Asus ROG Zephyrus G15 (2021) Review

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The Asus ROG Zephyrus G15 is one of the best xv-inch gaming laptops you tin can buy. It may not exist the nigh powerful option, but its slim and portable design ensures information technology hits the sweet spot between performance and portability. That said, the lack of a webcam may exist a deal-breaker for those who frequent Zoom calls.


  • Sleek and suave design
  • Great high-end performance
  • Superb screen quality
  • Comfortable keyboard


  • Lack of webcam
  • No RGB lighting


  • UK
    RRP: £2599.99

Key Features

  • Up to Nvidia RTX 3080 GPU:
    Great range of Nvidia GPU options, including the high-finish RTX 3080

  • Quad HD display:
    Available with a Quad Hard disk drive resolution, which is sharper than standard Total HD screens.

  • 165Hz refresh rate:
    High refresh rate for the everyday gamer, making fast motion appear smoother.


The Asus ROG Zephyrus G15 is the slightly larger sibling to one of my all-time favourite gaming laptops, the ROG Zephyrus G14.

But cheers to its larger frame, the ROG Zephyrus G15 tin can exist configured with more powerful components such every bit Nvidia’s RTX 3080 GPU.

Asus has made a big compromise in gild to accomplish such ability, with the total weight climbing up to ane.9kg. This tin can hardly be called an ultra-portable gaming laptop, although Asus has managed to retain the skinny design, with a height of just 19.9mm.

Other features include a Quad Hard disk brandish, speedy Ryzen 5000-Series processor and the option of a customisable AniMe Matrix chapeau. But with its smaller sibling stealing all the spotlight, tin the Asus ROG Zephyrus G15 live up the loftier expectations?

Design and keyboard

  • Eye-catching sleek design
  • Optional AniMe Matrix LED assortment on lid
  • Keyboard feels not bad back lacks RGB

I used to believe Razer was the king of gaming laptop designs, but such an award arguably belongs to Asus now. The Zephyrus G15 looks fantastic, with the casing made up of magnesium aluminium for a height-course end.

While the Razer Blade 15 likewise features a metal chassis, it tin offset to look greasy after extended use. That doesn’t seem to be the case with Zephyrus G15, even afterward my lengthy gaming sessions with Total War: Warhammer 3.

You practice go a plastic bezel surrounding the screen, and while it’s subtle enough to avoid looking tacky, that bottom bezel is noticeably mesomorphic, taking up valuable screen space. Controversially, there’south no room for a webcam up top so yous’ll demand to buy a separate 1 for Zoom calls. This is hard to forgive in an age where video calls are every bit important every bit always.

Asus ROG Zephyrus G15 (2021) rear showing off the design
Image Credit (Trusted Reviews)

This is one of the thinnest gaming laptops I’ve tested at simply 19.9mm alpine, which is remarkable for a portable that packs so much ability. But this is still a hefty machine at 1.9kg – information technology’s lighter than the 2.01kg Razer Blade 15 and tin be held in one mitt with merely minor discomfort, only I’d all the same want a more portable system for it to double up as my go-to office laptop.

The laptop also features a absurd pixelated pattern on the chapeau, which looks like someone has gone to boondocks on it with a cocktail stick. If you buy the more expensive AniMe Matrix LED display model, you’ll be able to create your own pixel fine art via the LED lights for some personalised effects.

The upwardly-firing speakers tin can exist found on either side of the keyboard. Once the speakers are set to the Realtek(R) Audio in Windows 11, they provide fantastic audio quality at a high book, with enough of bass. When watching the Md Strange 2 trailer, I was surprised by how well the audio filled up the room – I would happily spotter a film on this laptop without donning headphones.

Asus ROG Zephyrus G15 (2021) viewed from side
Image Credit (Trusted Reviews)

There’south a dandy option of ports hither, with 2x USB-C, 2x USB-A, HDMI, Ethernet, MicroSD carte slot and a headphone jack. That deserves an A+ score, making information technology incredibly piece of cake to attach whatever outside gaming peripherals.

At the top of the laptop’south deck you’ll notice keys for volume, mute and a shortcut for the Armory Crate where yous can alter and monitor the performance settings. The power button is also institute higher up the main keyboard, to prevent y’all accidentally prodding it during the middle of a game.

The keys themselves have plenty of travel and then are comfortable for both gaming and typing. The feedback click is very subtle; just enough and then you lot know a fundamental input has been registered, just without making any irritating noise for nearby colleagues. I personally prefer more clickity-clack responses from mechanical keyboards, but they’re hard to discover in gaming laptops every bit portable as the Zephyrus G15.

Asus ROG Zephyrus G15 (2021) screen and Keyboard
Image Credit (Trusted Reviews)

The keyboard also has a backlight, which should come in handy for late-night gaming sessions. However, there’south no RGB lighting hither, which ways you can’t brand snazzy furnishings like you tin with other gaming laptops – simply that may be a plus point for gamers who dislike garish designs.

