Home Technology Asus ROG Zephyrus G15 laptop review: Eye-catcher

Asus ROG Zephyrus G15 laptop review: Eye-catcher

by news-editor
Asus ROG Zephyrus G15 laptop review: Eye-catcher

The great white shark. The Zephyrus G15 might look like a stylish all-rounder laptop at first glance. However, there’s powerful high-end hardware from AMD and Nvidia under the hood. We have tested the 15-inch gaming device extensively.

If you decide to buy the top model of the new ROG Zephyrus G15, you will get an extremely powerful overall package. In this way, the GA503Q model that we tested can boast a very powerful Ryzen 9 5900HS CPU and a GeForce RTX 3080 laptop GPU that is only specified with a TDP of 100 watts (including Dynamic Boost). Furthermore, a 1 TB NVMe-based SSD and 32 GB of DDR4 RAM (dual-channel) were installed in our test model, 16 GB of which are soldered to the motherboard. Meanwhile, a matte WQHD display with FreeSync and 165 Hz takes care of image reproduction. Note: According to our specs document, a 144 Hz Full HD display is available as a secondary panel option, but we wouldn’t recommend it due to the low color-space coverage (45% NTSC).

Memory

32768 MB 

, 16 GB on board 16 GB SO-DIMM DDR4-3200, max. 48 GB, all slots full

Display

15.60 inch 16:9, 2560 x 1440 pixel 188 PPI, CMN N156KME-GNA (CMN152A), IPS level, WQHD, glossy: no, 165 Hz

Mainboard

AMD Promontory/Bixby FCH

Soundcard

Realtek ALC289 @ AMD K17.6 – Audio Processor – High Definition Audio Controller

Connections

4 USB 3.1 Gen2, USB-C Power Delivery (PD), 1 HDMI, 1 Kensington Lock, Audio Connections: 1 combined port (mic/headset), Card Reader: microSD

Networking

Realtek PCIe GBE Family Controller (10/100/1000/2500/5000MBit/s), Intel Wi-Fi 6 AX200 (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/ax = Wi-Fi 6), Bluetooth 5

Size

height x width x depth (in mm): 20 x 355 x 243 ( = 0.79 x 13.98 x 9.57 in)

Operating System

Microsoft Windows 10 Pro 64 Bit

Additional features

Speakers: 6 speakers, Keyboard: chiclet, Keyboard Light: yes, 200-watt power adapter, Armoury Crate, 24 Months Warranty

Weight

1.99 kg ( = 70.2 oz / 4.39 pounds), Power Supply: 490 g ( = 17.28 oz / 1.08 pounds)

Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

Top 10 Laptops

Multimedia, Budget Multimedia, Gaming, Budget Gaming, Lightweight Gaming, Business, Budget Office, Workstation, Subnotebooks, Ultrabooks, Chromebooks

under 300 USD/Euros, under 500 USD/Euros, 1.000 USD/Euros

Best Displays, for University Students

Top 10 Smartphones

Smartphones, Phablets, ≤5-inch, Camera SmartphonesThe Best Smartphones for Less Than 160 Euros

The Zephyrus G15 is available in gray or white. The latter edition is definitely an eye-catcher. On the one hand, white is hardly ever used in the laptop segment, and on the other hand, various detail accents like small dots or holes on the lid provide for a different look. Visually, the device looks very high-end, especially since the cover and keyboard area are made of a magnesium-aluminum mix (the surfaces tend to creak when twisted, though).

Stability is okay for such a slim case, as long as you don’t make too many demands. The build quality is at a high level. All elements of the test device merge smoothly with each other. The hinge construction is a bit unusual for a gaming laptop. The hinges were designed in such a way that the rear area of the base unit is raised by several millimeters when the lid is opened (a maximum angle of 180°, a one-handed opening is possible), which simultaneously favors ventilation (however, the display tips backwards rather quickly when the surface is shaken).

The G15 also impresses with its low weight. Just under 2 kg is the lowest value in the test field and can be transported quite comfortably. Things are similar in terms of dimensions. The combination of a slim-bezel design and 2.0 cm of height guarantee a slim appearance.

