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ROG Flow X13
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Slim Pro 9i
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Advantages of the ASUS ROG Flow X13
  • Very good portability
Advantages of the Lenovo Slim Pro 9i
  • Very good for general use
  • Very good for engineering and design
  • Good for gaming and AI
  • Very good for software development
  • Very good for content creation
  • Best in class overall display quality
  • Very good speakers

Key differences

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General Use

7.9
ROG Flow X13
Slim Pro 9i
8.5
1920 x 1200
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
Mini LED
500.0 nits
DISPLAY BRIGHTNESS
618.0 nits
6.5 Hours
BATTERY LIFE
6.0 Hours
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
8.9/10
PORTABILITY SCORE
7.6/10
The Lenovo Slim Pro 9i is very good for general use, while the ASUS ROG Flow X13 is good.

Gaming and AI

6.9
ROG Flow X13
Slim Pro 9i
7.6
4.8/10
OVERALL GPU SCORE
6.9/10
1920 x 1200
RESOLUTION
3072 x 1920
120Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
7.2/10
FAN NOISE SCORE
8.0/10
The Lenovo Slim Pro 9i is good for gaming and AI, while the ASUS ROG Flow X13 is only fair.

Engineering and Design

7.8
ROG Flow X13
Slim Pro 9i
8.9
8.1/10
OVERALL CPU SCORE
9.0/10
4.8/10
OVERALL GPU SCORE
6.9/10
16.0 GB
RAM
32.0 GB
The Lenovo Slim Pro 9i is very good for engineering and design, while the ASUS ROG Flow X13 is good.

Content Creation

7.9
ROG Flow X13
Slim Pro 9i
8.5
8.1/10
OVERALL CPU SCORE
9.0/10
1920 x 1200
RESOLUTION
3072 x 1920
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
Mini LED
The Lenovo Slim Pro 9i is very good for content creation, while the ASUS ROG Flow X13 is good.

Software Development

7.6
ROG Flow X13
Slim Pro 9i
8.3
8.1/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
32.0 GB
1920 x 1200
RESOLUTION
3072 x 1920
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
The Lenovo Slim Pro 9i is very good for software development, while the ASUS ROG Flow X13 is good.

Screen Quality

7.7
ROG Flow X13
Slim Pro 9i
9.6
13.4in
SIZE
14.5in
1920 x 1200
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
Mini LED
120Hz
REFRESH RATE
165Hz
500.0 nits
BRIGHTNESS
618.0 nits
The Lenovo Slim Pro 9i has a better screen than the ASUS ROG Flow X13 for general use, gaming and AI, engineering and design, content creation, and software development.

Portability

Very Good
ROG Flow X13
Slim Pro 9i
Good
13.4in
SIZE
14.5in
2.8 lbs
WEIGHT
3.7 lbs
0.6in
THICKNESS
0.8in
The ASUS ROG Flow X13 has very good portability, while the Lenovo Slim Pro 9i has good portability.
The most portable laptops are small, thin, and light.
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Key similarities

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Battery

6.5 Hours
ROG Flow X13
Slim Pro 9i
6.0 Hours
The ASUS ROG Flow X13 has 6.5 hours of battery life. The Lenovo Slim Pro 9i has 6 hours of battery life.

Build Quality

8.5
ROG Flow X13
Slim Pro 9i
8.0
The ASUS ROG Flow X13 and Lenovo Slim Pro 9i both have very good build quality.

Cost

$1,600
ROG Flow X13
Slim Pro 9i
$1,600
Product imageProduct image

$500

$1,000

$1,500

$2,000

$2,500

The ASUS ROG Flow X13 has a price of $1,600 and the Lenovo Slim Pro 9i costs $1,600.

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How the ASUS ROG Flow X13 and the Lenovo Slim Pro 9i compare to other laptops

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Spec Comparison

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ASUS ROG Flow X13Lenovo Slim Pro 9i
ASUS ROG Flow X13Lenovo Slim Pro 9i

GENERAL

Price
$1,600
$1,600
Release Date
May 1, 2022February 1, 2023
Overall Dimensions
11.8'' x 8.7'' x 0.62''12.9'' x 9.6'' x 0.85''
Weight
2.87 lbs3.7 lbs
Width
11.77"12.9"
Depth
8.74"9.64"

INTERNAL

Processor
AMD Ryzen 9 6900HSIntel i7-13705H
RAM
16 GB32 GB
DDR Memory Version
55
RAM Slots
00
Storage
1024 GB1024 GB

BATTERY

Battery Life
6.5 Hours6 Hours
Battery Capacity
62 Wh75 Wh

SCREEN

Diagonal Size
13.4"14.5"
Display Technology
IPSMini LED
Resolution
1920 x 12003072 x 1920
Refresh Rate
120Hz165Hz
Display Brightness
500 nits618 nits

RELIABILITY, APPEARANCE & ACOUSTICS

Build Quality Score
8.5/108/10
Portability Score
8.9/107.7/10
Gaming Laptop Appearance
YesNo
Premium Business Laptop
NoNo
Fan Noise Score
7.3/108/10

HARDWARE FEATURES

Keyboard Quality Score
8.5/108/10
Speaker Quality Score
7.5/108/10
Webcam
720p1080p
Fingerprint Reader
YesNo
Backlit Keyboard
YesYes
Number Pad
NoNo

CONNECTIVITY

USB Type-A
12
USB-C ports
22
USB-C Charging
YesYes
Display Outputs
33
Thunderbolt Version
N/A4

Shopping

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ASUS ROG Flow X13

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Dig into reviews and images

NotebookCheck

Sebastian Bade | February 2021
"The Asus ROG Flow X13 is not an off-the-shelf convertible. This quickly becomes clear when you take a closer look at the technical specs. The AMD Ryzen 9 5980HS is a state-of-the-art SoC with 8 cores and 16 threads, which also makes the 2-in-1 interesting as a work device. With 32 GB of RAM and a 1 TB SSD, gamers are also well taken care of. The dedicated Nvidia GeForce GTX 1650 Max-Q fits well into the overall concept and ensures a solid 3D performance. With the eGPU dock, which is equipped with a GeForce RTX 3080, the small convertible transforms into a full-fledged desktop replacement in terms of performance."

Lenovo Slim Pro 9i

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Dig into reviews and images

PCWorld

Matthew S. Smith | August 2023
"The Lenovo Slim Pro 9i is an impressive laptop with a brilliant Mini-LED display, a powerful 100-watt version of Nvidia RTX 4050 graphics, and excellent connectivity. Having run the Cinebench benchmark again, we were impressed with the CPU performance. That makes the Slim Pro 9i is an easy recommendation, especially for those who care about GPU and CPU performance. It’s also a fantastic choice if you frequently view HDR movies and games on your laptop."

Get a great deal on the ASUS ROG Flow X13 or the Lenovo Slim Pro 9i

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.

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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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Laptops evaluated
48,640
Laptops stats compiled
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Proprietary Laptops ratings developed
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Recommendations made
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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.

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