The trackpad is huge, and is a joy to use cheers to quickfire sensitivity and smoothen surface. That said, I’d still recommend a gaming mouse instead for gaming.


  • Abrupt Quad HD resolution
  • Speedy 165Hz refresh rate
  • Superb colour coverage

The Asus ROG Zephyrus G15 features a 15.5-inch IPS display with options for both Total Hard disk drive (1920 x 1080) and QHD (2560 10 1440) resolutions. I personally experience the latter is the sweet spot for gaming laptops these days, seeing a sharper brandish than standard Full Hard disk and remaining significantly cheaper than 4K options.

Asus has opted for a 165Hz refresh rate here, which is enough speedy plenty for the average gamer. That said, with other gaming laptop panels seeing the refresh rate climb as loftier every bit 300Hz, there are certainly better options if yous want to see an eSports-grade operation.

I’ve been impressed with the screen on this laptop. Colours look bold and natural when watching the new Lord of the Rings trailer, while the blood orange hellscape of Warhammer 3 looked absolutely dazzling.

Asus ROG Zephyrus G15 (2021) screen showing Windows 11
Prototype Credit (Trusted Reviews)

Asus also uses an anti-glare panel, to preclude calorie-free obstructing your view of the screen. I’ve been able to play multiple games adjacent to a window on a sunny day without issue, and then it’s a welcome characteristic in my book.

I used a colorimeter to examination the screen and back up my findings. It reported a 353-nit brightness, which is higher up normal for a laptop. Unfortunately, the G15 isn’t dandy at producing deep, nighttime blacks, resulting in a mediocre contrast of 1063:1. This means you may not see a great amount of detail in night scenes such as Game of Thrones’ Battle of Winterfell, although the quality here is still goose egg to be sniffed at.

One surface area where the Zephyrus G15 display actually excels is color accurateness. It scored 99.7% coverage for sRGB, and 83.2% and 95.4% for Adobe RGB and DCI-P3 respectively, which means the colours are accurate enough for professional video editors. As a outcome, this laptop can double upwardly as a MacBook Pro rival, especially if you configure it with a high-end GPU.


  • GPU options range upwards to RTX 3080
  • Ryzen CPU offers a great performance
  • SSD is pleasingly speedy

The Asus ROG Zephyrus G15 has a huge range of GPU options, ranging from the RTX 3050 all the mode upward to the RTX 3080, which is the model I accept for review. My model also features a Ryzen 9 5900HS and 32GB of RAM, resulting in an extremely impressive spec canvass.

Benchmark scores were extremely impressive for CPU performance, achieving one of the best results I’ve ever seen from an AMD-flavoured laptop. However, Intel’s new twelfth Gen processor posted an even faster score, then you can get a faster performance elsewhere.

Asus ROG Zephyrus G15 (2021) MSI Pulse GL66 (2022) Razer Bract 15 (2021)
Processor Ryzen nine 5900HS Intel Core i7-12700H Intel Core i7-10750H
PC Mark x 6344 6989 5405
Geekbench five single-core 1485 1689 1147
Geekbench 5 multi-core 7282 10,677 5232

The RTX 3080 GPU is one of the most powerful laptop GPUs on the market, but information technology’s worth pointing out that non all RTX 3080 GPUs are fabricated equal, with Asus opting for the base 80W selection to presumably maintain that sleek form factor.

Every bit a outcome, the MSI Pulse GL66 actually achieved superior GPU results (via 3DMark Time Spy) despite having the seemingly weaker RTX 3070 flake.

Asus ROG Zephyrus G15 (2021) MSI Pulse GL66 (2022) Razer Blade 15 (2021)
GPU Nvidia RTX 3080 Nvidia RTX 3070 Nvidia RTX 3070
3DMark Time Spy 9081 9233 7687

Nevertheless, the ROG Zephyrus G15 was still capable of hitting a high frame rate for modern AAA games at a Quad Hard disk drive resolution and max graphics settings: 65fps for Horizon Zero Dawn and 54fps for Borderlands three. Other gaming laptops are capable of higher performance, just they’ll most probable also be bulkier and heavier.

My only business organisation with the performance is that the fans can go fairly loud when playing a game. Fortunately, the speakers tin can drown out the noise so it shouldn’t be too much of an issue, unless you’re trying to sneak in some gaming sessions at work.

The laptop tin can also get noticeably warm when dealing with intense workloads, although Asus has washed a groovy chore of ensuring that the palm rests (and anywhere else you’re likely to impact) remain absurd.

In terms of storage, the Zephyrus G15 is available with both 512GB and 1TB options, which should be plenty enough space for about. These SSDs are speedy likewise, with read and write scores of 3577MB/s and 2205MB/due south respectively. Such results should ensure games accept rapid-quick loading times, then you don’t have to wait impatiently to respawn.

Battery life

  • Lasted 5 hours in our battery benchmark test
  • Expect an hour at most for gaming

Due to the high-end components stuffed within, gaming laptops rarely have impressive battery life. With this in mind, I didn’t have loftier expectations for the Asus ROG Zephyrus G15 for this section.

