Side by side comparison and review of ASUS ROG Zephyrus G15 (GA503QS) and ASUS R521JA (EJ974T). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of ASUS ROG Zephyrus G15 (GA503QS) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful gaming performance
high refresh rate display
lightweight and portable
efficient cooling system
long battery life
premium price tag
no webcam included
limited port selection
loud under load
Advantages and disadvantages of ASUS R521JA (EJ974T) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
lightweight design
decent battery life
adequate performance
average display quality
limited storage capacity
no backlit keyboard
basic graphics card
| DESIGN AND DIMENSIONS | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.5 cm x 24.3 cm x 1.99 cm | 36 cm x 23.5 cm x 2.29 cm |
| Weight | 1.9 kg | 1.9 kg |
| Colour | Eclipse grey | Transparent silver |
| DISPLAY | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Screen Size (Type) | 15.6" | 15.6" |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 144 Hz | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 250 cd/m² | 200 cd/m² |
| Colour Gamut | 45% NTSC, 47.34% Adobe RGB, 62.5% sRGB | 45% NTSC |
| Features | Anti-glare, FreeSync Technology, ±85° horizontal viewing angle, ±85° vertical viewing angle, IPS-level | Anti-glare, 83% screen-to-body ratio |
| PROCESSOR | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| CPU | AMD Ryzen 7 5800HS / 2.8 GHz | Intel Core i5 (10th Gen) 1035G1 / 1 GHz |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | 3.6 GHz |
| Number of Cores | 8-core | Quad-Core |
| Cache | 16 MB | 6 MB |
| 64-bit Computing | Yes | - |
| MEMORY | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| RAM | 16 GB (1 x 8 GB + 8 GB (soldered)) | 4 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 24 GB | - |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) | 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 3080 / AMD Radeon Graphics | Intel UHD Graphics |
| Video Memory | 8 GB GDDR6 SDRAM | - |
| Video System Features | NVIDIA Optimus | - |
| Gaming | Yes | - |
| Camera | - | Yes - VGA |
| Sound | Stereo speakers, two tweeters, array microphone | Speaker, microphone |
| Compliant Standards | Dolby Atmos | - |
| Audio Features | Smart Amplification technology | Output: ASUS SonicMaster |
| COMMUNICATIONS | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Network Interface | Gigabit Ethernet | - |
| Features | Dual stream (2x2) | Single stream (1x1) |
| BATTERY | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Technology | 4-cell Lithium Ion | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 90 Wh | 32 Wh |
| AC ADAPTER | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 200 Watt, 20 V, 10 A | 45 Watt, 19 V, 2.37 A |
| INPUT | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | - |
| Features | Chiclet keyboard | Chiclet keyboard |
| CONNECTIONS & EXPANSIONS | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Interfaces | Headphone/microphone combo jack 2 x USB 3.2 Gen 2 USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) LAN HDMI |
USB 3.2 Gen 1 USB-C 3.2 Gen 1 2 x USB 2.0 HDMI Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (microSD) | Yes (microSD) |
| SOFTWARE | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 10 Home |
|---|
| MISCELLANEOUS | ASUS ROG Zephyrus G15 (GA503QS) | ASUS R521JA (EJ974T) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Fingerprint reader | Firmware Trusted Platform Module (TPM) Security Chip |
| Security Slot Type | Kensington security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| Features | System password | - |
| Model Number | HN013T | - |
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