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What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
The Dell XPS 15 is a premium business laptop with a larger battery, brighter display, and higher resolution, making it well-suited for general use and professional tasks. However, its gaming performance is limited due to a less powerful GPU. On the other hand, the Lenovo Legion Slim 7, while also good for general use, emphasizes gaming and engineering with a more powerful GPU suitable for intensive gaming and 3D tasks. Both are similarly priced, portable, and offer high-quality keyboards. Choose the XPS 15 for business and multimedia, or the Legion Slim 7 for gaming and engineering-focused activities. 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 Dell XPS 15
- Very good for general use
- Very good for engineering and design
- Very good for software development
- Very good for content creation
- Very good overall build quality
- Very good battery life
- Best in class speakers
- Excellent keyboard
Advantages of the Lenovo Legion Slim 7 15.6"
- Good for gaming and AI
Key differences
General Use
8.2
7.7
1920 x 1200
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
606.0 nits
DISPLAY BRIGHTNESS
350.0 nits
10.0 Hours
BATTERY LIFE
9.0 Hours
9.0/10
KEYBOARD QUALITY SCORE
8.5/10
7.7/10
PORTABILITY SCORE
7.6/10
The Dell XPS 15 is very good for general use, while the Lenovo Legion Slim 7 15.6" is good.
The Dell XPS 15 is esteemed for general use due to its balance with a high-quality screen, substantial battery capacity, and an Intel processor matched with discrete graphics, making it well-suited for a blend of performance needs and visual tasks, while its light weight and reasonable thickness support portability. On the other hand, the Lenovo Legion Slim 7, with its AMD processor and powerful Nvidia graphics, offers superior gaming capability and a higher screen refresh rate, yet it compromises slightly on battery life and screen color accuracy, positioning it as a versatile choice that leans more towards gaming and graphics-intensive applications.
Gaming and AI
6.8
7.4
4.4/10
OVERALL GPU SCORE
7.1/10
1920 x 1200
RESOLUTION
1920 x 1080
60Hz
REFRESH RATE
165Hz
No
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
9.1/10
FAN NOISE SCORE
7.5/10
The Lenovo Legion Slim 7 15.6" is good for gaming and AI, while the Dell XPS 15 is only fair.
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.
Content Creation
8.3
7.7
9.0/10
OVERALL CPU SCORE
7.4/10
1920 x 1200
RESOLUTION
1920 x 1080
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Dell XPS 15 is very good for content creation, while the Lenovo Legion Slim 7 15.6" 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
7.5
9.0/10
OVERALL CPU SCORE
7.4/10
16.0 GB
RAM
16.0 GB
1920 x 1200
RESOLUTION
1920 x 1080
9.0/10
KEYBOARD QUALITY SCORE
8.5/10
The Dell XPS 15 is very good for software development, while the Lenovo Legion Slim 7 15.6" 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
7.4
7.7
15.6in
SIZE
15.6in
1920 x 1200
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
165Hz
606.0 nits
BRIGHTNESS
350.0 nits
The Dell XPS 15 has a better screen than the Lenovo Legion Slim 7 for software development, and content creation, while the Lenovo Legion Slim 7 has a better screen for gaming and AI.
The Dell XPS 15 and Lenovo Legion Slim 7 both boast high-resolution screens with bright displays and various panel types that cater well to everyday tasks, making them suitable for general use by offering crisp, clear visuals. Considering engineering and design, these laptops display a wide range of colors with accuracy as they cover significant parts of the DCI-P3 and Adobe RGB color gamuts, essential for professional photo editing and graphic design. However, for gaming and 3D applications, their lower refresh rates may lead to less smooth visuals, which could be noticeable when fast motion is displayed, thus detracting from the gaming or 3D experience.
Build Quality
8.5
7.6
The Dell XPS 15 has very good build quality, while the Lenovo Legion Slim 7 15.6" has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$1,000
$1,200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
The Dell XPS 15 has a price of $1,000 and the Lenovo Legion Slim 7 15.6" costs $1,200.