      Lenovo Legion 7 15IMH05-81YT001VGE       MSI GS66 10SGS       Acer Predator Triton 500 PT515-52-70N3       Asus ROG Zephyrus G15 GA503Q       Razer Blade 15 RTX 2080 Super Max-Q ❌

359.34 mm / 14.1 inch
259.04 mm / 10.2 inch

19.9 mm / 0.783 inch

2.4 kg5.25 lbs358 mm / 14.1 inch
248 mm / 9.76 inch

20 mm / 0.787 inch

2.2 kg4.78 lbs359 mm / 14.1 inch
255 mm / 10 inch

18 mm / 0.709 inch

2.1 kg4.63 lbs355 mm / 14 inch
243 mm / 9.57 inch

20 mm / 0.787 inch

2 kg4.39 lbs355 mm / 14 inch
235 mm / 9.25 inch

17.8 mm / 0.701 inch

2.2 kg4.85 lbs

Ports

The connectivity is not bad for such a compact gaming laptop. In this way, the 15-incher accommodates an RJ45 port, an audio jack, an HDMI 2.0 output, a Kensington lock slot, and a card reader that can only accept microSD models, though, which is a bit of a pity. Speaking of a pity: Due to the use of AMD, the G15 has to do without Thunderbolt. As for the USB ports, Asus has opted for two Type-A ports and two Type-C ports (3.2 Gen 2 each) with 100 watts of Power Delivery and DisplayPort support.

While right-handed users should be satisfied with the distribution of the ports, lefties will probably complain because of the layout, since the ports on the left side have been pushed too much to the front. Attached cables can significantly restrict the range of motion of an external mouse.

The wireless module from Intel (Wi-Fi 6 AX200) supports WLAN 802.11a/b/g/n/ac/ax and Bluetooth 5.1. The speed in our test (1 meter distance to the reference router, the Netgear Nighthawk AX12) was very good.

Asus provides the Zephyrus G15 with a 200-watt power adapter weighing just under 0.5 kg and measuring 15 x 7 x 2.5 cm.

Since the 15-incher doesn’t have a maintenance hatch, the entire bottom of the case has to be removed to reach the components. The bottom cover is secured with 13 screws (note: three of them are located behind rubber seals). Not only does the cooling system, which consists of two fans and several heat pipes (Liquid Metal), await inside the case, but also a SO-DIMM slot (occupied), two M.2 slots (1x free), the battery, and the wireless module are accessible.

Asus provides a 24-month warranty for the device.

Keyboard

The keyboard left us with mixed feelings. Starting with the key size, which is only convincing when it comes to the main keys. The arrow keys and the F-row, on the other hand, are quite narrow. Not every user will like the layout, either. In this way, for example, the left Shift and | are stuck directly together. A single-line Enter is also unusual for a German model. However, the missing Insert and Print Screen keys bothered us the most in the test.

Asus should also work on the labeling. Depending on the ambient brightness, the keys can hardly be read when the backlight is activated. At least the backlight can be adjusted in several levels or turned off completely if desired. Moreover, we would describe the typing feel as quite modest. The keyboard neither reacts particularly crisp nor particularly mushy to input. Practical: Sound can be conveniently controlled using special keys.

White backlight

Asus deserves praise for the generously sized touchpad. 13 x 8.5 cm is a rarity in the 15-inch segment; it allows running long distances on the display without having to reset your finger. Thanks to the huge touchpad, the palm rest is also generously sized, which benefits ergonomics. Beyond that, the touchpad impresses with a smooth and very gliding-friendly surface. There’s nothing to complain about multitouch support either (zooming and scrolling using two-finger gestures). Only the loud and somewhat rattly click noise is a drawback.

WQHD displays currently represent the perfect compromise between image sharpness and resource consumption. Asus uses a 165 Hz model from CMN (N156KME-GNA) for the Zephyrus G15; it’s well suited for gamers due to the high frequency and the relatively low response time (under 10 ms gray-to-gray).

316

cd/m²305

cd/m²308

cd/m²321

cd/m²327

cd/m²303

cd/m²311

cd/m²295

cd/m²292

cd/m²

Distribution of brightness

CMN N156KME-GNA (CMN152A)

X-Rite i1Pro 2

Maximum: 327 cd/m² Average: 308.7 cd/m² Minimum: 15 cd/m²

Brightness Distribution: 89 %

Center on Battery: 327 cd/m²

Contrast: 991:1 (Black: 0.33 cd/m²)

ΔE Color 4.49 | 0.6-29.43 Ø5.7, calibrated: 2.27

ΔE Greyscale 4.2 | 0.64-98 Ø5.9

99% sRGB (Argyll 3D) 86% AdobeRGB 1998 (Argyll 3D)

