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 ZenBook Pro Duo 15 is less expensive and offers a larger storage capacity, more RAM, and better screen resolution with an OLED display that's ideal for color-sensitive work, but it's heavier and has a lower portability score. In contrast, the MSI Stealth GS66 is more expensive and comes with less storage and RAM, but it has a higher refresh rate display suitable for gaming and a slightly better portability score due to its lower weight. If budget and top-notch screen quality for professional creative tasks are your priorities, go with the ASUS. However, if you're looking for something lighter with a focus on gaming performance, consider the MSI. 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 ZenBook Pro Duo 15
- Very good for general use
- Excellent for engineering and design
- Very good for software development
- Very good for content creation
- Good battery life
- Best in class speakers
Advantages of the MSI Stealth GS66
- Very good overall build quality
- Very good keyboard
Key differences
General Use
8.5
7.7
3840 x 2160
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
332.0 nits
DISPLAY BRIGHTNESS
280.0 nits
7.0 Hours
BATTERY LIFE
5.5 Hours
7.5/10
KEYBOARD QUALITY SCORE
8.5/10
7.1/10
PORTABILITY SCORE
7.5/10
The ASUS ZenBook Pro Duo 15 is very good for general use, while the MSI Stealth GS66 is good.
The ASUS ZenBook Pro Duo 15 shines for general use with its vibrant OLED screen, larger RAM and high-resolution touchscreen which are key for multitasking and media consumption; however, it's heavier and has a shorter battery life, affecting portability. On the other hand, the MSI Stealth GS66, while still good for general use, offers less RAM and lower screen resolution but compensates with significantly lighter build and slightly longer battery life, making it more travel-friendly.
Engineering and Design
9.0
8.2
9.2/10
OVERALL CPU SCORE
9.1/10
7.8/10
OVERALL GPU SCORE
7.8/10
32.0 GB
RAM
16.0 GB
The ASUS ZenBook Pro Duo 15 is excellent for engineering and design, while the MSI Stealth GS66 is very good.
The ASUS ZenBook Pro Duo 15 stands out for its high-resolution OLED touchscreen, ideal for design work that benefits from vibrant colors and high contrast, and it's powered by a robust Intel i9 processor and RTX 3070 Ti GPU, complemented by substantial RAM, making it extremely capable for engineering tasks. Meanwhile, the MSI Stealth GS66 includes a high-refresh-rate IPS screen and similar GPU, paired with an Intel i7 processor and ample RAM, which along with its lighter weight and quieter operation make it a strong contender for both engineering and gaming on the go.
Content Creation
8.7
7.7
9.2/10
OVERALL CPU SCORE
9.1/10
3840 x 2160
RESOLUTION
1920 x 1080
32.0 GB
RAM
16.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The ASUS ZenBook Pro Duo 15 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
9.2/10
OVERALL CPU SCORE
9.1/10
32.0 GB
RAM
16.0 GB
3840 x 2160
RESOLUTION
1920 x 1080
7.5/10
KEYBOARD QUALITY SCORE
8.5/10
The ASUS ZenBook Pro Duo 15 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
8.3
8.1
15.6in
SIZE
15.6in
3840 x 2160
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
360Hz
332.0 nits
BRIGHTNESS
280.0 nits
The ASUS Zenbook Pro Duo 15 has a better screen than the MSI Stealth GS66 for general use, engineering and design, software development, and content creation, while the MSI Stealth GS66 has a better screen for gaming and AI.
When considering the ASUS ZenBook Pro Duo 15, its superior resolution and brightness, along with its high-quality panel type, ensure crisp and vivid visuals for everyday tasks and professional design work, enhanced by its wide color gamut coverage which is crucial for precise color work in engineering and design. The MSI Stealth GS66 also offers a good quality display for daily activities and design applications due to its competent resolution and adequate color range, but neither the ASUS nor the MSI laptops excel in gaming and 3D tasks primarily because they lack high refresh rates, which are essential for smooth and responsive visuals in fast-paced gaming scenarios. Despite their strong performance in other areas, for gaming and 3D work, there are other models with displays better suited to cater to the need for fluid motion and rapid screen updates.