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Key similarities
Engineering and Design
8.1
7.8
9.0/10
OVERALL CPU SCORE
7.4/10
4.4/10
OVERALL GPU SCORE
7.1/10
16.0 GB
RAM
16.0 GB
Although they have very similar scores, PerfectRec considers Dell XPS 15 to be very good for engineering and design, while the Lenovo Legion Slim 7 15.6" is good.
The Dell XPS 15 is equipped with a high-quality display and efficient Intel processor, suited for detailed engineering and design work due to its balance of CPU, RAM, GPU, and screen quality. Meanwhile, the Lenovo Legion Slim 7 combines a robust AMD processor with a powerful Nvidia graphics card and a high-refresh-rate screen, making it ideal for both engineering applications and gaming, with the added benefit of being slightly lighter for portability.
Battery
10.0 Hours
9.0 Hours
The Dell XPS 15 has 10 hours of battery life. The Lenovo Legion Slim 7 has 9 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
15.6in
4.2 lbs
WEIGHT
4.1 lbs
0.7in
THICKNESS
0.6in
The Dell XPS 15 and Lenovo Legion Slim 7 15.6" both have good portability.
The most portable laptops are small, thin, and light.
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How the Dell XPS 15 and the Lenovo Legion Slim 7 15.6" compare to other laptops
Spec Comparison
 |  | |
| Dell XPS 15 | Lenovo Legion Slim 7 15.6" |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $1,200 | ||
Release Date | |||
Release Date | May 1, 2023 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 13.6'' x 9.1'' x 0.71'' | 14'' x 9.9'' x 0.69'' | |
Weight | |||
Weight | 4.21 lbs | 4.19 lbs | |
Width | |||
Width | 13.57" | 14.02" | |
Depth | |||
Depth | 9.06" | 9.92" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-13700H | AMD Ryzen 7 5800H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 2 | 1 | |
Storage | |||
Storage | 512 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 10 Hours | 9 Hours | |
Battery Capacity | |||
Battery Capacity | 86 Wh | 71 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 15.6" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1200 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 606 nits | 350 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 7.6/10 | |
Portability Score | |||
Portability Score | 7.8/10 | 7.6/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 9.1/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 9/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 10/10 | 8/10 | |
Webcam | |||
Webcam | 720p | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 0 | 2 | |
USB-C ports | |||
USB-C ports | 3 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 2 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | N/A | |
Shopping
Dell XPS 15
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Dig into reviews and images
PCMag
Matthew Buzzi | May 2023
"The 2023 Dell XPS 15 is more or less exactly what you'd expect from the company flagship. Its fresh components deliver measurably superior power and longevity, while the machine's premium build and design remain intact. It may not be overly exciting, but XPS loyalists and upgraders should be more than happy."
Lenovo Legion Slim 7 15.6"
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NotebookCheck
Benjamin Herzig | November 2022
"The Lenovo Legion Slim 7 is a slim Legion notebook that is just as excellent with Nvidia & Intel. However, the Legion Slim 7i slightly sullied by lacklustre battery life. You get a slim aluminium chassis, great input devices, decent port selection, fast high-quality WQXGA display and great performance. Supporting Thunderbolt 4 is one advantage of the Intel/Nvidia model tested in this review. Moreover, this variant has slightly higher CPU performance as well as better GPU performance in certain applications (e.g. CUDA-based apps). The Lenovo Legion S7i is thin, premium and performant – but less efficient than its AMD counterpart."
Get a great deal on the Dell XPS 15 or the Lenovo Legion Slim 7 15.6"
About Dell
Dell is a highly recognizable American technology company, and is one of the largest personal computer vendor by market share. Their laptops are very popular for both personal and professional use, and they also own the Alienware brand which makes mid to high end gaming laptops. Their premium XPS range of laptops offer great build quality and portability, while Latitude and Precision laptops are known for reliability, repairability and performance for business users.
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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