Gamma: 2.173

Asus ROG Zephyrus G15 GA503Q

CMN N156KME-GNA (CMN152A), IPS-Level, 2560×1440, 15.60MSI GS66 10SGS

AU Optronics B156HAN12.0, IPS, 1920×1080, 15.60Razer Blade 15 RTX 2080 Super Max-Q

AU Optronics B156HAN12.0, IPS, 1920×1080, 15.60Acer Predator Triton 500 PT515-52-70N3

AUO B156HAN12.0 (AUO7A8C), IPS, 1920×1080, 15.60Lenovo Legion 7 15IMH05-81YT001VGE

AUO048E, IPS, 1920×1080, 15.60 Response Time Grey 50% / Grey 80% *

8.8 (4.4, 4.4)

11.2 (6, 5.2)

-27%

6 (3, 3)

32%

14.4 (7.2, 7.2)

-64%

8 (4, 4)

9%

Response Time Black / White *

11.2 (6.8, 4.4)

10 (5.2, 4.8)

11%

9 (5, 4)

20%

10.4 (5.2, 5.2)

7%

8 (4, 4)

29%

PWM FrequencyBrightness middle

327

339.4

4%

347

6%

320

-2%

470

44%

Brightness

309

331

7%

328

6%

318

3%

468

51%

Brightness Distribution

89

92

3%

89

0%

88

-1%

85

-4%

Black Level *

0.33

0.24

27%

0.285

14%

0.24

27%

0.21

36%

Contrast

991

1414

43%

1218

23%

1333

35%

2238

126%

Colorchecker DeltaE2000 *

4.49

1.58

65%

2.35

48%

4.03

10%

3.28

27%

Colorchecker DeltaE2000 max. *

8.42

3.8

55%

4.15

51%

8.43

-0%

7.31

13%

Colorchecker DeltaE2000 calibrated *

2.27

1.47

35%

1.16

49%

0.98

57%

0.8

65%

Greyscale DeltaE2000 *

4.2

2.3

45%

3.04

28%

5.94

-41%

4.49

-7%

Gamma

2.173 101%

2.24 98%

2.35 94%

2.42 91%

2.4 92%

CCT

7014 93%

6952 93%

6658 98%

6751 96%

7438 87%

Color Space (Percent of AdobeRGB 1998)

86

64.8

-25%

65

-24%

66

-23%

65

-24%

Color Space (Percent of sRGB)

99

99.4

0%

99

0%

99

0%

99

0%

* … smaller is better

However, professional users who want to do photo or video editing, for example, and who rely on high color-space coverage should also be happy with the WQHD panel. According to our tests, the 15-inch display covers 99% of the sRGB space and 86% of the AdobeRGB space – a very good result. For comparison: The competition manages a maximum of 66% of AdobeRGB.

The color accuracy, which is decent out of the box, can be brought to a very good level via calibration (see Calman screenshots).

The rest of the panel’s values are less spectacular. With a brightness of just under 310 cd/m² and a contrast of around 1,000:1, the ROG Zephyrus G15 settles in the midfield. The same applies to the black level (0.33 cd/m²). The viewing angles are at the typical IPS level.

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.

   ↔    Response Time Black to White11.2 ms … rise ↗ and fall ↘ combined↗ 6.8 ms rise

↘ 4.4 ms fallThe screen shows good response rates in our tests, but may be too slow for competitive gamers.

In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 14 % of all devices are better.

This means that the measured response time is better than the average of all tested devices (24.4 ms).   ↔    Response Time 50% Grey to 80% Grey8.8 ms … rise ↗ and fall ↘ combined↗ 4.4 ms rise

↘ 4.4 ms fallThe screen shows fast response rates in our tests and should be suited for gaming.

In comparison, all tested devices range from 0.8 (minimum) to 636 (maximum) ms. » 8 % of all devices are better.

This means that the measured response time is better than the average of all tested devices (38.7 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession – a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.

Screen flickering / PWM not detected

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9711 (minimum: 5 – maximum: 142900) Hz was measured.

As usual, Asus puts its powerful Armoury Crate software on the system, which offers dozens of settings and tuning options. Our measurements were conducted using the “Performance” profile.

