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·
The ASUS ROG Zephyrus M16 offers a better GPU and higher resolution display with a taller aspect ratio, which is excellent for multitasking and creative tasks where screen real estate is important. However, the MSI Stealth GS66 features a faster screen refresh rate useful for gaming and may be preferable if you prioritize a smoother visual experience. The MSI also has slightly better battery life, which could be advantageous if you often work on the go. Both laptops are similar in weight and offer high-quality keyboards and build, but the ASUS may come at a somewhat lower cost. If you're looking for high performance in 3D rendering or machine learning, the ASUS has the edge, while for ultra-fast gaming displays, the MSI might be more appealing. 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 M16
- Very good for gaming and AI
- Very good for content creation
- Excellent overall display quality
- Best in class speakers
Advantages of the MSI Stealth GS66
- Very good keyboard
Key differences
Gaming and AI
8.5
7.8
8.9/10
OVERALL GPU SCORE
7.8/10
2560 x 1600
RESOLUTION
1920 x 1080
240Hz
REFRESH RATE
360Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
6.2/10
FAN NOISE SCORE
7.5/10
The ASUS ROG Zephyrus M16 is very good 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
8.8
8.2
9.5/10
OVERALL CPU SCORE
9.1/10
8.9/10
OVERALL GPU SCORE
7.8/10
16.0 GB
RAM
16.0 GB
The ASUS ROG Zephyrus M16 and MSI Stealth GS66 are both very good for engineering and design, though the ASUS ROG Zephyrus M16 is somewhat better.
The ASUS ROG Zephyrus M16 outshines the MSI Stealth GS66 in engineering and design use primarily because it features a more advanced CPU and a more powerful GPU, which are very important for such tasks. On top of that, it offers a higher screen resolution and greater color accuracy, enhancing visual detail and fidelity which is crucial for design work, though the MSI maintains a competitive edge with slightly superior portability and quieter operating noise.
Screen Quality
9.0
8.1
16.0in
SIZE
15.6in
2560 x 1600
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
240Hz
REFRESH RATE
360Hz
627.0 nits
BRIGHTNESS
280.0 nits
The ASUS ROG Zephyrus M16 has a better screen than the MSI Stealth GS66 for general use, gaming and AI, engineering and design, software development, and content creation.
The ASUS ROG Zephyrus M16 offers a high resolution and bright display, catering well to day-to-day tasks and detailed design work where color accuracy is critical. However, its lower refresh rate makes it less ideal for 3D gaming, where smoother motion is more desirable. Conversely, the MSI Stealth GS66, while also providing a good resolution and decent brightness for everyday and professional use, falls short in gaming experiences due to a refresh rate that doesn't match the higher standards demanded by fast-paced games.
Battery
4.5 Hours
5.5 Hours
The ASUS ROG Zephyrus M16 has 4.5 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.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Key similarities
General Use
7.9
7.7
2560 x 1600
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
627.0 nits
DISPLAY BRIGHTNESS
280.0 nits
4.5 Hours
BATTERY LIFE
5.5 Hours
6.5/10
KEYBOARD QUALITY SCORE
8.5/10
7.3/10
PORTABILITY SCORE
7.5/10
The ASUS ROG Zephyrus M16 and MSI Stealth GS66 are both good for general use.
The ASUS ROG Zephyrus M16 ensures excellent general use with its high-resolution screen, powerful CPU, plenty of RAM, and solid battery life while maintaining a balance between performance and portability. On the other hand, the MSI Stealth GS66 also caters well to general use, providing ample RAM, a high-quality keyboard, and longer battery life, making it slightly more appealing for extended use away from power outlets with a trade-off in screen resolution and CPU performance.
Content Creation
8.2
7.7
9.5/10
OVERALL CPU SCORE
9.1/10
2560 x 1600
RESOLUTION
1920 x 1080
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
Although they have very similar scores, PerfectRec considers ASUS ROG Zephyrus M16 to be 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
7.7
7.5
9.5/10
OVERALL CPU SCORE
9.1/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
1920 x 1080
6.5/10
KEYBOARD QUALITY SCORE
8.5/10
The ASUS ROG Zephyrus M16 and MSI Stealth GS66 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.
Portability
Good
Good
16.0in
SIZE
15.6in
4.6 lbs
WEIGHT
4.6 lbs
0.8in
THICKNESS
0.7in
The MSI Stealth GS66 and ASUS ROG Zephyrus M16 both have good portability.
The most portable laptops are small, thin, and light.
Build Quality
8.5
8.0
The ASUS ROG Zephyrus M16 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.
Cost
$1,842
$1,799
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The ASUS ROG Zephyrus M16 has a price of $1,842 and the MSI Stealth GS66 costs $1,799.
Give feedback
We’re constantly working to improve.
How the ASUS ROG Zephyrus M16 and the MSI Stealth GS66 compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Zephyrus M16 | MSI Stealth GS66 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,842 | $1,799 | ||
Release Date | |||
Release Date | March 1, 2023 | April 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.7'' x 0.83'' | 14.2'' x 9.7'' x 0.71'' | |
Weight | |||
Weight | 4.63 lbs | 4.63 lbs | |
Width | |||
Width | 13.98" | 14.17" | |
Depth | |||
Depth | 9.69" | 9.65" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-13900H | Intel i7-12700H | |
RAM | |||
RAM | 16 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 | 4.5 Hours | 5.5 Hours | |
Battery Capacity | |||
Battery Capacity | 90 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 16" | 15.6" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1600 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 240Hz | 360Hz | |
Display Brightness | |||
Display Brightness | 627 nits | 280 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 8/10 | |
Portability Score | |||
Portability Score | 7.3/10 | 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 | 6.3/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.5/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.5/10 | 8/10 | |
Webcam | |||
Webcam | 1080p | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | No | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
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 | 4 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | 4 | |
Shopping
ASUS ROG Zephyrus M16
See more
Dig into reviews and images
NotebookCheck
Christian Hintze | March 2023
"The ASUS ROG Zephyrus M16 is not yet as optimised as its predecessor. Compared to the previous gen, performance and efficiency have improved significantly. What's more, the wonderful, Mini-LED Nebula display is a contender for the main highlight and almost manages to put the CPU and GPU in the shade. We already found its predecessor to be a well-rounded and well-optimised gaming machine. Generally, but not unequivocally, that also applies to the new Asus M16. Similar to most of the current, new laptops, we are dealing with a double generational leap in terms of the CPU and GPU. However, this change doesn't always run smoothly."
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 ASUS ROG Zephyrus M16 or the MSI Stealth GS66
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 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 ASUS ROG Zephyrus M16 vs. Dell XPS 13 Plus
VS
Compare ASUS ROG Zephyrus M16 vs. ASUS ROG Zephyrus G14
VS
Compare ASUS ROG Zephyrus M16 vs. ASUS ROG Zephyrus G15
VS
Compare MSI Stealth GS66 vs. Lenovo Legion Pro 5i (2024)
VS
Compare MSI Stealth GS66 vs. Eluktronics RP-15
VS
Compare MSI Stealth GS66 vs. MSI Vector GP76
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
113,595
Recommendations made
24,613
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
