A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
If you require top-of-the-line performance for tasks like 3D modelling, advanced machine learning, or intensive gaming, the Lenovo Legion 9i, with its stronger processor and more powerful graphics card, stands out, especially considering its high-quality display and memory capacity. However, it's heavier and bulkier, making it less portable, and it tends to be pricier. The MSI Stealth GS66 is a more portable choice with a high refresh rate display, better suited for fast-paced games, it costs less, and its battery life allows for longer typical usage. However, its performance for highly demanding tasks won’t match the Lenovo, given its less powerful CPU and GPU and lower RAM and storage. 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 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
- Best in class speakers
- Excellent keyboard
Advantages of the MSI Stealth GS66
- Good portability
Key differences
General Use
8.4
7.7
3200 x 2000
RESOLUTION
1920 x 1080
Mini LED
DISPLAY TECHNOLOGY
IPS
682.0 nits
DISPLAY BRIGHTNESS
280.0 nits
3.0 Hours
BATTERY LIFE
5.5 Hours
9.0/10
KEYBOARD QUALITY SCORE
8.5/10
6.3/10
PORTABILITY SCORE
7.5/10
The Lenovo Legion 9i is very good for general use, while the MSI Stealth GS66 is good.
The Lenovo Legion 9i excels in general use due to its higher RAM capacity which enables better multitasking, and a better-quality mini LED screen which offers higher resolution and color accuracy, enhancing user experience for a wide range of tasks. Although the MSI Stealth GS66 provides respectable general-use performance with decent screen quality and sufficient RAM, it falls short in portability and battery life when compared to the Legion 9i, making the latter more suitable for users who prioritize mobility without compromising on display and performance.
Gaming and AI
9.2
7.8
9.8/10
OVERALL GPU SCORE
7.8/10
3200 x 2000
RESOLUTION
1920 x 1080
165Hz
REFRESH RATE
360Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
6.5/10
FAN NOISE SCORE
7.5/10
The Lenovo Legion 9i is excellent for gaming and AI, while the MSI Stealth GS66 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
9.6
8.2
9.9/10
OVERALL CPU SCORE
9.1/10
9.8/10
OVERALL GPU SCORE
7.8/10
32.0 GB
RAM
16.0 GB
The Lenovo Legion 9i is best in class for engineering and design, while the MSI Stealth GS66 is very good.
The Lenovo Legion 9i stands out for engineering and design tasks due to its higher-end CPU and GPU, along with a superior amount of RAM and a high-quality Mini LED screen, which offer exceptional processing power, advanced graphics performance, and excellent color accuracy and contrast for detailed work. The MSI Stealth GS66, while also a strong performer with a capable CPU and GPU, offers less RAM and a standard IPS screen, which may limit performance and visual precision compared to the Legion 9i, but is lighter and thus more portable.
Content Creation
8.7
7.7
9.9/10
OVERALL CPU SCORE
9.1/10
3200 x 2000
RESOLUTION
1920 x 1080
32.0 GB
RAM
16.0 GB
Mini LED
DISPLAY TECHNOLOGY
IPS
The Lenovo Legion 9i is very good for content creation, while the MSI Stealth GS66 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
8.3
7.5
9.9/10
OVERALL CPU SCORE
9.1/10
32.0 GB
RAM
16.0 GB
3200 x 2000
RESOLUTION
1920 x 1080
9.0/10
KEYBOARD QUALITY SCORE
8.5/10
The Lenovo Legion 9i is very good for software development, while the MSI Stealth GS66 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
9.7
8.1
16.0in
SIZE
15.6in
3200 x 2000
RESOLUTION
1920 x 1080
Mini LED
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
360Hz
682.0 nits
BRIGHTNESS
280.0 nits
The Lenovo Legion 9i has a better screen than the MSI Stealth GS66 for general use, gaming and AI, engineering and design, software development, and content creation.
The Lenovo Legion 9i stands out in general use and engineering due to its high-resolution display that offers crisp visuals, along with superior brightness for comfortable viewing, complemented by wide color gamut coverage that ensures accurate color reproduction crucial for design work. The MSI Stealth GS66, while providing good screen quality for both general use and engineering tasks, might not have the same level of brightness or color range, making it a slightly less optimal choice for professionals who rely on these features. For gaming and 3D applications, however, both laptops fall short as they lack the high refresh rates needed for smooth motion rendering, which is a key factor for an immersive experience in fast-paced games and 3D simulations.