Armoury Crate

Despite its compact dimensions, the Zephyrus G15 is a true high-end laptop that should have enough power for all common application scenarios in the coming years.

With the Cezanne generation, AMD further increases the pressure on its main competitor Intel, which is increasingly falling behind in terms of technology.

The 7 nm Ryzen 9 5900HS in the G15 belongs to the upper class and can boast 8 cores (16 threads in parallel via SMT) and 16 MB of L3 cache. The base clock speed of 3.3 GHz is increased up to 4.6 GHz under load via Turbo. According to Cinebench R15, the 35-watt CPU reaches between 3.0 and 4.5 GHz in single-core scenarios, whereas the clock rate settles at around 4.0 GHz when all cores are loaded.

010203040506070809010011012013014015016017018019020021022023024025026027028029030031032033034035036037038039040041042043044045046047048049050051052053054055056057058059060061062063064065066067068069070071072073074075076077078079080081082083084085086087088089090091092093094095096097098099010001010102010301040105010601070108010901100111011201130114011501160117011801190120012101220123012401250126012701280129013001310132013301340135013601370138013901400141014201430144014501460147014801490150015101520153015401550156015701580159016001610162016301640165016601670168016901700171017201730174017501760177017801790180018101820183018401850186018701880189019001910192019301940195019601970198019902000201020202030Tooltip

Compared to Intel’s Comet Lake chips, the R9 5900HS does very well. As you can see in the tables below, even the expensive Core i9-10980HK top model can’t keep up with the AMD CPU. Correspondingly, the choice of a Cezanne processor is spot on from a price-performance perspective.

Cinebench R15 CPU Multi 64Bit

2020 Points

Cinebench R15 OpenGL 64Bit

142 fps

Cinebench R15 Ref. Match 64Bit

99.6 %

Cinebench R15 CPU Single 64Bit

211 Points

Help

System benchmarks also benefit from the fast CPU. With a PCMark 10 score of 6,896 points, the Zephyrus G15 is able to outperform the competition, which – at least on paper – lags between 5% and 26% behind. Subjectively speaking, all comparison devices offer a very high system speed.

Asus ROG Zephyrus G15 GA503Q

GeForce RTX 3080 Laptop GPU, R9 5900HS, SK Hynix HFM001TD3JX013N

6896 Points ∼100%

Lenovo Legion 7 15IMH05-81YT001VGE

GeForce RTX 2080 Super Max-Q, i9-10980HK, 2x Samsung PM981a MZVLB1T0HBLR (RAID 0)

6574 Points ∼95% -5%

MSI GS66 10SGS

GeForce RTX 2080 Super Max-Q, i7-10750H, Samsung SSD PM981 MZVLB512HAJQ

6154 Points ∼89% -11%

Acer Predator Triton 500 PT515-52-70N3

GeForce RTX 2080 Super Max-Q, i7-10750H, Samsung SSD PM981a MZVLB512HBJQ

5484 Points ∼80% -20%

Average of class Gaming

  (2603 – 7511, n=326)

5375 Points ∼78% -22%

Razer Blade 15 RTX 2080 Super Max-Q

GeForce RTX 2080 Super Max-Q, i7-10875H, Samsung PM981a MZVLB1T0HBLR

5093 Points ∼74% -26%

PCMark 10 Score6896 points

Help

Asus doesn’t mess up when it comes to latencies either. The LatencyMon tool shows that the 15-incher is fully suitable for practical use. Some rivals reveal weaknesses here.

Acer Predator Triton 500 PT515-52-70N3

GeForce RTX 2080 Super Max-Q, i7-10750H, Samsung SSD PM981a MZVLB512HBJQ

6243.8 μs * ∼100% -1658%

Lenovo Legion 7 15IMH05-81YT001VGE

GeForce RTX 2080 Super Max-Q, i9-10980HK, 2x Samsung PM981a MZVLB1T0HBLR (RAID 0)

1622.8 μs * ∼26% -357%

MSI GS66 10SGS

GeForce RTX 2080 Super Max-Q, i7-10750H, Samsung SSD PM981 MZVLB512HAJQ

1387.9 μs * ∼22% -291%

Razer Blade 15 RTX 2080 Super Max-Q

GeForce RTX 2080 Super Max-Q, i7-10875H, Samsung PM981a MZVLB1T0HBLR

785 μs * ∼13% -121%

Asus ROG Zephyrus G15 GA503Q

GeForce RTX 3080 Laptop GPU, R9 5900HS, SK Hynix HFM001TD3JX013N

355.1 μs * ∼6%

* … smaller is better

Although the storage drive comes from the rather unknown brand SK Hynix, the 1 TB SSD can easily compete with the Samsung models from the competition. The PCIe 4 drive achieves a very high speed for both small and large files. A second M.2 slot is available for upgrades.

