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The PerfectRec laptop team Learn more
Updated March 13, 2024·
When choosing between these laptops, consider that the Lenovo Slim Pro 9i will generally offer higher performance and a better display, which is better for tasks like photo editing or multitasking. On the other hand, the Lenovo ThinkBook 13x is more affordable and might be easier to carry, making it suitable for general use and frequent travel. If longer battery life is a priority for you or if you're working within a tighter budget, the ThinkBook 13x is a solid choice. However, if you require a laptop with a sharper screen and faster processing for more demanding tasks, investing in the Slim Pro 9i could be worthwhile despite the higher cost. 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 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
- Best in class overall display quality
- Very good overall build quality
- Very good keyboard
Advantages of the Lenovo ThinkBook 13x
- Excellent portability
Key differences
General Use
8.5
7.9
3072 x 1920
RESOLUTION
2880 x 1920
Mini LED
DISPLAY TECHNOLOGY
IPS
618.0 nits
DISPLAY BRIGHTNESS
500.0 nits
6.0 Hours
BATTERY LIFE
8.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
7.5/10
7.6/10
PORTABILITY SCORE
9.3/10
The Lenovo Slim Pro 9i is very good for general use, while the Lenovo ThinkBook 13x is good.
The Lenovo Slim Pro 9i offers a powerful CPU and ample RAM, ensuring smooth performance for general tasks, with a high-quality screen, long battery life, and portability that stands out, though at a higher price point; whereas the Lenovo ThinkBook 13x, while still delivering adequate CPU performance and good RAM for everyday use, distinguishes itself with balance in portability and cost, but may compromise slightly on screen excellence and battery duration compared to the Slim Pro 9i.
Gaming and AI
7.6
6.6
6.9/10
OVERALL GPU SCORE
3.7/10
3072 x 1920
RESOLUTION
2880 x 1920
165Hz
REFRESH RATE
120Hz
Yes
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
8.0/10
FAN NOISE SCORE
8.3/10
The Lenovo Slim Pro 9i is good for gaming and AI, while the Lenovo ThinkBook 13x is only fair.
The Lenovo Slim Pro 9i outshines the ThinkBook 13x in gaming and 3D tasks due to its superior GPU and higher screen refresh rate, which are crucial for smooth graphics and fast-paced action. While both have quality CPUs and screens, these factors weigh less heavily on gaming and 3D performance than the GPU and refresh rate, where the Pro 9i holds the advantage.
Engineering and Design
8.9
7.9
9.0/10
OVERALL CPU SCORE
8.6/10
6.9/10
OVERALL GPU SCORE
3.7/10
32.0 GB
RAM
16.0 GB
The Lenovo Slim Pro 9i is very good for engineering and design, while the Lenovo ThinkBook 13x is good.
The Lenovo Slim Pro 9i offers a more powerful CPU, extra RAM, and a superior GPU compared to the Lenovo ThinkBook 13x; these improvements provide the performance needed for demanding engineering tasks and ensure higher screen quality for precise design work. While the ThinkBook 13x is lighter and more portable with a quieter operating noise, these benefits come at the cost of reduced power for intensive applications.
Content Creation
8.5
8.0
9.0/10
OVERALL CPU SCORE
8.6/10
3072 x 1920
RESOLUTION
2880 x 1920
32.0 GB
RAM
16.0 GB
Mini LED
DISPLAY TECHNOLOGY
IPS
The Lenovo Slim Pro 9i and Lenovo ThinkBook 13x are both very good for content creation, though the Lenovo Slim Pro 9i is somewhat better.
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.
Screen Quality
9.6
8.2
14.5in
SIZE
13.5in
3072 x 1920
RESOLUTION
2880 x 1920
Mini LED
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
120Hz
618.0 nits
BRIGHTNESS
500.0 nits
The Lenovo Slim Pro 9i has a better screen than the Lenovo ThinkBook 13x for general use, gaming and AI, engineering and design, software development, and content creation.
The Lenovo Slim Pro 9i boasts an exceptional display with high resolution and brightness, making it ideal for vivid and clear visuals in general use and precise color reproduction in engineering and design tasks. However, its lower refresh rate is less suited for the rapidly changing images in 3D applications and gaming. The Lenovo ThinkBook 13x offers a very good display that is quite similar, with ample brightness and resolution for general tasks and accurate color for professional work, but like the Slim Pro 9i, it falls short for gaming and 3D due to its refresh rate limitations.
Battery
6.0 Hours
8.0 Hours
The Lenovo Slim Pro 9i has 6 hours of battery life. The Lenovo ThinkBook 13x has 8 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
Excellent
14.5in
SIZE
13.5in
3.7 lbs
WEIGHT
2.7 lbs
0.8in
THICKNESS
0.5in
The Lenovo ThinkBook 13x has excellent portability, while the Lenovo Slim Pro 9i has good portability.
The most portable laptops are small, thin, and light.
Cost
$1,600
$1,399
$500
$1,000
$1,500
$2,000
$2,500
The Lenovo Slim Pro 9i has a price of $1,600 and the Lenovo ThinkBook 13x costs $1,399.
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Key similarities
Software Development
8.3
7.9
9.0/10
OVERALL CPU SCORE
8.6/10
32.0 GB
RAM
16.0 GB
3072 x 1920
RESOLUTION
2880 x 1920
8.0/10
KEYBOARD QUALITY SCORE
7.5/10
Although they have very similar scores, PerfectRec considers Lenovo Slim Pro 9i to be very good for software development, while the Lenovo ThinkBook 13x 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.
Build Quality
8.0
7.6
Although they have very similar scores, PerfectRec considers Lenovo Slim Pro 9i to have very good build quality, while the Lenovo ThinkBook 13x has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
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We’re constantly working to improve.
How the Lenovo Slim Pro 9i and the Lenovo ThinkBook 13x compare to other laptops
Spec Comparison
 |  | |
| Lenovo Slim Pro 9i | Lenovo ThinkBook 13x |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,600 | $1,399 | ||
Release Date | |||
Release Date | February 1, 2023 | January 30, 2024 | |
Overall Dimensions | |||
Overall Dimensions | 12.9'' x 9.6'' x 0.85'' | 11.6'' x 8.1'' x 0.5'' | |
Weight | |||
Weight | 3.7 lbs | 2.7 lbs | |
Width | |||
Width | 12.9" | 11.6" | |
Depth | |||
Depth | 9.64" | 8.1" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-13705H | Intel Core Ultra 5 125H | |
RAM | |||
RAM | 32 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 0 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6 Hours | 8 Hours | |
Battery Capacity | |||
Battery Capacity | 75 Wh | 74 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14.5" | 13.5" | |
Display Technology | |||
Display Technology | Mini LED | IPS | |
Resolution | |||
Resolution | 3072 x 1920 | 2880 x 1920 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 120Hz | |
Display Brightness | |||
Display Brightness | 618 nits | 500 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8/10 | 7.6/10 | |
Portability Score | |||
Portability Score | 7.7/10 | 9.4/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 8/10 | 8.4/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8/10 | 7.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8/10 | 8.8/10 | |
Webcam | |||
Webcam | 1080p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 0 | |
USB-C ports | |||
USB-C ports | 2 | 3 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | 4 | |
Shopping
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 Lenovo Slim Pro 9i or the Lenovo ThinkBook 13x
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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