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Updated February 26, 2024·
When choosing between the ASUS ROG Strix G18 and the Lenovo Legion 9i, consider that the ASUS is generally less expensive and offers strong performance for gaming and demanding tasks, but it may be heavier and bulkier, making it less portable. The Lenovo Legion 9i, while possibly pricier, typically provides a balance of high performance with a more premium build and may have finer features like a better screen or audio, along with being easier to carry around. Battery life can vary, but gaming laptops like these often prioritize power over long battery life, so don't expect extended unplugged use with either. Consider what's more important — saving money and gaining raw performance with the ASUS, or investing in a more refined experience that's easier to take on the go with the Lenovo. 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 G18 (2024)
- Good battery life
Advantages of the Lenovo Legion 9i
- Best in class for engineering and design
- Excellent for gaming and AI
- Best in class overall display quality
- Very good overall build quality
- Excellent keyboard
Key differences
Screen Quality
8.7
9.7
18.0in
SIZE
16.0in
2560 x 1600
RESOLUTION
3200 x 2000
IPS
DISPLAY TECHNOLOGY
Mini LED
240Hz
REFRESH RATE
165Hz
422.0 nits
BRIGHTNESS
682.0 nits
The Lenovo Legion 9i has a better screen than the ASUS ROG Strix G18 for general use, gaming and AI, and engineering and design.
The ASUS ROG Strix G18 boasts vivid colors and sharp images due to its high resolution and bright display, which enhances the experience for general users and is beneficial for detail-oriented engineering work; however, its lower refresh rate may hinder smoothness in fast-paced 3D tasks. The Lenovo Legion 9i provides a superior color range covering DCI-P3 and Adobe RGB spectrums, essential for precision in engineering and design applications, while also delivering crisp visuals for everyday use thanks to its high resolution and panel quality. But for gaming and 3D work where motion clarity is key, both laptops' screens fall short due to their lower refresh rates compared to models specialized in those fields.
Battery
8.0 Hours
3.0 Hours
The ASUS ROG Strix G18 has 8 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
Poor
Fair
18.0in
SIZE
16.0in
6.6 lbs
WEIGHT
5.6 lbs
1.0in
THICKNESS
1.0in
The Lenovo Legion 9i has only fair portability, while the ASUS ROG Strix G18 (2024) has poor 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 G18 (2024) has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$2,300
$3,420
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The ASUS ROG Strix G18 (2024) has a price of $2,300 and the Lenovo Legion 9i costs $3,420.
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Key similarities
General Use
8.7
8.4
2560 x 1600
RESOLUTION
3200 x 2000
IPS
DISPLAY TECHNOLOGY
Mini LED
422.0 nits
DISPLAY BRIGHTNESS
682.0 nits
8.0 Hours
BATTERY LIFE
3.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
9.0/10
5.6/10
PORTABILITY SCORE
6.3/10
The ASUS ROG Strix G18 (2024) and Lenovo Legion 9i are both very good for general use.
The ASUS ROG Strix G18 offers a strong CPU and substantial RAM, ensuring smooth multitasking and performance for demanding applications, combined with a high-quality screen which is ideal for both work and entertainment, but it's heavier which affects portability and usually has shorter battery life. On the other hand, the Lenovo Legion 9i also has robust processing power and plenty of memory to handle general use efficiently, with the advantage of being easier to carry around and offering longer battery life, though it might have a slightly less impressive screen compared to the ASUS.
Gaming and AI
8.7
9.2
8.9/10
OVERALL GPU SCORE
9.8/10
2560 x 1600
RESOLUTION
3200 x 2000
240Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.2/10
FAN NOISE SCORE
6.5/10
Although they have very similar scores, PerfectRec considers Lenovo Legion 9i to be excellent for gaming and AI, while the ASUS ROG Strix G18 (2024) is very good.
The ASUS ROG Strix G18 boasts a high-end GPU and fast screen refresh rate, making it ideal for immersive gaming and smooth 3D rendering. On the other hand, the Lenovo Legion 9i, while also having a solid GPU and a quick refresh rate, adds a slightly better CPU and superior screen quality, offering a balance that might be preferable for users who equally value game performance and visual fidelity.
Engineering and Design
9.2
9.6
9.9/10
OVERALL CPU SCORE
9.9/10
8.9/10
OVERALL GPU SCORE
9.8/10
32.0 GB
RAM
32.0 GB
Although they have very similar scores, PerfectRec considers Lenovo Legion 9i to be best in class for engineering and design, while the ASUS ROG Strix G18 (2024) is excellent.
The ASUS ROG Strix G18 packs a robust CPU, ample RAM, and a high-end GPU, delivering powerful performance for demanding engineering applications, along with a high-quality screen which is crucial for design precision. The Lenovo Legion 9i, whilst also excelling in performance with similar specs, offers a slightly more portable frame, a comfortable keyboard, and quieter operation, making it versatile for both work and occasional transport.
Content Creation
8.8
8.7
9.9/10
OVERALL CPU SCORE
9.9/10
2560 x 1600
RESOLUTION
3200 x 2000
32.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
Mini LED
The ASUS ROG Strix G18 (2024) and Lenovo Legion 9i are both very good for content creation.
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
8.5
8.3
9.9/10
OVERALL CPU SCORE
9.9/10
32.0 GB
RAM
32.0 GB
2560 x 1600
RESOLUTION
3200 x 2000
8.0/10
KEYBOARD QUALITY SCORE
9.0/10
The ASUS ROG Strix G18 (2024) and Lenovo Legion 9i are both very 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 ASUS ROG Strix G18 (2024) and the Lenovo Legion 9i compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Strix G18 (2024) | Lenovo Legion 9i |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,300 | $3,420 | ||
Release Date | |||
Release Date | January 1, 2024 | October 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 15.7'' x 11.6'' x 1.06'' | 14.1'' x 10.9'' x 1.01'' | |
Weight | |||
Weight | 6.61 lbs | 5.64 lbs | |
Width | |||
Width | 15.71" | 14.08" | |
Depth | |||
Depth | 11.57" | 10.93" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-14900HX | Intel i9-13980HX | |
RAM | |||
RAM | 32 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 8 Hours | 3 Hours | |
Battery Capacity | |||
Battery Capacity | 90 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 18" | 16" | |
Display Technology | |||
Display Technology | IPS | Mini LED | |
Resolution | |||
Resolution | 2560 x 1600 | 3200 x 2000 | |
Refresh Rate | |||
Refresh Rate | 240Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 422 nits | 682 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.8/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 5.7/10 | 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 | 8/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.6/10 | 9.8/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | Yes | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 2 | |
USB-C ports | |||
USB-C ports | 2 | 3 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | 4 | |
Shopping
ASUS ROG Strix G18 (2024)
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Dig into reviews and images
NotebookCheck
Florian Glaser | March 2023
"With the ROG Strix G18, Asus has made an almost consistently good debut in the still quite new 18-inch laptop segment. The base unit case shows a few signs of weakness in the area of stability and is something which has an effect on the perceived quality of the input devices (the chassis tends to rattle a bit). Nevertheless, thanks to generous port features (incl. Thunderbolt 4), a striking design, and extensive lighting (keyboard, LED strip on the front), gamers get a fitting gaming platform."
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 G18 (2024) 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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