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The PerfectRec laptop team Learn more
Updated January 10, 2024·
The Lenovo Slim Pro 9i presents a balance for those needing a portable laptop with strong general use and engineering capabilities, featuring a Mini LED touchscreen, efficient heat management, and commendable battery life, at an upper midrange price. Whereas the MSI Stealth GS77, for a premium price, offers more power for 3D, machine learning, and intensive gaming with a larger screen and a more powerful GPU, but it is heavier, which could affect portability. Both laptops have similar RAM and storage, but the GS77 has higher performance scores for more demanding tasks and an RGB backlit keyboard, catering to those prioritizing performance over portability and battery life. 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 Slim Pro 9i
- Best in class overall display quality
- Good portability
Advantages of the MSI Stealth GS77
- The MSI Stealth GS77 has no clear advantages over the Lenovo Slim Pro 9i.
Key differences
Screen Quality
9.6
8.3
14.5in
SIZE
17.3in
3072 x 1920
RESOLUTION
2560 x 1440
Mini LED
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
240Hz
618.0 nits
BRIGHTNESS
305.0 nits
The Lenovo Slim Pro 9i has a better screen than the MSI Stealth GS77 for general use, gaming and AI, engineering and design, and software development.
The Lenovo Slim Pro 9i likely boasts a display with high resolution and brightness, providing crisp and vivid visuals for day-to-day tasks and professional design work where precise color representation is crucial. However, its screen is not optimized for gaming or 3D applications due to a lower refresh rate, which is less capable of delivering the smooth motion that these uses require. The MSI Stealth GS77, while also providing a high-quality screen for general and engineering use, falls short for gaming and 3D because its refresh rate doesn't meet the fast-paced demands of these activities, despite having decent resolution and panel technology.
Portability
Good
Fair
14.5in
SIZE
17.3in
3.7 lbs
WEIGHT
6.1 lbs
0.8in
THICKNESS
0.7in
The Lenovo Slim Pro 9i has good portability, while the MSI Stealth GS77 has only fair portability.
The most portable laptops are small, thin, and light.
Cost
$1,500
$2,499
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The Lenovo Slim Pro 9i has a price of $1,500 and the MSI Stealth GS77 costs $2,499.
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Key similarities
General Use
8.5
8.4
3072 x 1920
RESOLUTION
2560 x 1440
Mini LED
DISPLAY TECHNOLOGY
IPS
618.0 nits
DISPLAY BRIGHTNESS
305.0 nits
6.0 Hours
BATTERY LIFE
6.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
8.5/10
7.6/10
PORTABILITY SCORE
6.4/10
The Lenovo Slim Pro 9i and MSI Stealth GS77 are both very good for general use.
The Lenovo Slim Pro 9i is commended for general use due to its high-quality screen, good battery life, and portability, which make it suitable for a range of everyday tasks, while the MSI Stealth GS77's stronger CPU, superior RAM, and better speaker quality also render it very good for general use, though its larger size and heavier weight may be less convenient for on-the-go activities.
Gaming and AI
7.6
7.9
6.9/10
OVERALL GPU SCORE
7.8/10
3072 x 1920
RESOLUTION
2560 x 1440
165Hz
REFRESH RATE
240Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
No
8.0/10
FAN NOISE SCORE
7.5/10
The MSI Stealth GS77 and Lenovo Slim Pro 9i are both good for gaming and AI.
The MSI Stealth GS77 is considered very good for gaming and 3D because it sports a more powerful Nvidia RTX 3070 Ti graphics card and has a higher screen refresh rate of 240 Hz, compared to the Lenovo Slim Pro 9i, which includes an Nvidia RTX 4050 GPU and a 165 Hz refresh rate. While the Lenovo has its strengths, for pure gaming and 3D performance, the superior GPU and faster screen refresh rate of the MSI make it a more suitable option.
