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Updated January 10, 2024·
The ASUS ROG Strix G15 is less expensive, offers solid general use and gaming performance, and has good portability, making it a sensible pick for budget-conscious users who still want decent capabilities for both work and play. In contrast, the Lenovo Legion 9i, while more expensive, provides top-tier performance for intensive tasks such as 3D rendering, machine learning, and engineering software, thanks to a more powerful processor and graphics unit. It also features a superior display with higher resolution and brightness, but has less battery life and is heavier, which could impact its ease of portability. Both have ample storage and high-quality builds, but the Lenovo's additional RAM doubles the multitasking potential and could be beneficial for power users. 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 Strix G15
- Good portability
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
- Very good for content creation
- Best in class overall display quality
- Very good overall build quality
- Best in class speakers
- Excellent keyboard
Key differences
General Use
7.7
8.4
1920 x 1080
RESOLUTION
3200 x 2000
IPS
DISPLAY TECHNOLOGY
Mini LED
284.0 nits
DISPLAY BRIGHTNESS
682.0 nits
5.5 Hours
BATTERY LIFE
3.0 Hours
7.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.1/10
PORTABILITY SCORE
6.3/10
The Lenovo Legion 9i is very good for general use, while the ASUS ROG Strix G15 is good.
The Lenovo Legion 9i is rated higher for general use primarily because of its excellent CPU and RAM, combined with a high-quality screen, longer battery life, and portability compared to the ASUS ROG Strix G15 which, while still good for general purposes, falls slightly short in these very important aspects. Additionally, the Legion 9i offers somewhat better storage, keyboard, speaker quality, and manages operating noise and heat more effectively than the ASUS ROG Strix G15, making it very good for general use.
Gaming and AI
7.0
9.2
5.6/10
OVERALL GPU SCORE
9.8/10
1920 x 1080
RESOLUTION
3200 x 2000
144Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.2/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion 9i is excellent for gaming and AI, while the ASUS ROG Strix 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
7.6
9.6
7.8/10
OVERALL CPU SCORE
9.9/10
5.6/10
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 Strix G15 is good.
The Lenovo Legion 9i stands out for engineering and design use due to its higher-end CPU and GPU, double the RAM, and a superior screen with a higher resolution and brightness, which enhance performance and detail in complex tasks. In comparison, the ASUS ROG Strix G15 has less powerful components and a lower quality display but offers better portability and less operating noise, which could be more convenient for on-the-go use.
Content Creation
7.7
8.7
7.8/10
OVERALL CPU SCORE
9.9/10
1920 x 1080
RESOLUTION
3200 x 2000
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
Mini LED
The Lenovo Legion 9i is very good for content creation, while the ASUS ROG Strix G15 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
7.2
8.3
7.8/10
OVERALL CPU SCORE
9.9/10
16.0 GB
RAM
32.0 GB
1920 x 1080
RESOLUTION
3200 x 2000
7.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Lenovo Legion 9i is very good for software development, while the ASUS ROG Strix 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
7.1
9.7
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
3200 x 2000
IPS
DISPLAY TECHNOLOGY
Mini LED
144Hz
REFRESH RATE
165Hz
284.0 nits
BRIGHTNESS
682.0 nits
The Lenovo Legion 9i has a better screen than the ASUS ROG Strix G15 for general use, gaming and AI, engineering and design, content creation, and software development.
The ASUS ROG Strix G15 and Lenovo Legion 9i both have screens with high resolution and brightness, making them excellent for general use as they provide clear and vivid displays for everyday tasks. For engineering and design, the Legion 9i stands out with superior color accuracy and wider color gamuts, ensuring that professionals can see precise hues and gradients as they work. However, for gaming and 3D applications where a high refresh rate is crucial for smooth motion, both laptops may not be optimal due to their focus on other screen qualities, thus not meeting the demands for fast-paced visuals.
Battery
5.5 Hours
3.0 Hours
The ASUS ROG Strix G15 has 5.5 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
4.6 lbs
WEIGHT
5.6 lbs
0.9in
THICKNESS
1.0in
The ASUS ROG Strix G15 has good portability, while the Lenovo Legion 9i has only fair portability.
The most portable laptops are small, thin, and light.
Build Quality
7.8
8.5
The Lenovo Legion 9i has very good build quality, while the ASUS ROG Strix G15 has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$1,249
$3,420
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The ASUS ROG Strix G15 has a price of $1,249 and the Lenovo Legion 9i costs $3,420.
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How the ASUS ROG Strix G15 and the Lenovo Legion 9i compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Strix G15 | Lenovo Legion 9i |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,249 | $3,420 | ||
Release Date | |||
Release Date | May 1, 2021 | October 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 13.9'' x 10.2'' x 0.92'' | 14.1'' x 10.9'' x 1.01'' | |
Weight | |||
Weight | 4.63 lbs | 5.64 lbs | |
Width | |||
Width | 13.94" | 14.08" | |
Depth | |||
Depth | 10.2" | 10.93" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 5900HX | Intel i9-13980HX | |
RAM | |||
RAM | 16 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 5.5 Hours | 3 Hours | |
Battery Capacity | |||
Battery Capacity | 56 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | IPS | Mini LED | |
Resolution | |||
Resolution | 1920 x 1080 | 3200 x 2000 | |
Refresh Rate | |||
Refresh Rate | 144Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 284 nits | 682 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.8/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.1/10 | 6.4/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.3/10 | 6.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 7.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7.5/10 | 9.8/10 | |
Webcam | |||
Webcam | No Webcam | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 3 | 2 | |
USB-C ports | |||
USB-C ports | 1 | 3 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 2 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | N/A | 4 | |
Shopping
ASUS ROG Strix G15
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Dig into reviews and images
NotebookCheck
Marius Schell | February 2021
"The ASUS ROG Strix G15 is a successful high-performance 15-inch laptop. The Asus ROG Strix impresses with an elaborate design and fast hardware. The latter can unleash its potential well in the large 15-inch case and achieve a decent performance boost compared to the previous generation. Especially the stunning 300 Hz display as well as the RTX 3070 and its generous TDP give gamers their money's worth. Asus didn't neglect seemingly small details, either, such as the keyboard and the maintenance options. The ROG Strix G15 offers a lot of pure performance and excellent workmanship in a 15-inch format, but connectivity leaves something to be desired."
Lenovo Legion 9i
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Dig into reviews and images
PCMag
Matthew Buzzi | December 2023
"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 Strix 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.
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