In club to conduct a fair examination, I dialled down the effulgence settings to 150 nits before activating the PCMark 10 battery test. This saw the laptop last 5 hours earlier running out of power, which is standard for a portable with this kind of spec sheet.

Laptop's rear
Image Credit (Trusted Reviews)

Of course, yous should expect an even shorter battery life while gaming. When playing Warhammer three, the laptop would run out of power in about an hour. It’s likewise worth pointing out that you won’t run across the best gaming performance unless the laptop is plugged into the mains.

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Should you purchase information technology?

Y’all desire a high operation in a portable design:

The Asus ROG Zephyrus G15 is one of the sleekest 15-inch gaming laptops around, making information technology possible to chuck in a bag and bring it with yous on the commute. You can become fifty-fifty more portable options, but and then you’d have to sacrifice the 15-inch display and high-end gaming performance.

You need a laptop with a webcam:

The biggest issue with the ROG Zephyrus G15 is the omission of a webcam. While you lot tin connect an external webcam instead, that’due south hardly ideal for those who need to frequently hop into video calls for piece of work or social catch-ups.

Final Thoughts

The Asus ROG Zephyrus G15 is one of the most impressive 15-inch gaming laptops I’ve always tested. Information technology features a suave nonetheless subtle design, a vibrant QHD display and a speedy performance.

There are more powerful 15-inch gaming laptops bachelor, including the MSI Pulse GL66, but I’d struggle to notice a faster alternative that’due south as sleek and light every bit the Zephyrus G15. Asus has done a fantastic job of hit that sweet spot between performance and portability.

The biggest consequence with this laptop is that information technology lacks an integrated webcam, which could be problematic if yous need to frequently jump in video calls. There’s also no RGB lighting hither, which could disappoint those who want a flashy machine. Merely those are pocket-sized complaints near an otherwise excellent gaming laptop.

How nosotros test

Every gaming laptop we review goes through a series of uniform checks designed to estimate key things including build quality, operation, screen quality and bombardment life.

These include formal synthetic benchmarks and scripted tests, plus a series of real earth checks, such as how well it runs when running a AAA game.

We used as our chief laptop for at least a week.

Tested the functioning via both benchmark tests and real-world use.

We tested the screen with a colorimeter and real-world use.

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Which is ameliorate ROG G14 or G15?

They’re both great laptop but accept dissimilar strengths. The G14 is smaller and lighter, and is therefore more than portable. While the G15 has a greater range of GPU options, and so you can get a faster performance.

Does G15 have a webcam?

The 2022 edition hither does not take a webcam. But the upcoming 2022 model will feature a a webcam above the screen.

Does Zephyrus G15 have anime Matrix?

Yes it does, although this is an optional feature.

Trusted Reviews test data

Clay Rally (Full Hard disk)

Dirt Rally (Quad HD)

Horizon Zero Dawn frame rate (Full HD)

Horizon Zero Dawn frame rate (Quad Hard disk)

Borderlands three frame rate (Full Hard disk)

Borderlands iii frame charge per unit (Quad HD)

Geekbench 5 multi cadre

Geekbench 5 single cadre

3DMark Time Spy

Bombardment Life

PCMark Bombardment (office)


Adobe RGB


White Visual Colour Temperature


Black level


CrystalMarkDisk Write Speed

CrystalDiskMark Read speed

PCMark 10

Asus ROG Zephyrus G15 (2021)

100 fps

95 fps

78 fps

65 fps






five hrs

five hrs

95.iv %

83.2 %

99.7 %

6486 K


0.3323 nits

353.23 nits

2204.55 MB/s

3577.13 MB/due south


Full specs

Britain RRP



Screen Size

Storage Capacity

Front Camera


Size (Dimensions)


Operating Organisation

Release Appointment

Kickoff Reviewed Date







Display Applied science

Screen Technology

Bear upon Screen


Asus ROG Zephyrus G15 (2021)


AMD Ryzen 9 5900HS


15.half-dozen inches



90 Whr

355 x 243 ten xix.9 MM

1.ix KG

Windows 10



2560 x 1440

1x headphone jack, 1x HDMI, 2x USB-A 3.ii Gen 2, 2x USB-C 3.ii Gen ii, 1x RJ45 LAN port and 1x menu reader (microSD)

Nvidia RTX 3080


Wi-Fi vi and Bluetooth 5.1

White and black





Jargon buster


Bluetooth – named later on tenth-century Danish male monarch Harald Bluetooth who united Denmark’s tribes into a single kingdom – is a method of wireless transmission that allows for the commutation of data between devices over short distances.


HDMI stands for Loftier Definition Multimedia Interface and is to transmit video/audio signals from a source to a receiver.


The standard for wired networking. Ethernet tin run at different speeds with Gigabit Ethernet (1000Mbps) and 10/100Mbps the most popular.


Known as Solid State Drive, this is a faster course of a memory than a standard hard drive. Results in faster loading times and more than ambitious games.


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