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Updated January 12, 2024·
The ASUS ROG Flow Z13 offers the versatility of a detachable keyboard allowing it to be used as a tablet, along with latest-generation Intel processing power and a newer graphics chip, which is beneficial for tasks requiring high graphical performance, but it has a smaller screen size and less battery life compared to the ASUS ROG Zephyrus G15. The Zephyrus G15, on the other hand, comes with a larger screen and significantly better battery life which is ideal for long work sessions, but it houses an older CPU and GPU combination, suggesting a comparatively lower performance for the most demanding applications. If portability and the latest tech are priorities, the Flow Z13 would be your pick, but if you need longer battery life and a bigger display, consider the Zephyrus G15. 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 ASUS ROG Flow Z13
- Very good for general use
- Very good for software development
- Very good overall display quality
- Excellent portability
- Good keyboard
Advantages of the ASUS ROG Zephyrus G15
- Best in class speakers
Key differences
Software Development
8.0
7.4
9.5/10
OVERALL CPU SCORE
7.5/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
2560 x 1440
7.5/10
KEYBOARD QUALITY SCORE
6.5/10
The ASUS ROG Flow Z13 is very good for software development, while the ASUS ROG Zephyrus G15 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
8.4
7.9
13.4in
SIZE
15.6in
2560 x 1600
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
165Hz
511.0 nits
BRIGHTNESS
309.0 nits
The ASUS ROG Flow Z13 has a better screen than the ASUS ROG Zephyrus G15 for general use, gaming and AI, engineering and design, and software development.
The screen quality of both the ASUS ROG Flow Z13 and Zephyrus G15 perform well for general use and engineering due to their high resolution and bright displays, which render sharp images, vibrant colors, and comfortable brightness levels for various lighting conditions. For engineering and design tasks, these laptops have color-accurate displays that cover a wide range of the color spectrum, including DCI-P3 and Adobe RGB, essential for precision in visual work. However, for gaming and 3D applications, despite the satisfactory resolution and panel quality, the lower refresh rate can hinder the smooth visual experience that's crucial for fast-paced games or fluidly rendering 3D animations.
Battery
6.5 Hours
9.5 Hours
The ASUS ROG Flow Z13 has 6.5 hours of battery life. The ASUS ROG Zephyrus G15 has 9.5 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
Excellent
Good
13.4in
SIZE
15.6in
2.6 lbs
WEIGHT
4.1 lbs
0.5in
THICKNESS
0.7in
The ASUS ROG Flow Z13 has excellent portability, while the ASUS ROG Zephyrus G15 has good portability.
The most portable laptops are small, thin, and light.
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Key similarities
General Use
8.0
7.9
2560 x 1600
RESOLUTION
2560 x 1440
IPS
DISPLAY TECHNOLOGY
IPS
511.0 nits
DISPLAY BRIGHTNESS
309.0 nits
6.5 Hours
BATTERY LIFE
9.5 Hours
7.5/10
KEYBOARD QUALITY SCORE
6.5/10
9.2/10
PORTABILITY SCORE
7.5/10
Although they have very similar scores, PerfectRec considers ASUS ROG Flow Z13 to be very good for general use, while the ASUS ROG Zephyrus G15 is good.
The ASUS ROG Flow Z13 offers high portability due to its low weight and detachable keyboard, making it a versatile option for general use, alongside dependable CPU and RAM for smooth operation, a high-quality touchscreen display for vivid visuals, but with moderate battery life. On the other hand, the ASUS ROG Zephyrus G15, while heavier and larger, provides a slightly better battery life and a larger screen with high-quality colors, making it ideal for prolonged general use and multimedia consumption, and is equipped with a robust CPU and ample RAM for demanding tasks.
Gaming and AI
7.5
7.5
6.2/10
OVERALL GPU SCORE
7.4/10
2560 x 1600
RESOLUTION
2560 x 1440
165Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
7.2/10
FAN NOISE SCORE
6.5/10
The ASUS ROG Zephyrus G15 and ASUS ROG Flow Z13 are both good for gaming and AI.
The ASUS ROG Flow Z13 is favored for gaming and 3D due to its higher GPU performance, featuring the Nvidia RTX 4050 which provides robust rendering capabilities and a screen with a high refresh rate of 165Hz, which is crucial for smooth visuals in fast-paced games. In contrast, the ASUS ROG Zephyrus G15, despite having a larger screen, also offers strong gaming and 3D performance with the Nvidia RTX 3070 GPU and the same high refresh rate, coupled with a powerful AMD Ryzen CPU, but it is slightly less portable due to its larger size and weight.
