Razer Blade 15 has very good build quality, while the Lenovo IdeaPad Slim 7i has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$899
$2,500
$0
$1,000
$2,000
$3,000
$4,000
The Lenovo IdeaPad Slim 7i has a price of $899 and the Razer Blade 15 costs $2,500.
The Razer Blade 15 and Lenovo IdeaPad Slim 7i are both good for general use.
The Lenovo IdeaPad Slim 7i is equipped with a capable CPU, ample RAM, and a quality IPS screen, and it's praised for its portability and long battery life, making it an excellent match for general use. In contrast, the Razer Blade 15, while offering a more powerful CPU and a higher resolution screen that excels in color accuracy, trades off with a shorter battery life and less portability, yet remains a strong candidate for general and multimedia use due to its superior graphics performance.
Content Creation
7.7/10
8.0/10
5.5/10
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 IdeaPad Slim 7i 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
7.5/10
7.7/10
5.5/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1440
8.0/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 15 and Lenovo IdeaPad Slim 7i 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.
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How the Lenovo IdeaPad Slim 7i and the Razer Blade 15 compare to other laptops
"Among Lenovo's multiple laptop brands, the IdeaPad family is decidedly the one designed for consumers: people who want decent performance at a reasonable price. Consider, then, this laptop a paragon for the pickier members of that crowd. With a 14-inch touch-enabled display, a comfortable keyboard, an Evo-certified Intel Core i7 11th Generation CPU, and the latest Windows 11 operating system, the IdeaPad Slim 7i Pro ultraportable ($1,199 as tested) is a slick mainstream machine at a bit of a premium price, and quite capable for everyday tasks."
"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 7i 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.
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.
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