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Updated January 10, 2024·
If you're looking for a laptop with high performance for engineering tasks, graphics-intensive applications, and better display quality at a higher price, the Lenovo Slim Pro 9i with its powerful processor, more RAM, higher resolution touch screen, and advanced GPU would be suitable. For more portability and affordability while still getting good performance for general use and some gaming, consider the Acer Swift X 2021 which is lighter, less expensive, and has a decent processor and GPU but a lower resolution screen and less color coverage. Keep in mind that the Lenovo offers a longer battery life, but the tradeoff is a heavier and slightly larger laptop. 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 Acer Swift X (2021)
- Very good portability
- Very good battery life
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 overall build quality
Key differences
General Use
7.4
8.5
1920 x 1080
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
Mini LED
372.0 nits
DISPLAY BRIGHTNESS
618.0 nits
10.0 Hours
BATTERY LIFE
6.0 Hours
8.0/10
KEYBOARD QUALITY SCORE
8.0/10
8.5/10
PORTABILITY SCORE
7.6/10
The Lenovo Slim Pro 9i is very good for general use, while the Acer Swift X (2021) is good.
The Lenovo Slim Pro 9i is considered very good for general use because it boasts a higher-quality screen with greater resolution and brightness, a substantially more powerful CPU and GPU for better performance, significantly more RAM for smoother multitasking, and superior speakers and keyboard quality. Whereas, the Acer Swift X, while still good for general use, offers less RAM which might limit multitasking and a less powerful CPU and GPU combination, leading to lesser performance in demanding applications; however, it maintains a solid balance with a decent screen and a lightweight form factor contributing to its portability.
Gaming and AI
6.3
7.6
4.4/10
OVERALL GPU SCORE
6.9/10
1920 x 1080
RESOLUTION
3072 x 1920
60Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
No
8.0/10
FAN NOISE SCORE
8.0/10
The Lenovo Slim Pro 9i is good for gaming and AI, while the Acer Swift X (2021) is only fair.
The Acer Swift X is decent for gaming with its Nvidia RTX 3050 GPU and a regular refresh rate, while the Lenovo Slim Pro 9i boasts a more powerful Nvidia RTX 4050 GPU and a higher screen refresh rate, enhancing its gaming and 3D performance. In addition, the Lenovo Slim Pro 9i's superior processor and high-quality Mini LED display contribute to its overall advantage in rendering graphics more smoothly and vividly compared to the Acer Swift X's IPS display.
Engineering and Design
7.0
8.9
5.6/10
OVERALL CPU SCORE
9.0/10
4.4/10
OVERALL GPU SCORE
6.9/10
8.0 GB
RAM
32.0 GB
The Lenovo Slim Pro 9i is very good for engineering and design, while the Acer Swift X (2021) is good.
The Lenovo Slim Pro 9i outshines the Acer Swift X (2021) for engineering and design due to its more robust CPU, significantly larger RAM, and the latest GPU, enabling better performance in demanding tasks, along with a higher-resolution Mini LED screen for more precise visuals.
Content Creation
7.5
8.5
5.6/10
OVERALL CPU SCORE
9.0/10
1920 x 1080
RESOLUTION
3072 x 1920
8.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
Mini LED
The Lenovo Slim Pro 9i is very good for content creation, while the Acer Swift X (2021) 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
7.3
8.3
5.6/10
OVERALL CPU SCORE
9.0/10
8.0 GB
RAM
32.0 GB
1920 x 1080
RESOLUTION
3072 x 1920
8.0/10
KEYBOARD QUALITY SCORE
8.0/10
The Lenovo Slim Pro 9i is very good for software development, while the Acer Swift X (2021) 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
6.9
9.6
14.0in
SIZE
14.5in
1920 x 1080
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
Mini LED
60Hz
REFRESH RATE
165Hz
372.0 nits
BRIGHTNESS
618.0 nits
The Lenovo Slim Pro 9i has a better screen than the Acer Swift X for general use, gaming and AI, engineering and design, content creation, and software development.