Engineering and Design
8.4
8.0
9.5/10
OVERALL CPU SCORE
7.5/10
6.2/10
OVERALL GPU SCORE
7.4/10
16.0 GB
RAM
16.0 GB
The ASUS ROG Flow Z13 and ASUS ROG Zephyrus G15 are both very good for engineering and design.
The ASUS ROG Flow Z13 stands out in engineering and design use due to its high-end Intel i9 CPU, dedicated Nvidia RTX 4050 GPU, and quality IPS touchscreen display with high brightness and color coverage, making it ideal for detailed visual work, plus it's highly portable with its detachable keyboard and tablet mode. In contrast, the ASUS ROG Zephyrus G15, while less portable due to a larger screen and heavier build, offers powerful performance for engineering tasks with an AMD Ryzen 9 CPU, Nvidia RTX 3070 GPU, and a high-resolution IPS display, combined with a superior keyboard, and is better suited for extended use with its longer battery life and efficient heat management.
Content Creation
8.2
8.0
9.5/10
OVERALL CPU SCORE
7.5/10
2560 x 1600
RESOLUTION
2560 x 1440
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The ASUS ROG Flow Z13 and ASUS ROG Zephyrus G15 are both very 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
8.5
8.5
The ASUS ROG Flow Z13 and ASUS ROG Zephyrus G15 both have very good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$1,575
$1,637
$500
$1,000
$1,500
$2,000
$2,500
The ASUS ROG Flow Z13 has a price of $1,575 and the ASUS ROG Zephyrus G15 costs $1,637.
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How the ASUS ROG Flow Z13 and the ASUS ROG Zephyrus G15 compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Flow Z13 | ASUS ROG Zephyrus G15 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,575 | $1,637 | ||
Release Date | |||
Release Date | May 1, 2023 | May 1, 2021 | |
Overall Dimensions | |||
Overall Dimensions | 11.9'' x 8.1'' x 0.54'' | 14'' x 9.6'' x 0.78'' | |
Weight | |||
Weight | 2.6 lbs | 4.19 lbs | |
Width | |||
Width | 11.89" | 13.98" | |
Depth | |||
Depth | 8.11" | 9.57" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-13900H | AMD Ryzen 9 5900HS | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 0 | 1 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6.5 Hours | 9.5 Hours | |
Battery Capacity | |||
Battery Capacity | 56 Wh | 90 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 13.4" | 15.6" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1600 | 2560 x 1440 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 511 nits | 309 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 9.3/10 | 7.5/10 | |
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 | 6.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7.5/10 | 9.5/10 | |
Webcam | |||
Webcam | 4K | No Webcam | |
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 | 1 | 2 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | N/A | |
Shopping
ASUS ROG Flow Z13
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Dig into reviews and images
NotebookCheck
Andreas Osthoff | March 2022
"The Asus ROG Flow Z13 is a gaming tablet with powerful Alder Lake i9 CPU. The ROG Flow Z13 impresses with its good cooling. After our review, the impression is predominantly positive. Besides a very fast Alder Lake CPU and stable gaming performance, especially the cooling system is surprisingly effective and quiet. You can use the integrated speakers without any issues while gaming. The 1200p display in the 16:10 format also impresses with good color reproduction and high brightness. Since the battery runtimes aren't particularly long as it is, we wouldn't recommend the optional 4K panel."
ASUS ROG Zephyrus G15
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Dig into reviews and images
NotebookCheck
Florian Glaser | February 2021
"As long as you're aware of the fact that the GeForce RTX 3080 laptop version can only unfold its potential to a limited extent due to Asus's low TDP setting and that it can be slower than a fast RTX 3070 laptop, the ROG Zephyrus G15 GA503Q cuts a fine figure. One of the biggest highlights turns out to be the WQHD panel, since it attracts customers with 165 Hz, relatively fast response times, FreeSync, and good color-space coverage. Other selling points are the surprisingly rich sound, the long battery life, and the sleek design. In terms of looks, the white edition stands out nicely from the competition."
Get a great deal on the ASUS ROG Flow Z13 or the ASUS ROG Zephyrus G15
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.
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