The Lenovo Flex 5 14 is a more affordable, versatile 2-in-1 device that allows for usage as both laptop and tablet, catering to everyday tasks with decent performance and better portability due to its lighter weight. It has an average battery life. In contrast, the Razer Blade 15 boasts more powerful hardware fit for gaming and demanding applications, with a high-resolution screen and faster refresh rate, making it suitable for intensive tasks but comes with a higher price tag and heavier weight which impacts portability. The choices between these two laptops largely depend on your budget and whether your usage leans towards casual or performance-intensive computing. 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 Flex 5 14
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
3.6/10
OVERALL GPU SCORE
8.0/10
1920 x 1200
RESOLUTION
2560 x 1440
60Hz
REFRESH RATE
240Hz
No
SUPPORTS DLSS
Yes
No
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 Flex 5 14 is only fair.
The Razer Blade 15 boasts a high-end Nvidia RTX 3070 Ti graphics card and a high screen refresh rate, which are quintessential for top-notch gaming and smooth 3D experiences. In contrast, the Lenovo Flex 5 14 is equipped with an integrated AMD Ryzen Vega 8 GPU and a lower refresh rate, making it less suited for intensive gaming and 3D applications when compared to the Razer Blade 15.
Engineering and Design
7.0/10
8.5/10
6.9/10
OVERALL CPU SCORE
9.0/10
3.6/10
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 Flex 5 14 is good.
The Razer Blade 15, with its more powerful Intel processor and high-end Nvidia graphics, excels in processing and graphic-intensive tasks like engineering and design applications compared to the Lenovo Flex 5 14, which has a capable AMD processor and integrated graphics suitable for less demanding engineering tasks.
Screen Quality
6.4/10
8.2/10
14.0in
SIZE
15.6in
1920 x 1200
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
240Hz
277.0 nits
BRIGHTNESS
271.0 nits
The Razer Blade 15 has a better screen than the Lenovo Flex 5 14 for general use, gaming and AI, engineering and design, content creation, and software development.
For general use, the Lenovo Flex 5 14 offers adequate resolution and brightness, making it suitable for everyday tasks, while the Razer Blade 15 provides sharper visuals and higher brightness, enhancing the overall viewing experience. In engineering and design, the Razer Blade 15 stands out with its wider color gamuts, which allows for more precise color work, a key element missing from the Lenovo Flex 5 14's display capabilities. However, for Gaming and 3D, neither the Lenovo Flex 5 14 nor the Razer Blade 15 excel due to their lower refresh rates, resulting in less fluid motion compared to laptops tailored for these specific tasks.
Battery
11.5 Hours
5.0 Hours
The Lenovo Flex 5 14 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
3.4 lbs
WEIGHT
4.4 lbs
0.7in
THICKNESS
0.6in
The Lenovo Flex 5 14 has very good portability, while the Razer Blade 15 has good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.0/10
8.5/10
The Razer Blade 15 has very good build quality, while the Lenovo Flex 5 14 has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$950
$2,500
$0
$1,000
$2,000
$3,000
$4,000
The Lenovo Flex 5 14 has a price of $950 and the Razer Blade 15 costs $2,500.
The Razer Blade 15 and Lenovo Flex 5 14 are both good for general use.
PerfectRec’s General Use Score takes into account the many different features of the laptop that make it more or less suitable for general productivity, web browsing, streaming, video calls, and running a wide variety of apps and programs.
Content Creation
7.6/10
8.0/10
6.9/10
OVERALL CPU SCORE
9.0/10
1920 x 1200
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 Flex 5 14 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
7.4/10
7.7/10
6.9/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
16.0 GB
1920 x 1200
RESOLUTION
2560 x 1440
7.0/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 15 and Lenovo Flex 5 14 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 Flex 5 14 and the Razer Blade 15 compare to other laptops
"The highlight of the latest IdeaPad Flex 5 14 is clearly its AMD CPU. The octa-core Ryzen 7 5700U is insanely fast even when compared to the best Tiger Lake Ultrabooks in the market or even Core H CPUs in many gaming laptops. It's a lot of raw processing power for what is supposed to be a budget 14-inch convertible. If your daily workloads can benefit from extra multi-thread CPU performance, then look no further than the inexpensive AMD-powered Lenovo IdeaPad Flex 5 14. For regular on-the-road browsing or video streaming, however, a slimmer and lighter 10th gen Core Yoga, Spectre, or XPS would be a more balanced option."
"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 Flex 5 14 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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