A comparison of specs, key information, reviews, and best pricing from top retailers
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Updated January 10, 2024·
The ASUS ROG Zephyrus G15 offers superior performance for 3D, machine learning, and engineering tasks due to its powerful AMD Ryzen processor and Nvidia RTX graphics, making it ideal if those are your primary activities. It is also equipped with a higher refresh rate display, which can benefit gaming and fast-paced visuals but at the cost of lower battery life and it doesn't have a touchscreen. On the other hand, the HP Spectre x360 is less expensive and provides a higher resolution display with touchscreen capabilities. It has longer battery life and is slightly heavier; its Intel Iris graphics are less suited for intensive graphic tasks, favoring general use and portability over high-end gaming or engineering workloads. Both laptops have similar memory and storage capabilities, but the Zephyrus G15 might seem more like a gaming laptop due to its design and branding. 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 Zephyrus G15
- Good for gaming and AI
Advantages of the HP Spectre x360
- Very good for general use
- Very good for software development
- Very good battery life
- Very good keyboard
Key differences
Gaming and AI
7.5
6.6
7.4/10
OVERALL GPU SCORE
3.8/10
2560 x 1440
RESOLUTION
3072 x 1920
165Hz
REFRESH RATE
60Hz
Yes
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
6.5/10
FAN NOISE SCORE
8.0/10
The ASUS ROG Zephyrus G15 is good for gaming and AI, while the HP Spectre x360 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.
Software Development
7.4
8.3
7.5/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
16.0 GB
2560 x 1440
RESOLUTION
3072 x 1920
6.5/10
KEYBOARD QUALITY SCORE
8.0/10
The HP Spectre x360 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
7.9
7.6
15.6in
SIZE
16.0in
2560 x 1440
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
60Hz
309.0 nits
BRIGHTNESS
406.0 nits
The ASUS ROG Zephyrus G15 has a better screen than the HP Spectre x360 for gaming and AI, while the HP Spectre x360 has a better screen for content creation.
For general use, both the ASUS ROG Zephyrus G15 and the HP Spectre x360 offer clear, bright displays with high resolution, making text and images sharp and easy to view, which is essential for everyday tasks like browsing or document editing. Engineering and design professionals will appreciate their wide color gamuts, ensuring accurate color reproduction which is crucial for tasks that require color precision. However, gamers and those working with 3D applications may find the screens less suitable due to their lower refresh rates, which can affect the smoothness of motion and responsiveness in fast-paced scenarios.
Battery
9.5 Hours
11.0 Hours
The ASUS ROG Zephyrus G15 has 9.5 hours of battery life. The HP Spectre x360 has 11 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.
Cost
$1,637
$1,000
$500
$1,000
$1,500
$2,000
$2,500
The ASUS ROG Zephyrus G15 has a price of $1,637 and the HP Spectre x360 costs $1,000.
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Key similarities
General Use
7.9
8.2
2560 x 1440
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
IPS
309.0 nits
DISPLAY BRIGHTNESS
406.0 nits
9.5 Hours
BATTERY LIFE
11.0 Hours
6.5/10
KEYBOARD QUALITY SCORE
8.0/10
7.5/10
PORTABILITY SCORE
7.3/10
Although they have very similar scores, PerfectRec considers HP Spectre x360 to be very good for general use, while the ASUS ROG Zephyrus G15 is good.
PerfectRec’s General Use Score takes into account the many different features of the laptop that make it more or less suitable for general productivity, web browsing, streaming, video calls, and running a wide variety of apps and programs.
Engineering and Design
8.0
8.0
7.5/10
OVERALL CPU SCORE
9.0/10
7.4/10
OVERALL GPU SCORE
3.8/10
16.0 GB
RAM
16.0 GB
The ASUS ROG Zephyrus G15 and HP Spectre x360 are both very good for engineering and design.
The ASUS ROG Zephyrus G15 offers a more powerful AMD Ryzen CPU and Nvidia GPU combo which is well-suited for demanding engineering and design tasks; however, it's less portable than the HP Spectre x360, which provides a sharp display and added versatility as a 2-in-1 convertible tablet but has a less powerful GPU for such tasks.
Content Creation
8.0
8.2
7.5/10
OVERALL CPU SCORE
9.0/10
2560 x 1440
RESOLUTION
3072 x 1920
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The HP Spectre x360 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.
Portability
Good
Good
15.6in
SIZE
16.0in
4.1 lbs
WEIGHT
4.7 lbs
0.7in
THICKNESS
0.7in
The ASUS ROG Zephyrus G15 and HP Spectre x360 both have good portability.
The most portable laptops are small, thin, and light.
Build Quality
8.5
8.5
The ASUS ROG Zephyrus G15 and HP Spectre x360 both have very 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 ASUS ROG Zephyrus G15 and the HP Spectre x360 compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Zephyrus G15 | HP Spectre x360 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,637 | $1,000 | ||
Release Date | |||
Release Date | May 1, 2021 | May 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.6'' x 0.78'' | 14.1'' x 9.7'' x 0.78'' | |
Weight | |||
Weight | 4.19 lbs | 4.74 lbs | |
Width | |||
Width | 13.98" | 14.09" | |
Depth | |||
Depth | 9.57" | 9.66" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 5900HS | Intel i7-13700H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 4 | |
RAM Slots | |||
RAM Slots | 1 | 0 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 9.5 Hours | 11 Hours | |
Battery Capacity | |||
Battery Capacity | 90 Wh | 90 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1440 | 3072 x 1920 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 309 nits | 406 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.5/10 | 7.4/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 6.5/10 | 8/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.5/10 | 8/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.5/10 | 9.6/10 | |
Webcam | |||
Webcam | No Webcam | 1440p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 1 | |
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 | N/A | 4 | |
Shopping
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."
HP Spectre x360
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Dig into reviews and images
PCMag
Eric Grevstad | August 2022
"As we said, Lenovo's Yoga 9i is a tough competitor to the Spectre with an equally admirable OLED display. We're sad that neither of them has an HDMI port nor a niche or slot to hold the stylus, though the HP wins points for its bundled mini docking station and magnetically attached pen. Your choice will come down to screen shape—and in our eyes, just as seeing an OLED screen spoils you for an IPS panel, enjoying a tall 3:2 display spoils you for a more conventional view. The HP Spectre x360 13.5 is our new favorite 2-in-1."
Get a great deal on the ASUS ROG Zephyrus G15 or the HP Spectre x360
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 HP
HP, also known as Hewlett-Packard, is an American technology company that develops personal computers and computer peripherals. In the laptop industry, HP is known for its entry level Essential series laptops, its mid-range Pavilion, Envy, and Victus series, and high-end Omen and Spectre series, in addition to its business-oriented EliteBook, ProBook, and Dragonfly series laptops. HP laptops generally undercut other mainstream competitors in terms of price, placing itself as the value-oriented mainstream brand.
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