The Acer Swift X offers a decent display suitable for everyday tasks and engineering applications due to its adequate resolution and brightness, but it lacks the high refresh rate necessary for smooth 3D graphics and gaming experiences. The Lenovo Slim Pro 9i outshines with exceptional color coverage and display attributes that benefit both general computing and color-sensitive engineering work, largely thanks to its superior brightness and coverage of professional color gamuts, enhancing visual accuracy. However, like the Swift X, the Slim Pro 9i falls short for gaming and 3D tasks due to its lower refresh rate, prioritizing color fidelity and clarity over fast-paced image rendering.
Battery
10.0 Hours
6.0 Hours
The Acer Swift X has 10 hours of battery life. The Lenovo Slim Pro 9i has 6 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
Very Good
Good
14.0in
SIZE
14.5in
3.0 lbs
WEIGHT
3.7 lbs
0.7in
THICKNESS
0.8in
The Acer Swift X (2021) has very good portability, while the Lenovo Slim Pro 9i has good portability.
The most portable laptops are small, thin, and light.
Cost
$580
$1,500
$0
$500
$1,000
$1,500
$2,000
$2,500
The Acer Swift X (2021) has a price of $580 and the Lenovo Slim Pro 9i costs $1,500.
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Key similarities
Build Quality
7.6
8.0
Although they have very similar scores, PerfectRec considers Lenovo Slim Pro 9i to have very good build quality, while the Acer Swift X (2021) 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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How the Acer Swift X (2021) and the Lenovo Slim Pro 9i compare to other laptops
Spec Comparison
 |  | |
| Acer Swift X (2021) | Lenovo Slim Pro 9i |
GENERAL | |||
|---|---|---|---|
| Price | |||
$580 | $1,500 | ||
Release Date | |||
Release Date | June 1, 2021 | February 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 12.7'' x 8.4'' x 0.7'' | 12.9'' x 9.6'' x 0.85'' | |
Weight | |||
Weight | 3.06 lbs | 3.7 lbs | |
Width | |||
Width | 12.7" | 12.9" | |
Depth | |||
Depth | 8.4" | 9.64" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 5 5600U | Intel i7-13705H | |
RAM | |||
RAM | 8 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 0 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 10 Hours | 6 Hours | |
Battery Capacity | |||
Battery Capacity | 59 Wh | 75 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14" | 14.5" | |
Display Technology | |||
Display Technology | IPS | Mini LED | |
Resolution | |||
Resolution | 1920 x 1080 | 3072 x 1920 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 372 nits | 618 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 8/10 | |
Portability Score | |||
Portability Score | 8.6/10 | 7.7/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 8/10 | 8/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8/10 | 8/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8/10 | 8/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 2 | |
USB-C ports | |||
USB-C ports | 1 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 2 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | N/A | 4 | |
Shopping
Acer Swift X (2021)
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Dig into reviews and images
NotebookCheck
Sebastian Jentsch | March 2022
"The Swift X is an Acer for entry-level gaming. With the entry-level graphics chip, our Acer not only beats every single current AMD and Intel iGPU, but also Intel's dGPU Iris Xe Max. However, despite being a GDDR6 version, the GTX does not match the expectations set by its own counterparts from our database. This may be a result of the single fan, which only produces moderate noise levels under load. The performance level of the thin and light 1.4 kg (~3.09 lbs) 14-inch laptop is impressive nonetheless."
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 Acer Swift X (2021) or the Lenovo Slim Pro 9i
About Acer
Acer is a prominent Taiwanese electronics brand which makes a wide range of laptops, with multiple product lines catering to personal use, gaming, and business use. They are renowned for having exceptional value for money, as they frequently offer good specifications at a lower price than other manufacturers.
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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About the laptop team
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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
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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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