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 Strix G18 offers better performance for intensive gaming, 3D rendering, and engineering tasks due to its high-end processor and GPU, but comes at a higher price and is less portable due to its larger size and heavier weight. The Lenovo Legion Slim 7 16" provides nearly comparable performance, and although it may not excel as much in highly demanding tasks, it is more affordable, lighter, and offers better portability with a longer battery life, which could be an advantage for general use and if you plan to carry it around frequently. Both laptops have similar screen size and quality, supporting vivid colors and fast motion, but the Lenovo has a slightly higher screen brightness and better contrast ratio, potentially giving a slight edge in visual clarity. If you prioritize portability and value, and can accept modest compromises on peak performance, the Lenovo might be a more suitable choice. If peak performance and a focus on gaming and demanding tasks are critical, and you are willing to invest more and manage with less portability, the ASUS could be the way to go. 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 Strix G18
- Best in class speakers
Advantages of the Lenovo Legion Slim 7 16"
- Good portability
Key differences
Gaming and AI
8.7
8.2
8.9/10
OVERALL GPU SCORE
8.3/10
2560 x 1600
RESOLUTION
2560 x 1600
240Hz
REFRESH RATE
240Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.2/10
FAN NOISE SCORE
7.5/10
The ASUS ROG Strix G18 and Lenovo Legion Slim 7 16" are both very good for gaming and AI, though the ASUS ROG Strix G18 is somewhat better.
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.
Screen Quality
8.7
8.7
18.0in
SIZE
16.0in
2560 x 1600
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
240Hz
REFRESH RATE
240Hz
422.0 nits
BRIGHTNESS
502.0 nits
The ASUS ROG Strix G18 has a better screen than the Lenovo Legion Slim 7 for content creation.
For general use, both the ASUS ROG Strix G18 and Lenovo Legion Slim 7 have screens with high resolution and brightness, making them clear and vibrant for daily tasks like browsing and video streaming. In engineering and design, their ability to display a wide range of colors is crucial for accurately rendering visual content, which is well-served by their excellent color gamut coverage. However, when it comes to gaming and 3D applications, the lower refresh rates of these laptops may lead to less fluid visuals, which can be a disadvantage for fast-paced games or high-speed 3D simulations.
Battery
8.0 Hours
7.0 Hours
The ASUS ROG Strix G18 has 8 hours of battery life. The Lenovo Legion Slim 7 has 7 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
Poor
Good
18.0in
SIZE
16.0in
6.6 lbs
WEIGHT
4.4 lbs
1.0in
THICKNESS
0.6in
The Lenovo Legion Slim 7 16" has good portability, while the ASUS ROG Strix G18 has poor portability.
The most portable laptops are small, thin, and light.
Cost
$1,900
$1,344
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The ASUS ROG Strix G18 has a price of $1,900 and the Lenovo Legion Slim 7 16" costs $1,344.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Key similarities
General Use
8.3
8.2
2560 x 1600
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
422.0 nits
DISPLAY BRIGHTNESS
502.0 nits
8.0 Hours
BATTERY LIFE
7.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
8.5/10
5.6/10
PORTABILITY SCORE
7.5/10
The ASUS ROG Strix G18 and Lenovo Legion Slim 7 16" are both very good for general use.
The ASUS ROG Strix G18 and Lenovo Legion Slim 7 16" both have high-quality CPUs and RAM, ensuring smooth performance for general use. The Strix G18 provides a large screen and top-tier graphics making it less portable, while the Legion Slim 7 prioritizes a thinner design and lighter weight, enhancing portability but with a slightly less powerful graphics card.
Engineering and Design
8.9
8.6
9.9/10
OVERALL CPU SCORE
9.1/10
8.9/10
OVERALL GPU SCORE
8.3/10
16.0 GB
RAM
16.0 GB
The ASUS ROG Strix G18 and Lenovo Legion Slim 7 16" are both very good for engineering and design.
PerfectRec’s Engineering and Design Score takes into account the many different features of the laptop that make it more or less suitable for graphic design and 3D rendering work.
Content Creation
8.6
8.3
9.9/10
OVERALL CPU SCORE
9.1/10
2560 x 1600
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The ASUS ROG Strix G18 and Lenovo Legion Slim 7 16" 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
8.1
8.0
9.9/10
OVERALL CPU SCORE
9.1/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
2560 x 1600
8.0/10
KEYBOARD QUALITY SCORE
8.5/10
The ASUS ROG Strix G18 and Lenovo Legion Slim 7 16" 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.
Build Quality
7.8
7.6
The ASUS ROG Strix G18 and Lenovo Legion Slim 7 16" both have 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 ROG Strix G18 and the Lenovo Legion Slim 7 16" compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Strix G18 | Lenovo Legion Slim 7 16" |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,900 | $1,344 | ||
Release Date | |||
Release Date | April 1, 2023 | May 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 15.7'' x 11.6'' x 1.06'' | 14.1'' x 10.2'' x 0.69'' | |
Weight | |||
Weight | 6.61 lbs | 4.4 lbs | |
Width | |||
Width | 15.71" | 14.08" | |
Depth | |||
Depth | 11.57" | 10.21" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-13980HX | AMD Ryzen 7 7840HS | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 1 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 8 Hours | 7 Hours | |
Battery Capacity | |||
Battery Capacity | 90 Wh | 99.9 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 18" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1600 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 240Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 422 nits | 502 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.8/10 | 7.6/10 | |
Portability Score | |||
Portability Score | 5.7/10 | 7.5/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.3/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.6/10 | 8/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | Yes | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 3 | |
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 | N/A | |
Shopping
ASUS ROG Strix G18
See more
Dig into reviews and images
NotebookCheck
Florian Glaser | March 2023
"With the ROG Strix G18, Asus has made an almost consistently good debut in the still quite new 18-inch laptop segment. The base unit case shows a few signs of weakness in the area of stability and is something which has an effect on the perceived quality of the input devices (the chassis tends to rattle a bit). Nevertheless, thanks to generous port features (incl. Thunderbolt 4), a striking design, and extensive lighting (keyboard, LED strip on the front), gamers get a fitting gaming platform."
Lenovo Legion Slim 7 16"
See more
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."
Get a great deal on the ASUS ROG Strix G18 or the Lenovo Legion Slim 7 16"
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 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.
Give feedback
We're constantly perfecting our model
Laptop guides you might be interested in
More comparisons for you
Compare ASUS ROG Strix G18 vs. ASUS ROG Flow Z13
VS
Compare ASUS ROG Strix G18 vs. Razer Blade 14
VS
Compare ASUS ROG Strix G18 vs. ASUS ROG Zephyrus G16 (2024)
VS
Compare Lenovo Legion Slim 7 16" vs. ASUS Vivobook 16X
VS
Compare Lenovo Legion Slim 7 16" vs. MSI Prestige 16 AI Evo
VS
Compare Lenovo Legion Slim 7 16" vs. Dell G15 5520
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
132,195
Recommendations made
28,643
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