Asus ROG Zephyrus G15 GA503Q

SK Hynix HFM001TD3JX013NMSI GS66 10SGS

Samsung SSD PM981 MZVLB512HAJQRazer Blade 15 RTX 2080 Super Max-Q

Samsung PM981a MZVLB1T0HBLRAcer Predator Triton 500 PT515-52-70N3

Samsung SSD PM981a MZVLB512HBJQLenovo Legion 7 15IMH05-81YT001VGE

2x Samsung PM981a MZVLB1T0HBLR (RAID 0) Write 4K

156.4

132.5

-15%

135.7

-13%

131.7

-16%

110.42

-29%

Read 4K

66.69

45.03

-32%

46.98

-30%

47.34

-29%

55.12

-17%

Write Seq

2318

1987

-14%

2180

-6%

2884

24%

Read Seq

2151

1434

-33%

1949

-9%

2303

7%

Write 4K Q32T1

525

467.5

-11%

510.1

-3%

423.9

-19%

466.56

-11%

Read 4K Q32T1

452.1

536

19%

569.3

26%

487.7

8%

516.87

14%

Write Seq Q32T1

3055

2003

-34%

2984

-2%

2822

-8%

3423.6

12%

Read Seq Q32T1

3607

3306

-8%

3238

-10%

3478

-4%

3519.4

-2%

Score Total

5090

4588

-10%

4843

-5%

4677

-8%

4583

-10%

Score Write

2464

2029

-18%

2215

-10%

2367

-4%

1737

-30%

Score Read

1778

1662

-7%

1725

-3%

1529

-14%

1901

7%

Access Time Write *

0.029

0.1

-245%

0.038

-31%

0.038

-31%

0.037

-28%

Access Time Read *

0.064

0.059

8%

0.051

20%

0.065

-2%

0.051

20%

4K-64 Write

2177.16

1721.47

-21%

1886.93

-13%

2007.16

-8%

1378.48

-37%

4K-64 Read

1429.48

1502.66

5%

1484.47

4%

1205.16

-16%

1549.29

8%

4K Write

126.8

117.25

-8%

95.45

-25%

98.89

-22%

102

-20%

4K Read

53.56

50.96

-5%

45.48

-15%

47.55

-11%

43.01

-20%

Seq Write

1600.23

1901.41

19%

2322.09

45%

2612.8

63%

2561

60%

Seq Read

2949.59

1086.4

-63%

1949.74

-34%

2766.61

-6%

3088

5%

* … smaller is better

CDM 5/6 Read Seq Q32T1:
3607 MB/s

CDM 5/6 Write Seq Q32T1:
3055 MB/s

CDM 5/6 Read 4K Q32T1:
452.1 MB/s

CDM 5/6 Write 4K Q32T1:
525 MB/s

CDM 5 Read Seq:
2151 MB/s

CDM 5 Write Seq:
2318 MB/s

CDM 5/6 Read 4K:
66.69 MB/s

CDM 5/6 Write 4K:
156.4 MB/s

01020304050607080901001101201301401501601701801902002102202302402502602702802903003103203303403503603703803904004104204304404504604704804905005105205305405505605705805906006106206306406506606706806907007107207307407507607707807908008108208308408508608708808909009109209309409509609709809901000101010201030104010501060107010801090110011101120113011401150116011701180119012001210122012301240125012601270128012901300131013201330134013501360137013801390140014101420143014401450146014701480149015001510152015301540155015601570158015901600161016201630164016501660167016801690170017101720173017401750176017701780179018001810182018301840185018601870188018901900191019201930194019501960197019801990200020102020203020402050206020702080209021002110212021302140215021602170218021902200221022202230224022502260227022802290230023102320233023402350236023702380239024002410242024302440245024602470248024902500251025202530254025502560257025802590260026102620263026402650266026702680269027002710272027302740275027602770278027902800281028202830284028502860287028802890290029102920293029402950296029702980299030003010302030303040305030603070308030903100311031203130314031503160317031803190320032103220323032403250326032703280329033003310332033303340335033603370338033903400341034203430344034503460347034803490350035103520353035403550356035703580359036003610Tooltip

: Ø3592 (3397.72-3606.39)

In order not to overtax the cooling system of the slim 15-inch case, Asus uses the weakest version of the RTX 3080 laptop GPU that has an 80-watt TDP (100 watts including Dynamic Boost).

