If cost is a primary concern and you're seeking good performance, the ASUS ROG Zephyrus G15 will likely serve you well at a lower price point. However, if you're after the highest performance possible and are willing to invest more, the Lenovo Legion 9i typically offers top-tier features that might justify the extra expense. Keep in mind that higher-priced laptops often offer better build quality, more advanced screen technology, or greater power, which could be vital if you're into heavy gaming, content creation, or professional-level tasks. On the flip side, the ASUS might have a better balance of cost to performance, making it suitable for day-to-day use and moderate gaming or creative work. Remember to consider the weight and battery life as well, particularly if you plan to carry the laptop around; more robust performance can sometimes mean heavier weight and 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 ASUS ROG Zephyrus G15
Good portability
Good battery life
Advantages of the Lenovo Legion 9i
Very good for general use
Best in class for engineering and design
Excellent for gaming and AI
Very good for software development
Best in class overall display quality
Excellent keyboard
Key differences
General Use
7.9/10
8.4/10
2560 x 1440
RESOLUTION
3200 x 2000
IPS
DISPLAY TECHNOLOGY
Mini LED
309.0 nits
DISPLAY BRIGHTNESS
682.0 nits
9.5 Hours
BATTERY LIFE
3.0 Hours
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.5/10
PORTABILITY SCORE
6.3/10
The Lenovo Legion 9i is very good for general use, while the ASUS ROG Zephyrus G15 is good.
The ASUS ROG Zephyrus G15 offers a balance of power with an AMD Ryzen CPU and Nvidia RTX GPU, high screen quality with good color coverage and high resolution, and excellent battery life combined with a light frame, making it a strong candidate for general use that requires portability and longevity on a charge.
Gaming and AI
7.5/10
9.2/10
7.4/10
OVERALL GPU SCORE
9.8/10
2560 x 1440
RESOLUTION
3200 x 2000
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 9i is excellent for gaming and AI, while the ASUS ROG Zephyrus G15 is good.
PerfectRec’s Gaming and AI Score strongly emphasizes graphics processing capability, while also taking into account other factors that impact suitability for gaming and AI work.
Engineering and Design
8.0/10
9.6/10
7.5/10
OVERALL CPU SCORE
9.9/10
7.4/10
OVERALL GPU SCORE
9.8/10
16.0 GB
RAM
32.0 GB
The Lenovo Legion 9i is best in class for engineering and design, while the ASUS ROG Zephyrus G15 is very good.
The ASUS ROG Zephyrus G15, with its AMD Ryzen 9 and RTX 3070, offers solid performance for engineering and design, boasting good portability and excellent keyboard quality; however, the Lenovo Legion 9i takes the lead with a more powerful Intel i9-13980HX and RTX 4080 GPU, alongside a higher-quality Mini LED screen, making it more suitable for intensive tasks despite being less portable.
Content Creation
8.0/10
8.7/10
7.5/10
OVERALL CPU SCORE
9.9/10
2560 x 1440
RESOLUTION
3200 x 2000
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
Mini LED
The Lenovo Legion 9i and ASUS ROG Zephyrus G15 are both very good for content creation, though the Lenovo Legion 9i 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
7.4/10
8.3/10
7.5/10
OVERALL CPU SCORE
9.9/10
16.0 GB
RAM
32.0 GB
2560 x 1440
RESOLUTION
3200 x 2000
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Lenovo Legion 9i is very good for software development, while the ASUS ROG Zephyrus G15 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
7.9/10
9.7/10
15.6in
SIZE
16.0in
2560 x 1440
RESOLUTION
3200 x 2000
IPS
DISPLAY TECHNOLOGY
Mini LED
165Hz
REFRESH RATE
165Hz
309.0 nits
BRIGHTNESS
682.0 nits
The Lenovo Legion 9i has a better screen than the ASUS ROG Zephyrus G15 for general use, gaming and AI, engineering and design, content creation, and software development.
When considering general use, the Lenovo Legion 9i stands out because of its high-resolution display and brightness, offering clarity and vibrant visuals which enhance everyday tasks from browsing to video streaming. For engineering and design, the Legion 9i again takes the lead with broader color coverage, which ensures that professionals in these fields can work with a wide spectrum of colors for accurate rendering and image editing. However, for gaming and 3D applications, both laptops fall short due to lower refresh rates, which can limit the smoothness of motion and gameplay experience, despite their sufficient resolution and panel quality.
Battery
9.5 Hours
3.0 Hours
The ASUS ROG Zephyrus G15 has 9.5 hours of battery life. The Lenovo Legion 9i has 3 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
Fair
15.6in
SIZE
16.0in
4.1 lbs
WEIGHT
5.6 lbs
0.7in
THICKNESS
1.0in
The ASUS ROG Zephyrus G15 has good portability, while the Lenovo Legion 9i has only fair portability.
The most portable laptops are small, thin, and light.
Cost
$1,637
$3,420
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The ASUS ROG Zephyrus G15 has a price of $1,637 and the Lenovo Legion 9i costs $3,420.
"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."
"The Lenovo Legion 9i is meant as a top-end flagship showcase for enthusiasts, and on that, it delivers. You'll find flashier designs in this price tier—Razer’s all-metal build in a similarly sized laptop like the Blade 16, or monstrous 18-inch machines—but this is a well-thought-out laptop. The chassis is trim for a 16-inch powerhouse, the lid is unique, and bespoke liquid cooling takes performance to the next level."
Get a great deal on the ASUS ROG Zephyrus G15 or the Lenovo Legion 9i
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.
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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