Battery
3.0 Hours
5.5 Hours
The Lenovo Legion 9i has 3 hours of battery life. The MSI Stealth GS66 has 5.5 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
Fair
Good
16.0in
SIZE
15.6in
5.6 lbs
WEIGHT
4.6 lbs
1.0in
THICKNESS
0.7in
The MSI Stealth GS66 has good portability, while the Lenovo Legion 9i has only fair portability.
The most portable laptops are small, thin, and light.
Cost
$3,420
$1,000
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The Lenovo Legion 9i has a price of $3,420 and the MSI Stealth GS66 costs $1,000.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Key similarities
Build Quality
8.5
8.0
The Lenovo Legion 9i and MSI Stealth GS66 both have very good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Give feedback
We’re constantly working to improve.
How the Lenovo Legion 9i and the MSI Stealth GS66 compare to other laptops
Spec Comparison
 |  | |
| Lenovo Legion 9i | MSI Stealth GS66 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$3,420 | $1,000 | ||
Release Date | |||
Release Date | October 1, 2023 | April 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.1'' x 10.9'' x 1.01'' | 14.2'' x 9.7'' x 0.71'' | |
Weight | |||
Weight | 5.64 lbs | 4.63 lbs | |
Width | |||
Width | 14.08" | 14.17" | |
Depth | |||
Depth | 10.93" | 9.65" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-13980HX | Intel i7-12700H | |
RAM | |||
RAM | 32 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 3 Hours | 5.5 Hours | |
Battery Capacity | |||
Battery Capacity | 99.9 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 16" | 15.6" | |
Display Technology | |||
Display Technology | Mini LED | IPS | |
Resolution | |||
Resolution | 3200 x 2000 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 360Hz | |
Display Brightness | |||
Display Brightness | 682 nits | 280 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 8/10 | |
Portability Score | |||
Portability Score | 6.4/10 | 7.5/10 | |
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 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 9/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.8/10 | 8/10 | |
Webcam | |||
Webcam | 1080p | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | Yes | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 2 | |
USB-C ports | |||
USB-C ports | 3 | 3 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 4 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | 4 | |
Shopping
Lenovo Legion 9i
See more
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."
MSI Stealth GS66
See more
Dig into reviews and images
NotebookCheck
Florian Glaser | February 2022
"The MSI Stealth GS66 is powerful enough for QHD. The Core i7-12700H and the GeForce RTX 3070 Ti found in the 12UGS model that we tested run all modern games smoothly in the native QHD resolution. The 15-inch display is very fast with its 240 Hz refresh rate, and it also offers a great color space (almost 100% DCI-P3) on top of that, which should please gamers as well as content creators, although we would have still wished for a higher brightness. Case, input devices, and connectivity (Thunderbolt 4) are at a good level. However, among other things, the GS66 loses points due to the high temperature development in 3D mode and its poor webcam."
Get a great deal on the Lenovo Legion 9i or the MSI Stealth GS66
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 MSI
MSI, also known as Micro-Star International, is a Taiwanese technology corporation. MSI is known for their wide range of gaming devices. Their series include the entry-level Cyborg/Thin and Sword/Katana series, the mid-range Bravo/Delta and Crosshair/Pulse series, and their high-end Vector, Raider, Stealth, and Titan GT series. At every performance level, MSI offers a variety of devices with varying balances between performance, battery life, weight, and price, making them a solid option to consider at every price point.
Give feedback
We're constantly perfecting our model
Laptop guides you might be interested in
More comparisons for you
Compare Lenovo Legion 9i vs. Apple MacBook Pro 16 (Late 2023)
VS
Compare Lenovo Legion 9i vs. Asus ROG Strix Scar 17 X3D
VS
Compare Lenovo Legion 9i vs. ASUS ROG Zephyrus G16 (2024)
VS
Compare MSI Stealth GS66 vs. LG Ultra 16
VS
Compare MSI Stealth GS66 vs. Dell Inspiron 16 5625
VS
Compare MSI Stealth GS66 vs. ASUS TUF Gaming F17
VS
FAQs
FAQs about laptops
Why trust us
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.
By the numbers
380
Laptops evaluated
48,640
Laptops stats compiled
13
Proprietary Laptops ratings developed
97,395
Recommendations made
21,103
Consumer hours saved
About the laptop team
Joe Golden, Ph.D
CEO and Laptops Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Craig Russell
Laptops Expert
Craig is a UK-based laptops expert. Craig works in IT, where he recommends and supports laptops and PCs for clients and has been recommending laptops on Reddit for five years.
Featured in