3DMark Cloud Gate Standard Score

42022 points3DMark Fire Strike Score

20784 points3DMark Time Spy Score

9391 points

Help

The low TDP has a correspondingly negative impact on performance. Despite the large number of shaders, which is far from the desktop counterpart’s level (6,144 vs. 8,704), the RTX 3080 laptop version can hardly distinguish itself from devices based on the RTX 2080 (Super) Max-Q in the 3D benchmarks. As a result, buyers shouldn’t expect a big performance leap.

8 GB of GDDR6 VRAM is also a bit meager in 2021 considering the video memory requirements of many modern games. A minimum of 10 GB would have been appropriate here (at least the 3080 laptop version is also available as a 16 GB model).

We tested how the GPU behaves over a prolonged period of time with the RPG heavyweight The Witcher 3 for about 60 minutes (Full HD/Ultra). On average, the RTX 3080 laptop GPU ran at 1,260 MHz (base clock speed of 780 MHz) and did not suffer from any performance drops

05101520253035404550556065707580859095100Tooltip

As long as you limit yourself to the native resolution, the Zephyrus G15 delivers very good performance in games. 2560×1440 pixels and maximum details is even possible in demanding titles, although it’s not always enough to exceed 60 FPS (see comparison table).

Asus ROG Zephyrus G15 GA503Q

GeForce RTX 3080 Laptop GPU, R9 5900HS

62.2 (7.22min, 44P0.1, 51.4P1 – 208max) fps ∼100%

Acer Predator Triton 500 PT515-52-70N3

GeForce RTX 2080 Super Max-Q, i7-10750H

58.2 (47min) fps ∼94% -6%

Average of class Gaming

  (9.3 – 89.2, n=76)

46.3 fps ∼74% -26%

Asus ROG Zephyrus G15 GA503Q

GeForce RTX 3080 Laptop GPU, R9 5900HS

90.2 fps ∼100%

Lenovo Legion 7 15IMH05-81YT001VGE

GeForce RTX 2080 Super Max-Q, i9-10980HK

88.8 (73min, 83P1 – 93max) fps ∼98% -2%

Razer Blade 15 RTX 2080 Super Max-Q

GeForce RTX 2080 Super Max-Q, i7-10875H

87.7 fps ∼97% -3%

Acer Predator Triton 500 PT515-52-70N3

GeForce RTX 2080 Super Max-Q, i7-10750H

83.4 (67min) fps ∼92% -8%

MSI GS66 10SGS

GeForce RTX 2080 Super Max-Q, i7-10750H

74.3 fps ∼82% -18%

Average of class Gaming

  (12.6 – 115, n=434)

54.8 fps ∼61% -39%

Although the Zephyrus G15 can get very loud in 3D mode with a maximum of 49 to 51 dB, noise development is roughly on par with the competition, which also screams for a headset when gaming. The situation is much quieter in idle mode. On the one hand, the fans sometimes turn off completely (silent operation), and on the other hand, the base noise level is quite decent considering it’s only 27 dB.

dB(A)
0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2038.142.342.437.241.92536.438.437.337.535.43144.945.646.644.248.64031.832.631.629.232.25041.840.635.635.538.46329.83231.426.4298026.425.819.517.229.410029.123.919.117.924.61252829.120.418.529.616027.530.824.925.330.420031.429.726.824.82925033.630.324.921.833.831537.22520.91834.640034.321.819.315.435.750035.122.417.915.736.963037.120.714.112.138.180038.219.712.111.340.1100037.417.811.511.439.7125039.618.811.21141.6160038.416.411.311.340.1200038.814.811.811.341.1250038.614.311.811.640.6315036.813.912.212.239.540003413.412.512.336.6500031.113.312.812.533.2630029.813.112.812.732.7800024.713.513.112.728.61000019.613.813.212.621.31250017.612.812.912.317.21600017.612.312.211.713.7SPL48.530.426.425.450.5N6.31.40.80.77.2median 34median 17.8median 12.9median 12.5median 34.6Delta5.15.23.835.1hearing rangehide median Fan NoiseAsus ROG Zephyrus G15 GA503Q

