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Updated January 10, 2024·
If you prioritize long battery life and a lighter device for portability, the ASUS ROG Zephyrus G15 may suit you better. On the other hand, the Lenovo Legion 7 offers a slightly larger screen and may perform well in color-intensive tasks due to its higher screen brightness and contrast, though it has a shorter battery life and is heavier, affecting its portability. Both laptops offer similar performance for general use, 3D/machine learning, gaming, and engineering tasks; therefore, your choice should depend on whether you value battery life and portability over screen quality and size. 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 ASUS ROG Zephyrus G15
- Very good for content creation
- Best in class speakers
Advantages of the Lenovo Legion 7
- Very good overall display quality
- Excellent keyboard
Key differences
Screen Quality
7.9
8.3
15.6in
SIZE
16.0in
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
165Hz
309.0 nits
BRIGHTNESS
469.0 nits
The ASUS ROG Zephyrus G15 has a better screen than the Lenovo Legion 7 for content creation, while the Lenovo Legion 7 has a better screen for general use, and gaming and AI.
For general use, both the ASUS ROG Zephyrus G15 and the Lenovo Legion 7 offer crisp images and bright visuals thanks to their high-resolution screens and panel types, which provide wide viewing angles and consistent colors. Engineers and designers will appreciate the extensive color gamut coverage on both laptops, ensuring accurate color reproduction for detailed projects. However, gamers and 3D artists may find the screens lacking due to lower refresh rates, which result in less fluid motion and slower response times during fast-paced scenes.
Battery
9.5 Hours
6.5 Hours
The ASUS ROG Zephyrus G15 has 9.5 hours of battery life. The Lenovo Legion 7 has 6.5 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
Good
15.6in
SIZE
16.0in
4.1 lbs
WEIGHT
5.5 lbs
0.7in
THICKNESS
0.8in
The ASUS ROG Zephyrus G15 and Lenovo Legion 7 both have good portability, though the ASUS ROG Zephyrus G15 has somewhat better portability.
The most portable laptops are small, thin, and light.
Cost
$2,000
$1,500
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The ASUS ROG Zephyrus G15 has a price of $2,000 and the Lenovo Legion 7 costs $1,500.
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Key similarities
General Use
7.9
7.9
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
309.0 nits
DISPLAY BRIGHTNESS
469.0 nits
9.5 Hours
BATTERY LIFE
6.5 Hours
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.5/10
PORTABILITY SCORE
7.0/10
The Lenovo Legion 7 and ASUS ROG Zephyrus G15 are both good for general use.
The ASUS ROG Zephyrus G15 is favored for general use due to its higher battery life paired with a light-weight build and solid screen quality, making it excellent for portability without sacrificing performance. The Lenovo Legion 7, while offering a competitive CPU and ample RAM, falls slightly behind on battery life and portability but excels with a higher screen resolution and superior heat management, which may appeal to those who prioritize extended use and visual detail over mobility.
Gaming and AI
7.5
7.8
7.4/10
OVERALL GPU SCORE
8.4/10
2560 x 1440
RESOLUTION
2560 x 1600
165Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
6.5/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion 7 and ASUS ROG Zephyrus G15 are both good for gaming and AI.
The ASUS ROG Zephyrus G15 and the Lenovo Legion 7 are both suitable for gaming and 3D tasks primarily because they come with Nvidia RTX 3070 GPUs and offer high screen refresh rates of 165Hz, favoring smooth visuals in fast-paced games and rendering work. The Zephyrus G15 has a slightly more powerful CPU which may offer an edge in CPU-bound tasks, while the Legion 7 boasts a higher resolution and screen quality, potentially providing crisper images and better color accuracy.
Engineering and Design
8.0
8.2
7.5/10
OVERALL CPU SCORE
7.4/10
7.4/10
OVERALL GPU SCORE
8.4/10
16.0 GB
RAM
16.0 GB
The Lenovo Legion 7 and ASUS ROG Zephyrus G15 are both very good for engineering and design.
The ASUS ROG Zephyrus G15 and Lenovo Legion 7 are both suited for engineering and design due to their powerful CPUs (the ASUS has a Ryzen 9 and the Lenovo a Ryzen 7), robust GPUs (both have an RTX 3070), and substantial RAM. The ASUS stands out with a slightly better CPU, while the Lenovo features a higher resolution screen, but both offer high-quality displays and the necessary power to handle demanding software used in engineering and design tasks.
Content Creation
8.0
7.9
7.5/10
OVERALL CPU SCORE
7.4/10
2560 x 1440
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
Although they have very similar scores, PerfectRec considers ASUS ROG Zephyrus G15 to be very good for content creation, while the Lenovo Legion 7 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
7.6
7.5/10
OVERALL CPU SCORE
7.4/10
16.0 GB
RAM
16.0 GB
2560 x 1440
RESOLUTION
2560 x 1600
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Lenovo Legion 7 and ASUS ROG Zephyrus G15 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.
Build Quality
8.5
8.5
The ASUS ROG Zephyrus G15 and Lenovo Legion 7 both have very good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
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How the ASUS ROG Zephyrus G15 and the Lenovo Legion 7 compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Zephyrus G15 | Lenovo Legion 7 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,000 | $1,500 | ||
Release Date | |||
Release Date | May 1, 2021 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.6'' x 0.78'' | 14'' x 10.3'' x 0.86'' | |
Weight | |||
Weight | 4.19 lbs | 5.5 lbs | |
Width | |||
Width | 13.98" | 14.01" | |
Depth | |||
Depth | 9.57" | 10.27" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 5900HS | AMD Ryzen 7 5800H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 4 | |
RAM Slots | |||
RAM Slots | 1 | 2 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 9.5 Hours | 6.5 Hours | |
Battery Capacity | |||
Battery Capacity | 90 Wh | 80 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1440 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 309 nits | 469 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.5/10 | 7/10 | |
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 | 6.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.5/10 | 8.8/10 | |
Webcam | |||
Webcam | No Webcam | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 3 | |
USB-C ports | |||
USB-C ports | 2 | 3 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
ASUS ROG Zephyrus G15
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Dig into reviews and images
NotebookCheck
Florian Glaser | February 2021
"As long as you're aware of the fact that the GeForce RTX 3080 laptop version can only unfold its potential to a limited extent due to Asus's low TDP setting and that it can be slower than a fast RTX 3070 laptop, the ROG Zephyrus G15 GA503Q cuts a fine figure. One of the biggest highlights turns out to be the WQHD panel, since it attracts customers with 165 Hz, relatively fast response times, FreeSync, and good color-space coverage. Other selling points are the surprisingly rich sound, the long battery life, and the sleek design. In terms of looks, the white edition stands out nicely from the competition."
Lenovo Legion 7
See more
Dig into reviews and images
NotebookCheck
Andreas Osthoff | September 2022
"The Lenovo Legion 7 is a fast 16-inch gamer with 165 Hz display. The new Lenovo Legion 7 is a very good gaming notebook that, despite its comparatively compact compact 16-inch case, does not have to do without the most powerful components. Thanks to good cooling, no compromises are made in terms of performance. Both the Core i9-12900HX and the GeForce RTX 3080 Ti perform at a very high level."
Get a great deal on the ASUS ROG Zephyrus G15 or the Lenovo Legion 7
About ASUS
ASUS, a Taiwanese electronics brand, is one of the largest personal computer vendor by market share. The majority of their laptops are targeted towards personal use or gaming. Their most popular product lines include the budget-friendly VivoBook, more premium ZenBook, and their TUF and ROG gaming laptops, the latter of which has a reputation for excellent gaming performance.
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.
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