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Updated January 10, 2024·
If you're looking for a high-end, high-performance laptop for tasks like 3D rendering, machine learning, or engineering software, the Razer Blade 18 offers more power and better performance. It comes with more RAM and a more powerful GPU, which is crucial for such demanding applications. However, it is pricier, heavier, and offers less battery life, which makes it less portable. On the other hand, the ASUS ROG Zephyrus G15 is more affordable and has longer battery life, making it more suitable for general use and mobility. Its performance is still solid for gaming and general productivity, but it may fall short for the most intensive tasks. Both have quality IPS displays, but Razer has a larger screen size and a higher refresh rate, which can be beneficial for fast-paced gaming and video editing. 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 portability
- Good battery life
Advantages of the Razer Blade 18
- Very good for general use
- Excellent for engineering and design
- Very good for gaming and AI
- Very good for software development
- Very good overall display quality
- Excellent keyboard
Key differences
General Use
7.9
8.5
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
309.0 nits
DISPLAY BRIGHTNESS
524.0 nits
9.5 Hours
BATTERY LIFE
4.0 Hours
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
7.5/10
PORTABILITY SCORE
6.1/10
The Razer Blade 18 is 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.
Gaming and AI
7.5
8.9
7.4/10
OVERALL GPU SCORE
8.9/10
2560 x 1440
RESOLUTION
2560 x 1600
165Hz
REFRESH RATE
240Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
6.5/10
FAN NOISE SCORE
7.2/10
The Razer Blade 18 is very good for gaming and AI, while the ASUS ROG Zephyrus G15 is good.
The Razer Blade 18 boasts a more advanced GPU and higher screen refresh rate compared to the ASUS ROG Zephyrus G15, making it excellent for gaming and 3D applications where smooth visuals are paramount. Although the G15 provides good gaming performance with a capable GPU and screen refresh rate, the Blade 18's superior refresh rate and GPU enhancements deliver even more polished and fluid experiences.
Engineering and Design
8.0
9.3
7.5/10
OVERALL CPU SCORE
9.9/10
7.4/10
OVERALL GPU SCORE
8.9/10
16.0 GB
RAM
32.0 GB
The Razer Blade 18 is excellent for engineering and design, while the ASUS ROG Zephyrus G15 is very good.
The ASUS ROG Zephyrus G15 is equipped with a strong AMD CPU and an Nvidia RTX 3070 GPU which, alongside high-quality RAM and a detailed screen, are excellent for engineering and design, but it's somewhat less heavy and thick compared to the Razer Blade 18, offering better portability. On the other hand, the Razer Blade 18 has a more powerful Intel CPU and superior Nvidia RTX 4070 GPU, double the RAM, and a brighter and larger screen, which translate to higher performance in design and engineering tasks at the expense of increased weight and reduced battery life.
Content Creation
8.0
8.6
7.5/10
OVERALL CPU SCORE
9.9/10
2560 x 1440
RESOLUTION
2560 x 1600
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Razer Blade 18 and ASUS ROG Zephyrus G15 are both very good for content creation, though the Razer Blade 18 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.
Software Development
7.4
8.5
7.5/10
OVERALL CPU SCORE
9.9/10
16.0 GB
RAM
32.0 GB
2560 x 1440
RESOLUTION
2560 x 1600
6.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Razer Blade 18 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
8.9
15.6in
SIZE
18.0in
2560 x 1440
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
240Hz
309.0 nits
BRIGHTNESS
524.0 nits
The Razer Blade 18 has a better screen than the ASUS ROG Zephyrus G15 for general use, gaming and AI, engineering and design, content creation, and software development.
For general use, good screen quality often stems from a combination of high resolution for crisp images and adequate brightness for visibility in various lighting conditions, both of which the ASUS ROG Zephyrus G15 and Razer Blade 18 provide. When considering engineering and design, these laptops' displays showcase a wide color gamut, ensuring accurate color representation which is crucial for professional creative work. However, for gaming and 3D applications where fast-paced visuals are common, the lower refresh rate on these laptops' screens may lead to less smooth motion rendering, which is less ideal for these use cases.
Battery
9.5 Hours
4.0 Hours
The ASUS ROG Zephyrus G15 has 9.5 hours of battery life. The Razer Blade 18 has 4 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
Fair
15.6in
SIZE
18.0in
4.1 lbs
WEIGHT
6.6 lbs
0.7in
THICKNESS
0.8in
The ASUS ROG Zephyrus G15 has good portability, while the Razer Blade 18 has only fair portability.
The most portable laptops are small, thin, and light.
Cost
$1,637
$10
$0
$500
$1,000
$1,500
$2,000
$2,500
The ASUS ROG Zephyrus G15 has a price of $1,637 and the Razer Blade 18 costs $10.
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Key similarities
Build Quality
8.5
8.5
The ASUS ROG Zephyrus G15 and Razer Blade 18 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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We’re constantly working to improve.
How the ASUS ROG Zephyrus G15 and the Razer Blade 18 compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Zephyrus G15 | Razer Blade 18 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,637 | $10 | ||
Release Date | |||
Release Date | May 1, 2021 | February 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.6'' x 0.78'' | 15.7'' x 10.8'' x 0.86'' | |
Weight | |||
Weight | 4.19 lbs | 6.68 lbs | |
Width | |||
Width | 13.98" | 15.7" | |
Depth | |||
Depth | 9.57" | 10.8" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 5900HS | Intel i9-13950HX | |
RAM | |||
RAM | 16 GB | 32 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 1 | 2 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 9.5 Hours | 4 Hours | |
Battery Capacity | |||
Battery Capacity | 90 Wh | 91.7 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 18" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1440 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 240Hz | |
Display Brightness | |||
Display Brightness | 309 nits | 524 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 8.5/10 | |
Portability Score | |||
Portability Score | 7.5/10 | 6.2/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 6.5/10 | 7.3/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.5/10 | 9/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.5/10 | 9.5/10 | |
Webcam | |||
Webcam | No Webcam | 1440p | |
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 | 3 | |
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."
Razer Blade 18
See more
Dig into reviews and images
PCMag
Matthew Buzzi | March 2023
"Razer made a powerful laptop in the Blade 18, showing off a beautiful and fast display and the same high-quality build we’ve come to expect from this product line. It’s also quite expensive, which is hardly a surprise, but bears repeating even in this price range. It’s pricier than the Scar 18 despite an inferior GPU and half the storage, so you really have to want the Blade 18’s design to justify the cost."
Get a great deal on the ASUS ROG Zephyrus G15 or the Razer Blade 18
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 Razer
Razer is an American-Singaporean technology company. Razer is best known for their Blade series laptops, well known for their strong performance and sleek design. Although Razer charges a premium price tag for their laptops, buyers can expect a stealthy laptop with clean fit and finish and strong performance. All of their models offer great portability and build quality compared to other gaming laptops.
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