Noise Level

Idle

26 / 27 / 31 dB(A)

Load

49 / 51 dB(A)
 


 

30 dB

silent

40 dB(A)

audible

50 dB(A)

loud

 

min: , med: , max:    Earthworks M23R, Arta (15 cm distance)   environment noise: 25 dB(A)

Heat development is a bit worse on the Zephyrus G15 than on its (technically outdated) opponents. In thiss way, we were able to obtain up to 51 °C (~124 °F) on the top and up to 56 °C (~133 °F) on the bottom of the chassis in the stress test with the FurMark and Prime95 tools. The case reaches about 30 °C (~86 °F) in idle usage. Furthermore, the components don’t get excessively hot under load. While the GPU reaches just over 70 °C (~158 °F) in 3D applications, the CPU heats up to slightly over 80 °C (~176 °F).

 49 °C

120 F51 °C

124 F49 °C

120 F  45 °C

113 F47 °C

117 F43 °C

109 F  36 °C

97 F39 °C

102 F36 °C

97 F 

Maximum: 51 °C = 124 F

Average: 43.9 °C = 111 F

55 °C

131 F56 °C

133 F55 °C

131 F50 °C

122 F52 °C

126 F48 °C

118 F40 °C

104 F46 °C

115 F39 °C

102 F

Maximum: 56 °C = 133 F

Average: 49 °C = 120 F

Power Supply (max.)  44 °C = 111 F | Room Temperature 20 °C = 68 F | Fluke t3000FC (calibrated), Voltcraft IR-900

(-) The average temperature for the upper side under maximal load is 43.9 °C / 111 F, compared to the average of 33.4 °C / 92 F for the devices in the class Gaming.

(-) The maximum temperature on the upper side is 51 °C / 124 F, compared to the average of 39.8 °C / 104 F, ranging from 21.6 to 68.8 °C for the class Gaming.

(-) The bottom heats up to a maximum of 56 °C / 133 F, compared to the average of 42.7 °C / 109 F

(+) In idle usage, the average temperature for the upper side is 28.2 °C / 83 F, compared to the device average of 33.4 °C / 92 F.

(±) Playing The Witcher 3, the average temperature for the upper side is 37.8 °C / 100 F, compared to the device average of 33.4 °C / 92 F.

(±) The palmrests and touchpad can get very hot to the touch with a maximum of 39 °C / 102.2 F.

(-) The average temperature of the palmrest area of similar devices was 28.8 °C / 83.8 F (-10.2 °C / -18.4 F).

A big surprise awaits when it comes to the sound system. In contrast to most laptops, which are especially weak in terms of bass, the Zephyrus G15 offers a very balanced and powerful sound – by laptop standards – that outshines the competition. No wonder, since Asus has installed a total of 6 speakers.

dB(A)
0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2037.247.72537.544.23144.252.74029.234.25035.537.36326.4378017.243.510017.952.912518.55816025.358.820024.859.425021.863.23151863.440015.463.850015.767.563012.168.380011.368.2100011.46912501168160011.367.8200011.369.4250011.667.7315012.263.8400012.362.8500012.559.6630012.756.9800012.760.51000012.656.41250012.352.71600011.751.1SPL25.478.1N0.743.6median 12.5median 63.2Delta35.535.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6median 17.84.62.4hearing rangehide median Pink NoiseAsus ROG Zephyrus G15 GA503QApple MacBook 12 (Early 2016) 1.1 GHz

Frequency diagram (checkboxes can be checked and unchecked to compare devices)

Asus ROG Zephyrus G15 GA503Q audio analysis

(±) | speaker loudness is average but good (78 dB)

Bass 100 – 315 Hz

(+) | good bass – only 4% away from median

(+) | bass is linear (6.5% delta to prev. frequency)

Mids 400 – 2000 Hz

(+) | balanced mids – only 4.6% away from median

(+) | mids are linear (2.1% delta to prev. frequency)

Highs 2 – 16 kHz

(+) | balanced highs – only 3.5% away from median

(+) | highs are linear (5.7% delta to prev. frequency)

Overall 100 – 16.000 Hz

(+) | overall sound is linear (9.2% difference to median)

