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Updated January 10, 2024·
The Lenovo Legion Slim 7 is less expensive and offers a higher resolution screen with better colors, which is great for general use and has sufficient power for gaming and engineering tasks; however, the MSI Stealth GS66, despite being more costly and having a lower resolution display, is a more powerful machine suitable for intensive gaming, machine learning, and 3D rendering with a higher refresh rate screen that is beneficial for fast-paced games. The Lenovo has better battery life, but it's slightly heavier; if portability is a concern, the MSI might be a preferable option. Both have ample connectivity options and features suitable for both work and play, so consider what's more important to you: screen quality and battery life or raw performance power and refresh rate for gaming. 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 Slim 7 16"
- Very good for general use
- Very good for gaming and AI
- Very good for software development
- Very good for content creation
- Good battery life
Advantages of the MSI Stealth GS66
- Very good overall build quality
Key differences
General Use
8.2
7.7
2560 x 1600
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
502.0 nits
DISPLAY BRIGHTNESS
280.0 nits
7.0 Hours
BATTERY LIFE
5.5 Hours
8.5/10
KEYBOARD QUALITY SCORE
8.5/10
7.5/10
PORTABILITY SCORE
7.5/10
The Lenovo Legion Slim 7 16" is very good for general use, while the MSI Stealth GS66 is good.
The Lenovo Legion Slim 7 16" offers a more vivid visual experience and should handle daily tasks very smoothly, thanks to its higher screen resolution and powerful processor, while its lighter weight and longer battery life make it highly portable and convenient for general use. In contrast, the MSI Stealth GS66 has a larger storage capacity and superior speakers, but it tends to have a shorter battery life and is slightly heavier, which might make it less ideal for on-the-go usage.
Content Creation
8.3
7.7
9.1/10
OVERALL CPU SCORE
9.1/10
2560 x 1600
RESOLUTION
1920 x 1080
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Legion Slim 7 16" 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
8.0
7.5
9.1/10
OVERALL CPU SCORE
9.1/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
1920 x 1080
8.5/10
KEYBOARD QUALITY SCORE
8.5/10
The Lenovo Legion Slim 7 16" 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
8.7
8.1
16.0in
SIZE
15.6in
2560 x 1600
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
240Hz
REFRESH RATE
360Hz
502.0 nits
BRIGHTNESS
280.0 nits
The Lenovo Legion Slim 7 has a better screen than the MSI Stealth GS66 for general use, gaming and AI, engineering and design, software development, and content creation.
For general use, the Lenovo Legion Slim 7 16" offers a combination of resolution, panel type, and brightness that enhances the viewing experience with clear, vibrant images, making it very suitable for everyday tasks like web browsing, document editing, and video streaming. In the realm of engineering and design, its display excels with wide color gamuts ensuring more accurate color reproduction, which is essential for tasks demanding color precision like photo editing and CAD work. However, for gaming and 3D applications, the lower refresh rate of the Lenovo makes it less desirable compared to displays with higher refresh rates that provide smoother motion and a better overall experience for fast-paced visuals.
Battery
7.0 Hours
5.5 Hours
The Lenovo Legion Slim 7 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
$1,344
$1,799
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The Lenovo Legion Slim 7 16" has a price of $1,344 and the MSI Stealth GS66 costs $1,799.
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Key similarities
Gaming and AI
8.2
7.8
8.3/10
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
7.5/10
FAN NOISE SCORE
7.5/10
Although they have very similar scores, PerfectRec considers Lenovo Legion Slim 7 16" to be very good for gaming and AI, while the MSI Stealth GS66 is good.
The Lenovo Legion Slim 7 stands out for gaming and 3D applications because of its powerful Nvidia RTX 4060 GPU and high screen refresh rate of 240Hz, which enhance detailed graphics and smooth gameplay. In comparison, the MSI Stealth GS66, while still excellent for gaming with its Nvidia RTX 3070 Ti GPU, offers an even higher screen refresh rate of 360Hz, making it exceptional for fast-paced gaming, although the difference may be more noticeable in highly competitive scenarios.
Engineering and Design
8.6
8.2
9.1/10
OVERALL CPU SCORE
9.1/10
8.3/10
OVERALL GPU SCORE
7.8/10
16.0 GB
RAM
16.0 GB
The Lenovo Legion Slim 7 16" and MSI Stealth GS66 are both very good for engineering and design.
The Lenovo Legion Slim 7, with an AMD Ryzen CPU and Nvidia RTX GPU, provides high processing and graphical power ideal for engineering and design work, complemented by a larger, high-resolution 16-inch screen. Meanwhile, the MSI Stealth GS66, despite a slightly smaller screen and different CPU/GPU combo (Intel and Nvidia RTX 3070 Ti), still offers solid performance capabilities but has a higher refresh rate display which may be valued for certain design tasks.
Portability
Good
Good
16.0in
SIZE
15.6in
4.4 lbs
WEIGHT
4.6 lbs
0.6in
THICKNESS
0.7in
The Lenovo Legion Slim 7 16" and MSI Stealth GS66 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 Lenovo Legion Slim 7 16" has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
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We’re constantly working to improve.
How the Lenovo Legion Slim 7 16" and the MSI Stealth GS66 compare to other laptops
Spec Comparison
 |  | |
| Lenovo Legion Slim 7 16" | MSI Stealth GS66 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,344 | $1,799 | ||
Release Date | |||
Release Date | May 1, 2023 | April 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.1'' x 10.2'' x 0.69'' | 14.2'' x 9.7'' x 0.71'' | |
Weight | |||
Weight | 4.4 lbs | 4.63 lbs | |
Width | |||
Width | 14.08" | 14.17" | |
Depth | |||
Depth | 10.21" | 9.65" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 7 7840HS | Intel i7-12700H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 1 | 2 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7 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 | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1600 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 240Hz | 360Hz | |
Display Brightness | |||
Display Brightness | 502 nits | 280 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 8/10 | |
Portability Score | |||
Portability Score | 7.5/10 | 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 | 7.5/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 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 | 3 | 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 | N/A | 4 | |
Shopping
Lenovo Legion Slim 7 16"
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Dig into reviews and images
NotebookCheck
Benjamin Herzig | November 2022
"The Lenovo Legion Slim 7 is a slim Legion notebook that is just as excellent with Nvidia & Intel. However, the Legion Slim 7i slightly sullied by lacklustre battery life. You get a slim aluminium chassis, great input devices, decent port selection, fast high-quality WQXGA display and great performance. Supporting Thunderbolt 4 is one advantage of the Intel/Nvidia model tested in this review. Moreover, this variant has slightly higher CPU performance as well as better GPU performance in certain applications (e.g. CUDA-based apps). The Lenovo Legion S7i is thin, premium and performant – but less efficient than its AMD counterpart."
MSI Stealth GS66
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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 Slim 7 16" 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.
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