The Lenovo Flex 5 16 offers a larger screen, a touchscreen with a higher resolution, and a longer battery life, all at a more affordable price, which makes it suitable for general use, especially if you prefer or require a touch interface and value extended use away from a power source. On the other hand, the Razer Blade 15, although more expensive, provides superior performance for 3D rendering, machine learning, and gaming, thanks to its high-end graphics card and fast refresh rate display. It is also slightly lighter, making it more portable, and has a more robust build, better heat management, and an overall higher quality feel, which is ideal if your work involves intensive engineering or gaming, and you're able to invest in a higher price point. 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 16
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
2560 x 1600
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 16 is only fair.
The Razer Blade 15 offers superior gaming and 3D performance primarily because it has a dedicated high-end Nvidia RTX 3070 Ti GPU and a high screen refresh rate of 240Hz, compared to the Lenovo Flex 5 16's integrated Intel Iris Xe graphics and a 60Hz screen refresh rate. Additionally, the Razer Blade's CPU is a more powerful variation, and it has a higher quality screen, which accentuates the difference between the two when it comes to gaming and 3D applications.
Engineering and Design
7.2/10
8.5/10
6.9/10
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 Flex 5 16 is good.
The Razer Blade 15 is very good for engineering and design due to its powerful Intel i7 processor coupled with an Nvidia RTX GPU, essential for demanding tasks, and a high refresh rate screen with wider color coverage for detail-oriented work. In contrast, the Lenovo Flex 5 16 with a less powerful GPU and lower screen refresh rate, though still suitable for engineering, offers better portability and flexibility as a 2-in-1 convertible laptop, appealing for on-the-go use and presentations.
Screen Quality
7.3/10
8.2/10
16.0in
SIZE
15.6in
2560 x 1600
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
240Hz
400.0 nits
BRIGHTNESS
271.0 nits
The Razer Blade 15 has a better screen than the Lenovo Flex 5 16 for general use, gaming and AI, engineering and design, and software development.
For general use, the Lenovo Flex 5 16 offers a crisp display with adequate resolution and brightness, making it comfortable for everyday tasks like browsing and video streaming, while the Razer Blade 15 brings even higher resolution and brightness, enhancing visual clarity and detail. In engineering and design, both laptops provide good color accuracy with their color gamut coverage, but the Razer Blade 15's more comprehensive color range offers a slight edge for professionals needing precision in color-sensitive work. However, gamers and 3D designers may find both lacking due to their screens' lower refresh rates, which can result in less smooth visuals in fast-paced scenarios and rendering tasks.
Battery
11.5 Hours
5.0 Hours
The Lenovo Flex 5 16 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.
Build Quality
7.0/10
8.5/10
The Razer Blade 15 has very good build quality, while the Lenovo Flex 5 16 has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$779
$2,500
$0
$1,000
$2,000
$3,000
$4,000
The Lenovo Flex 5 16 has a price of $779 and the Razer Blade 15 costs $2,500.
The Razer Blade 15 and Lenovo Flex 5 16 are both good for general use.
The Lenovo Flex 5 16, with its versatile design and balanced CPU and RAM, offers a smooth experience for everyday tasks, a quality screen for media consumption, and is light enough for on-the-go use with decent battery life. On the other hand, the Razer Blade 15, while also providing a good CPU and ample RAM for general use, excels with a higher-end screen and robust build but is heavier and comes with a premium price, which might not favor those prioritizing portability and budget.
Content Creation
7.6/10
8.0/10
6.9/10
OVERALL CPU SCORE
9.0/10
2560 x 1600
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 16 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
6.9/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
2560 x 1440
7.0/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 15 and Lenovo Flex 5 16 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.
Portability
Good
Good
16.0in
SIZE
15.6in
4.6 lbs
WEIGHT
4.4 lbs
0.7in
THICKNESS
0.6in
The Razer Blade 15 and Lenovo Flex 5 16 both have good portability.
The most portable laptops are small, thin, and light.
Give feedback
We’re constantly working to improve.
How the Lenovo Flex 5 16 and the Razer Blade 15 compare to other laptops
"The Lenovo IdeaPad Flex 5 is a solidly equipped, 2-in-1 in the lower price segment. Performance is definitely sufficient for everyday tasks and in tests the battery proved itself to be very economical. That aside, there is a lot of standard fare on show and a search for real highlights ends in vain. The low color coverage and reflective display can be avoided by going for an optional 2.5K display but this also presumably results in poorer battery life. The cooling uses only one fan and leads to a raised temperature on one side of the device under load. Additionally, there is very loud fan noise, also under load or when gaming. On top of that, we also occasionally noticed electronic noises."
"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 16 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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