The ASUS ROG Strix G18 is better suited for intensive tasks such as gaming, 3D rendering, or engineering due to its high-end processor and graphics card, but it's heavier and less portable. It also has a larger and more vibrant display, which is good for design and entertainment. On the other hand, the Lenovo Legion Slim 5 is more affordable, offers reasonable performance for everyday use and lighter gaming, and is lighter and easier to carry around. Its battery life is slightly better, which could be beneficial if you spend a lot of time away from power outlets. Keep in mind that the ASUS has a larger screen size, which might not be as convenient for portability as the Lenovo. 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 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 Legion Slim 5
The Lenovo Legion Slim 5 has no clear advantages over the ASUS ROG Strix G18.
Key differences
General Use
8.3/10
7.6/10
2560 x 1600
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
422.0 nits
DISPLAY BRIGHTNESS
300.0 nits
8.0 Hours
BATTERY LIFE
7.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
8.5/10
5.6/10
PORTABILITY SCORE
6.7/10
The ASUS ROG Strix G18 is very good for general use, while the Lenovo Legion Slim 5 is good.
The ASUS ROG Strix G18 offers a more powerful CPU and superior screen quality, which makes it very good for general use, whereas the Lenovo Legion Slim 5 is more portable and has a slightly longer battery life, making it a good option for general use as well. However, the ASUS's heavier weight and poorer portability score could be a drawback for users who need to travel with their laptop frequently.
Gaming and AI
8.7/10
7.7/10
8.9/10
OVERALL GPU SCORE
8.4/10
2560 x 1600
RESOLUTION
1920 x 1200
240Hz
REFRESH RATE
144Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.2/10
FAN NOISE SCORE
6.5/10
The ASUS ROG Strix G18 is very good for gaming and AI, while the Lenovo Legion Slim 5 is good.
The ASUS ROG Strix G18, with its higher-tier Nvidia RTX 4070 and a screen refresh rate of 240, delivers superior performance and smoother visuals for gaming and 3D tasks, compared to the Lenovo Legion Slim 5, which is fitted with the Nvidia RTX 4060 and has a lower refresh rate of 144, making it less fluid in fast-paced scenes. While both have high-quality IPS displays, the ASUS stands out with its higher resolution and exceptionally bright screen, enhancing the visual experience, at the expense of being larger and heavier which affects portability.
Engineering and Design
8.9/10
8.0/10
9.9/10
OVERALL CPU SCORE
8.3/10
8.9/10
OVERALL GPU SCORE
8.4/10
16.0 GB
RAM
16.0 GB
The ASUS ROG Strix G18 and Lenovo Legion Slim 5 are both very good for engineering and design, though the ASUS ROG Strix G18 is somewhat better.
The ASUS ROG Strix G18 boasts a high-end Intel i9 CPU with an Nvidia RTX 4070 GPU and a vivid display with elevated color accuracy and brightness, while the Lenovo Legion Slim 5 offers portability and competitive performance with an AMD Ryzen 5 CPU and Nvidia RTX 4060 GPU, albeit with a less brilliant screen. For engineering and design, the ASUS provides a powerful edge in processing and superior screen quality, whereas the Lenovo balances a thinner and lighter form with sufficient capability for demanding tasks.
Content Creation
8.6/10
7.5/10
9.9/10
OVERALL CPU SCORE
8.3/10
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 Legion Slim 5 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
8.3/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
1920 x 1200
8.0/10
KEYBOARD QUALITY SCORE
8.5/10
The ASUS ROG Strix G18 is very good for software development, while the Lenovo Legion Slim 5 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
7.2/10
18.0in
SIZE
16.0in
2560 x 1600
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
240Hz
REFRESH RATE
144Hz
422.0 nits
BRIGHTNESS
300.0 nits
The ASUS ROG Strix G18 has a better screen than the Lenovo Legion Slim 5 for general use, gaming and AI, engineering and design, software development, and content creation.
The ASUS ROG Strix G18 offers a high-resolution display with excellent brightness and color accuracy, which benefits general use and engineering tasks that require true color representation like DCI-P3 and Adobe RGB, but the lower refresh rate detracts from gaming and 3D applications where smooth motion is crucial. The Lenovo Legion Slim 5 provides a balanced display with sufficient resolution and brightness making it suitable for everyday tasks and work that involves design and engineering, though it also lacks the high refresh rate desired for immersive and fluid gaming or 3D modeling experiences. Both laptops, while having the qualities necessary for sharp and vivid visuals in professional contexts, do not meet the high refresh rate standard preferred by gamers and professionals working with fast-moving graphics.
Battery
8.0 Hours
7.0 Hours
The ASUS ROG Strix G18 has 8 hours of battery life. The Lenovo Legion Slim 5 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
Fair
18.0in
SIZE
16.0in
6.6 lbs
WEIGHT
5.2 lbs
1.0in
THICKNESS
0.9in
The Lenovo Legion Slim 5 has only fair portability, while the ASUS ROG Strix G18 has poor portability.
The most portable laptops are small, thin, and light.
Cost
$2,299
$1,000
$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 Legion Slim 5 costs $1,000.
"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 Lenovo Legion Slim 5 Gen 8 acknowledges that a gaming laptop doesn’t have to be as thick as possible and can still ensure adequate cooling when the muscles need flexing. To this end, in the Slim 5 Gen 8, it finds a neat balance of refined, trimmed-down design that still lets its internals cruise (even above their max power ratings). Lenovo then added in some high-end build quality with an altogether excellent keyboard that’s useful for both work and play."
Get a great deal on the ASUS ROG Strix G18 or the Lenovo Legion Slim 5
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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