Compared to same class

» 3% of all tested devices in this class were better, 1% similar, 96% worse

» The best had a delta of 6%, average was 17%, worst was 37%

Compared to all devices tested

» 2% of all tested devices were better, 0% similar, 98% worse

» The best had a delta of 3%, average was 21%, worst was 65%

Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

(+) | speakers can play relatively loud (83.6 dB)

Bass 100 – 315 Hz

(±) | reduced bass – on average 11.3% lower than median

(±) | linearity of bass is average (14.2% delta to prev. frequency)

Mids 400 – 2000 Hz

(+) | balanced mids – only 2.4% away from median

(+) | mids are linear (5.5% delta to prev. frequency)

Highs 2 – 16 kHz

(+) | balanced highs – only 2% away from median

(+) | highs are linear (4.5% delta to prev. frequency)

Overall 100 – 16.000 Hz

(+) | overall sound is linear (9.3% difference to median)

Compared to same class

» 2% of all tested devices in this class were better, 1% similar, 97% worse

» The best had a delta of 7%, average was 19%, worst was 50%

Compared to all devices tested

» 2% of all tested devices were better, 0% similar, 98% worse

» The best had a delta of 3%, average was 21%, worst was 65%

The built-in graphics switching solution (Nvidia Optimus) leads to moderate energy consumption in idle usage. 10 to 17 watts could also come from a much weaker multimedia laptop. Under load, our measuring device displayed between 108 and 182 watts, which is also acceptable in view of the performance offered – especially when you consider the competition.

Asus impressively proves that gaming laptops with long battery life are no longer wishful thinking. A maximum of 12 hours of idle usage at minimum brightness is just as remarkable as a good 9.5 hours of Internet surfing over WLAN (brightness reduced to 150 cd/m²). With these rates, the Zephyrus G15 sprints past all its rivals. However, 3D performance also drops massively without a power adapter as our test with The Witcher 3 showed (over 90% less FPS).

Battery Runtime

Idle (without WLAN, min brightness)12h 08min
NBC WiFi Websurfing Battery Test 1.39h 24min
Load (maximum brightness)1h 30min

Asus ROG Zephyrus G15 GA503Q

R9 5900HS, GeForce RTX 3080 Laptop GPU, 90 WhMSI GS66 10SGS

i7-10750H, GeForce RTX 2080 Super Max-Q, 99.99 WhRazer Blade 15 RTX 2080 Super Max-Q

i7-10875H, GeForce RTX 2080 Super Max-Q, 80 WhAcer Predator Triton 500 PT515-52-70N3

i7-10750H, GeForce RTX 2080 Super Max-Q, 84 WhLenovo Legion 7 15IMH05-81YT001VGE

i9-10980HK, GeForce RTX 2080 Super Max-Q, 80 WhReader / Idle

728

614

-16%

522

-28%

495

-32%

WiFi v1.3

564

413

-27%

366

-35%

378

-33%

204

-64%

Load

90

94

4%

113

26%

78

-13%

85

-6%

H.264

437

92

Pros

+ lightweight and compact case

+ colorful WQHD panel

+ long battery life

+ sleek design

+ good sound

Cons

– insufficient or wrong information on the manufacturer’s homepage (TGP missing, GPU designation)

– RAM partly soldered

– suboptimal keyboard layout

– quite loud in 3D mode

– no webcam

ROG Zephyrus G15 GA503Q: Test device provided by Asus Germany

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.

We didn’t like the noise level in 3D mode and the keyboard layout as much. The fact that Asus omits a webcam and solders part of the RAM is also annoying.

You will soon be able to purchase our test configuration directly from the manufacturer at a price of $2,499.99. You will also be able to find an RTX 3070 version with 16 GB of RAM in the Eclipse Gray color variant on BestBuy for $1,799.99.

Asus ROG Zephyrus G15 GA503Q – 01/31/2021 v7

Florian Glaser

Connectivity

55 / 80 → 69%

Application Performance

95%

Gaming – Weighted Average

Florian Glaser, 2021-02- 2 (Update: 2021-02- 3)

Growing up with MS-DOS and Windows 3.1 in the early 90s, I discovered my interest in computers in my childhood. Especially computer games radiated a great fascination for me even then. From Monkey Island to Lands of Lore to Doom, everything was gambled that you could get your hands on. I have been working for Notebookcheck since 2009 with focus on high-performance gaming notebooks.

Read More

You may also like

Leave a Comment