Engineering and Design
8.9
8.7
9.0/10
OVERALL CPU SCORE
9.1/10
6.9/10
OVERALL GPU SCORE
7.8/10
32.0 GB
RAM
32.0 GB
The Lenovo Slim Pro 9i and MSI Stealth GS77 are both very good for engineering and design.
The Lenovo Slim Pro 9i excels in engineering and design due to its high-resolution Mini LED display, suitable for detailed work and color accuracy, and a capable CPU and GPU combination for demanding tasks. Meanwhile, the MSI Stealth GS77 offers a larger screen and more potent GPU, advantageous for graphics-intensive tasks, but its bigger size makes it less portable compared to the Slim Pro 9i.
Content Creation
8.5
8.3
9.0/10
OVERALL CPU SCORE
9.1/10
3072 x 1920
RESOLUTION
2560 x 1440
32.0 GB
RAM
32.0 GB
Mini LED
DISPLAY TECHNOLOGY
IPS
The Lenovo Slim Pro 9i and MSI Stealth GS77 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
8.3
8.1
9.0/10
OVERALL CPU SCORE
9.1/10
32.0 GB
RAM
32.0 GB
3072 x 1920
RESOLUTION
2560 x 1440
8.0/10
KEYBOARD QUALITY SCORE
8.5/10
The Lenovo Slim Pro 9i and MSI Stealth GS77 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.
Battery
6.0 Hours
6.0 Hours
The Lenovo Slim Pro 9i has 6 hours of battery life. The MSI Stealth GS77 has 6 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.
Build Quality
8.0
8.0
The Lenovo Slim Pro 9i and MSI Stealth GS77 both have very good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
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How the Lenovo Slim Pro 9i and the MSI Stealth GS77 compare to other laptops
Spec Comparison
 |  | |
| Lenovo Slim Pro 9i | MSI Stealth GS77 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,500 | $2,499 | ||
Release Date | |||
Release Date | February 1, 2023 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 12.9'' x 9.6'' x 0.85'' | 15.7'' x 11.2'' x 0.79'' | |
Weight | |||
Weight | 3.7 lbs | 6.17 lbs | |
Width | |||
Width | 12.9" | 15.65" | |
Depth | |||
Depth | 9.64" | 11.16" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-13705H | Intel i7-12700H | |
RAM | |||
RAM | 32 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6 Hours | 6 Hours | |
Battery Capacity | |||
Battery Capacity | 75 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14.5" | 17.3" | |
Display Technology | |||
Display Technology | Mini LED | IPS | |
Resolution | |||
Resolution | 3072 x 1920 | 2560 x 1440 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 618 nits | 305 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8/10 | 8/10 | |
Portability Score | |||
Portability Score | 7.7/10 | 6.5/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 8/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8/10 | 8/10 | |
Webcam | |||
Webcam | 1080p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 2 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | 4 | |
Shopping
Lenovo Slim Pro 9i
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Dig into reviews and images
PCWorld
Matthew S. Smith | August 2023
"The Lenovo Slim Pro 9i is an impressive laptop with a brilliant Mini-LED display, a powerful 100-watt version of Nvidia RTX 4050 graphics, and excellent connectivity. Having run the Cinebench benchmark again, we were impressed with the CPU performance. That makes the Slim Pro 9i is an easy recommendation, especially for those who care about GPU and CPU performance. It’s also a fantastic choice if you frequently view HDR movies and games on your laptop."
MSI Stealth GS77
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NotebookCheck
Allen Ngo | April 2022
"The MSI Stealth GS77 is better than the GS76... mostly. The GS77 is a few steps forward and a few steps back from the GS76. Improvements are numerous including the stronger and more rigid skeleton, higher resolution webcam, larger clickpad, easier serviceability, relatively similar battery runtimes, newer display options, and higher performance at about the same TDP and TGP levels as before. CPU performance is better than expected even when compared to other laptops with Core i7 or Core i9 processors. The newer model feels more substantial than the outgoing one for higher quality impressions as well."
Get a great deal on the Lenovo Slim Pro 9i or the MSI Stealth GS77
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.
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