The ASUS ROG Strix G18, being more expensive, offers superior performance for 3D work, machine learning, and gaming due to its high-end CPU and GPU. Its larger screen and higher refresh rate benefit fast-moving visuals, but it comes at the expense of lesser portability and shorter battery life. On the other hand, the Lenovo IdeaPad Slim 5i costs less and is significantly lighter and thinner, making it highly portable and offering a longer battery life for general use. Its performance is adequate for everyday tasks, but it's less suited for intensive graphics or engineering work due to its lower-specs CPU and integrated GPU. 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
Very good for general use
Very good for engineering and design
Very good for gaming and AI
Very good for software development
Very good for content creation
Very good overall display quality
Best in class speakers
Advantages of the Lenovo IdeaPad Slim 5i
Good portability
Key differences
General Use
8.3/10
7.5/10
2560 x 1600
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
422.0 nits
DISPLAY BRIGHTNESS
315.0 nits
8.0 Hours
BATTERY LIFE
8.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
8.0/10
5.6/10
PORTABILITY SCORE
7.6/10
The ASUS ROG Strix G18 is very good for general use, while the Lenovo IdeaPad Slim 5i is good.
The ASUS ROG Strix G18 excels in general use due to its high-end CPU and RAM, superior screen quality, and effective heat management but has poor portability and average battery life; meanwhile, the Lenovo IdeaPad Slim 5i offers good general-use performance with a lighter design for better portability and comparable battery life, yet steps down with a mid-tier CPU and less impressive screen quality and speaker performance. Both laptops have ample RAM for multitasking and high-quality keyboards, but the ASUS is better suited for those prioritizing performance and the Lenovo for users seeking lightweight convenience.
Gaming and AI
8.7/10
6.3/10
8.9/10
OVERALL GPU SCORE
3.7/10
2560 x 1600
RESOLUTION
1920 x 1200
240Hz
REFRESH RATE
60Hz
Yes
SUPPORTS DLSS
No
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
7.2/10
FAN NOISE SCORE
7.5/10
The ASUS ROG Strix G18 is very good for gaming and AI, while the Lenovo IdeaPad Slim 5i is only fair.
The ASUS ROG Strix G18 is better for gaming and 3D applications because it features a powerful Nvidia RTX 4070 graphics card and a high screen refresh rate of 240Hz, providing smoother visual performance and better image rendering. In contrast, the Lenovo IdeaPad Slim 5i is equipped with an integrated Intel Iris Xe graphics card and a standard refresh rate of 60Hz, which offers less graphical processing power and slower screen updates, making it less suited for intensive gaming and 3D tasks.
Engineering and Design
8.9/10
7.0/10
9.9/10
OVERALL CPU SCORE
6.9/10
8.9/10
OVERALL GPU SCORE
3.7/10
16.0 GB
RAM
16.0 GB
The ASUS ROG Strix G18 is very good for engineering and design, while the Lenovo IdeaPad Slim 5i is good.
The ASUS ROG Strix G18 boasts a high-end CPU, substantial RAM, a powerful dedicated GPU, and superior screen quality which make it very suitable for demanding engineering and design tasks, but it is less portable and has a louder operating noise. In contrast, the Lenovo IdeaPad Slim 5i, while good for such tasks, has a mid-range CPU and integrated graphics, making it less capable for intensive applications, but it is lighter, quieter, and offers better portability.
Content Creation
8.6/10
7.4/10
9.9/10
OVERALL CPU SCORE
6.9/10
2560 x 1600
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The ASUS ROG Strix G18 is very good for content creation, while the Lenovo IdeaPad Slim 5i 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
8.1/10
7.4/10
9.9/10
OVERALL CPU SCORE
6.9/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
1920 x 1200
8.0/10
KEYBOARD QUALITY SCORE
8.0/10
The ASUS ROG Strix G18 is very good for software development, while the Lenovo IdeaPad Slim 5i 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
8.7/10
6.4/10
18.0in
SIZE
16.0in
2560 x 1600
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
240Hz
REFRESH RATE
60Hz
422.0 nits
BRIGHTNESS
315.0 nits
The ASUS ROG Strix G18 has a better screen than the Lenovo IdeaPad Slim 5i for general use, gaming and AI, engineering and design, software development, and content creation.
If you prioritize a clear and vivid display for tasks like browsing and document editing, the ASUS ROG Strix G18 stands out thanks to its higher resolution and brightness, which enhance image sharpness and visibility in various lighting conditions. For professionals in engineering and design, the same laptop’s wider color gamut coverage ensures more accurate color representation, crucial for detail-oriented work. However, for gaming and 3D applications, the lower refresh rate of the ASUS could lead to less smooth visuals compared to laptops specifically built for gaming, which could diminish the experience in fast-paced games.
Portability
Poor
Good
18.0in
SIZE
16.0in
6.6 lbs
WEIGHT
4.1 lbs
1.0in
THICKNESS
0.7in
The Lenovo IdeaPad Slim 5i has good portability, while the ASUS ROG Strix G18 has poor portability.
The most portable laptops are small, thin, and light.
Cost
$2,299
$828
$0
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
The ASUS ROG Strix G18 has a price of $2,299 and the Lenovo IdeaPad Slim 5i costs $828.
"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."
"The device is made for average work loads and if your work has a lot to do with online browsing, using apps that are not power-hungry and streaming videos. The looks are really good and the device in itself is not a heavy one. And with Intel 11th-gen Core processor, you might sail through most of your work without complaints."
Get a great deal on the ASUS ROG Strix G18 or the Lenovo IdeaPad Slim 5i
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.
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.
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