Side by side comparison and review of ASUS ROG Zephyrus S GX502GW 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 S GX502GW based on its technical characteristics, features, user experience, expert reviews and price level.
powerful gaming performance
slim, portable design
144Hz refresh rate display
effective cooling system
RGB keyboard lighting
average battery life
limited storage capacity
no webcam
high price point
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 S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36 cm x 25.2 cm x 1.89 cm | 36 cm x 23.5 cm x 2.29 cm |
| Weight | 2 kg | 1.9 kg |
| Colour | Black | Transparent silver |
| DISPLAY | ASUS ROG Zephyrus S GX502GW | 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 | - | 200 cd/m² |
| Colour Gamut | 100% sRGB | 45% NTSC |
| Features | NVIDIA G-SYNC compatible, 3 ms response rate | Anti-glare, 83% screen-to-body ratio |
| PROCESSOR | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| CPU | Intel Core i7 (9th Gen) 9750H / 2.6 GHz | Intel Core i5 (10th Gen) 1035G1 / 1 GHz |
|---|---|---|
| Max Turbo Speed | 4.5 GHz | 3.6 GHz |
| Number of Cores | 6-core | Quad-Core |
| Cache | 12 MB | 6 MB |
| 64-bit Computing | Yes | - |
| Chipset | Mobile Intel HM370 | - |
| Features | Intel Turbo Boost Technology 2.0 | - |
| MEMORY | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| RAM | 16 GB (provided memory is soldered) | 4 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 32 GB | - |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2666 MHz | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 1 | - |
| STORAGE | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Main Storage Size (HDD/SSD) | 1 TB SSD M.2 PCIe - NVM Express (NVMe) | 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 2070 | Intel UHD Graphics |
|---|---|---|
| Video Memory | 8 GB GDDR6 SDRAM | - |
| Gaming | Yes | - |
| Camera | - | Yes - VGA |
| Sound | Stereo speakers, array microphone | Speaker, microphone |
| Audio Features | ESS SABRE HiFi audio DAC technology, Smart Amplification technology | Output: ASUS SonicMaster |
| COMMUNICATIONS | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Network Interface | Gigabit Ethernet | - |
| Features | - | Single stream (1x1) |
| BATTERY | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Technology | 4-cell Lithium Ion | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 76 Wh | 32 Wh |
| AC ADAPTER | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 230 Watt, 19.5 V, 11.8 A | 45 Watt, 19 V, 2.37 A |
| INPUT | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes (RGB) | - |
| Features | Chiclet keyboard, ASUS Aura Sync RGB LED, N-key rollover, per-key RGB | Chiclet keyboard |
| CONNECTIONS & EXPANSIONS | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Interfaces | Headphone output Microphone input USB 3.2 Gen 2 USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery) 2 x USB 3.2 Gen 1 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) |
| SOFTWARE | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 10 Home |
|---|
| MISCELLANEOUS | ASUS ROG Zephyrus S GX502GW | ASUS R521JA (EJ974T) |
|---|
| Included Accessories | Power adapter, web camera | Power adapter |
|---|---|---|
| Security | - | Firmware Trusted Platform Module (TPM) Security Chip |
| Security Slot Type | Kensington security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| SAR Value | 0.28 W/kg (body), 0.28 W/kg (limb) | - |
| Model Number | ES019T | - |
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