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
Advantages of the ASUS ROG Strix G15
- The ASUS ROG Strix G15 has no clear advantages over the Lenovo Legion Slim 5 14".
Advantages of the Lenovo Legion Slim 5 14"
- Very good for engineering and design
- Very good overall display quality
- Good battery life
- Very good speakers
- Very good keyboard
Key differences
Gaming and AI
7.0
7.7
5.6/10
OVERALL GPU SCORE
7.3/10
1920 x 1080
RESOLUTION
2880 x 1800
144Hz
REFRESH RATE
120Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.2/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion Slim 5 14" and ASUS ROG Strix G15 are both good for gaming and AI, though the Lenovo Legion Slim 5 14" 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.
Engineering and Design
7.6
8.4
7.8/10
OVERALL CPU SCORE
9.1/10
5.6/10
OVERALL GPU SCORE
7.3/10
16.0 GB
RAM
16.0 GB
The Lenovo Legion Slim 5 14" is very good for engineering and design, while the ASUS ROG Strix G15 is good.
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.
Software Development
7.2
7.9
7.8/10
OVERALL CPU SCORE
9.1/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2880 x 1800
7.5/10
KEYBOARD QUALITY SCORE
8.5/10
The Lenovo Legion Slim 5 14" and ASUS ROG Strix G15 are both good for software development, though the Lenovo Legion Slim 5 14" is somewhat better.
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
7.1
8.5
15.6in
SIZE
14.5in
1920 x 1080
RESOLUTION
2880 x 1800
IPS
DISPLAY TECHNOLOGY
OLED
144Hz
REFRESH RATE
120Hz
284.0 nits
BRIGHTNESS
400.0 nits
The Lenovo Legion Slim 5 has a better screen than the ASUS ROG Strix G15 for general use, gaming and AI, engineering and design, content creation, and software development.
PerfectRec’s screen quality scores take into account various important factors that are relevant for different use cases.
Battery
5.5 Hours
7.0 Hours
The ASUS ROG Strix G15 has 5.5 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
Good
Good
15.6in
SIZE
14.5in
4.6 lbs
WEIGHT
3.8 lbs
0.9in
THICKNESS
0.8in
The Lenovo Legion Slim 5 14" and ASUS ROG Strix G15 both have good portability, though the Lenovo Legion Slim 5 14" has somewhat better portability.
The most portable laptops are small, thin, and light.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Key similarities
General Use
7.7
7.8
1920 x 1080
RESOLUTION
2880 x 1800
IPS
DISPLAY TECHNOLOGY
OLED
284.0 nits
DISPLAY BRIGHTNESS
400.0 nits
5.5 Hours
BATTERY LIFE
7.0 Hours
7.5/10
KEYBOARD QUALITY SCORE
8.5/10
7.1/10
PORTABILITY SCORE
7.6/10
The Lenovo Legion Slim 5 14" and ASUS ROG Strix G15 are both good for general use.
PerfectRec’s General Use Score takes into account the many different features of the laptop that make it more or less suitable for general productivity, web browsing, streaming, video calls, and running a wide variety of apps and programs.
Content Creation
7.7
7.9
7.8/10
OVERALL CPU SCORE
9.1/10
1920 x 1080
RESOLUTION
2880 x 1800
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
OLED
The Lenovo Legion Slim 5 14" and ASUS ROG Strix G15 are both 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.
Build Quality
7.8
7.8
The ASUS ROG Strix G15 and Lenovo Legion Slim 5 14" both have good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$1,249
$1,295
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
$2,000
The ASUS ROG Strix G15 has a price of $1,249 and the Lenovo Legion Slim 5 14" costs $1,295.
Give feedback
We’re constantly working to improve.
How the ASUS ROG Strix G15 and the Lenovo Legion Slim 5 14" compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Strix G15 | Lenovo Legion Slim 5 14" |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,249 | $1,295 | ||
Release Date | |||
Release Date | May 1, 2021 | February 1, 2024 | |
Overall Dimensions | |||
Overall Dimensions | 13.9'' x 10.2'' x 0.92'' | 12.9'' x 9.8'' x 0.82'' | |
Weight | |||
Weight | 4.63 lbs | 3.86 lbs | |
Width | |||
Width | 13.94" | 12.89" | |
Depth | |||
Depth | 10.2" | 9.81" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 5900HX | AMD Ryzen 7 7840HS | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 2 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 5.5 Hours | 7 Hours | |
Battery Capacity | |||
Battery Capacity | 56 Wh | 73.6 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 14.5" | |
Display Technology | |||
Display Technology | IPS | OLED | |
Resolution | |||
Resolution | 1920 x 1080 | 2880 x 1800 | |
Refresh Rate | |||
Refresh Rate | 144Hz | 120Hz | |
Display Brightness | |||
Display Brightness | 284 nits | 400 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.8/10 | 7.8/10 | |
Portability Score | |||
Portability Score | 7.1/10 | 7.6/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.3/10 | 6.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 7.5/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7.5/10 | 8/10 | |
Webcam | |||
Webcam | No Webcam | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 3 | 3 | |
USB-C ports | |||
USB-C ports | 1 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 2 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
ASUS ROG Strix G15
See more
Dig into reviews and images
NotebookCheck
Marius Schell | February 2021
"The ASUS ROG Strix G15 is a successful high-performance 15-inch laptop. The Asus ROG Strix impresses with an elaborate design and fast hardware. The latter can unleash its potential well in the large 15-inch case and achieve a decent performance boost compared to the previous generation. Especially the stunning 300 Hz display as well as the RTX 3070 and its generous TDP give gamers their money's worth. Asus didn't neglect seemingly small details, either, such as the keyboard and the maintenance options. The ROG Strix G15 offers a lot of pure performance and excellent workmanship in a 15-inch format, but connectivity leaves something to be desired."
Lenovo Legion Slim 5 14"
See more
Dig into reviews and images
PCMag
Mark Knapp | August 2023
"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 G15 or the Lenovo Legion Slim 5 14"
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 G15 vs. MSI Katana 15
VS
Compare ASUS ROG Strix G15 vs. Apple MacBook Pro 13 (2020)
VS
Compare ASUS ROG Strix G15 vs. ASUS Vivobook S 15 OLED
VS
Compare Lenovo Legion Slim 5 14" vs. ASUS ROG Zephyrus G14 (2024)
VS
Compare Lenovo Legion Slim 5 14" vs. Apple MacBook Pro 13 (2022)
VS
Compare Lenovo Legion Slim 5 14" vs. Apple MacBook Air 15 (2023)
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
125,595
Recommendations made
27,213
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