Battery
7.0 Hours
5.5 Hours
The ASUS Zenbook Pro Duo 15 has 7 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.
Cost
$2,000
$1,799
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The ASUS ZenBook Pro Duo 15 has a price of $2,000 and the MSI Stealth GS66 costs $1,799.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Key similarities
Gaming and AI
7.8
7.8
7.8/10
OVERALL GPU SCORE
7.8/10
3840 x 2160
RESOLUTION
1920 x 1080
60Hz
REFRESH RATE
360Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.7/10
FAN NOISE SCORE
7.5/10
The MSI Stealth GS66 and ASUS ZenBook Pro Duo 15 are both good for gaming and AI.
The ASUS ZenBook Pro Duo 15 offers superior screen quality with an OLED display and a higher resolution, which is great for 3D work and immersion in games, but it has a lower screen refresh rate than the MSI Stealth GS66, which might be less optimal for fast-paced gaming where a high refresh rate is beneficial. Both laptops feature the powerful Nvidia RTX 3070 Ti graphics card, making them well-suited for gaming and graphic-intensive tasks; however, the high-resolution display on the ASUS could lead to slightly lower frame rates in some scenarios.
Portability
Good
Good
15.6in
SIZE
15.6in
5.1 lbs
WEIGHT
4.6 lbs
0.8in
THICKNESS
0.7in
The MSI Stealth GS66 and ASUS ZenBook Pro Duo 15 both have good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.6
8.0
Although they have very similar scores, PerfectRec considers MSI Stealth GS66 to have very good build quality, while the ASUS ZenBook Pro Duo 15 has 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 ASUS ZenBook Pro Duo 15 and the MSI Stealth GS66 compare to other laptops
Spec Comparison
 |  | |
| ASUS ZenBook Pro Duo 15 | MSI Stealth GS66 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,000 | $1,799 | ||
Release Date | |||
Release Date | February 1, 2023 | April 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 9.8'' x 0.85'' | 14.2'' x 9.7'' x 0.71'' | |
Weight | |||
Weight | 5.16 lbs | 4.63 lbs | |
Width | |||
Width | 14.17" | 14.17" | |
Depth | |||
Depth | 9.81" | 9.65" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-12900H | Intel i7-12700H | |
RAM | |||
RAM | 32 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7 Hours | 5.5 Hours | |
Battery Capacity | |||
Battery Capacity | 92 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 15.6" | |
Display Technology | |||
Display Technology | OLED | IPS | |
Resolution | |||
Resolution | 3840 x 2160 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 360Hz | |
Display Brightness | |||
Display Brightness | 332 nits | 280 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 8/10 | |
Portability Score | |||
Portability Score | 7.1/10 | 7.5/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.8/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 7.5/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.6/10 | 8/10 | |
Webcam | |||
Webcam | 720p | 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 | 1 | 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 ZenBook Pro Duo 15
See more
Dig into reviews and images
PCWorld
Jared Newman | August 2021
"Benchmarks aside, the Asus ZenBook Pro Duo is hard to compare with other PCs. Its closest competition may be a multi-monitor desktop, or a laptop with an attached travel monitor. The Pro Duo is more portable and versatile than either of those options, especially with the software tools Asus has thrown on top. For a certain niche of artists, media creators, and gamers, all that might add up to something special, even if it’s unattainable for the rest of us."
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 ZenBook Pro Duo 15 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 ZenBook Pro Duo 15 vs. ASUS ROG Zephyrus G16 (2024)
VS
Compare ASUS ZenBook Pro Duo 15 vs. ASUS ROG Strix Scar 15
VS
Compare ASUS ZenBook Pro Duo 15 vs. Gigabyte Aorus 17
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
116,295
Recommendations made
25,198
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
