In depth comparison and review of ASUS Vivobook Pro 16X OLED (K6604JI) and ASUS R521JA (EJ974T). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of ASUS Vivobook Pro 16X OLED (K6604JI) based on its technical characteristics, features, user experience, expert reviews and price level.
stunning oled display
powerful processor performance
solid build quality
comprehensive connectivity options
innovative cooling system
heavier than competitors
average battery life
limited upgradeability
premium 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 Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.5 cm x 24.9 cm x 2.19 cm | 36 cm x 23.5 cm x 2.29 cm |
| Weight | 1.9 kg | 1.9 kg |
| Case Material | Aluminum, plastic | - |
| Colour | 0°black | Transparent silver |
| DISPLAY | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Screen Size (Type) | 16" | 15.6" |
|---|---|---|
| Screen Resolution | 2560 x 1600 (WQXGA) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 165 Hz | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:9 |
| Image Brightness | 500 cd/m² | 200 cd/m² |
| Colour Gamut | 100% DCI-P3 | 45% NTSC |
| Features | Anti-glare, Pantone Validated, 88% screen-to-body ratio, IPS-level | Anti-glare, 83% screen-to-body ratio |
| PROCESSOR | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| CPU | Intel Core i7 (13th Gen) 13650HX / 2.6 GHz | Intel Core i5 (10th Gen) 1035G1 / 1 GHz |
|---|---|---|
| Max Turbo Speed | 4.9 GHz | 3.6 GHz |
| Number of Cores | 14-core | Quad-Core |
| Cache | L3 - 24 MB | 6 MB |
| Features | Intel Smart Cache | - |
| MEMORY | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| RAM | 16 GB (1 x 16 GB) | 4 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 32 GB | - |
| RAM Type | DDR5 SDRAM | DDR4 SDRAM |
| Speed | 4800 MHz | - |
| Rated Speed | 4800 MHz | - |
| Form Factor | SO-DIMM 262-pin | - |
| Slots Qty | 2 | - |
| Empty Slots | 1 | - |
| STORAGE | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Main Storage Size (HDD/SSD) | 1 TB SSD M.2 PCIe 4.0 - NVM Express (NVMe) | 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 4070 / Intel UHD Graphics | Intel UHD Graphics |
| Video Memory | 8 GB GDDR6 SDRAM | - |
| Video System Features | Max-Q design, MUX Switch, NVIDIA DLSS 3, NVIDIA Studio | - |
| Camera | Yes - 1080p | Yes - VGA |
| Camera Features | Privacy shutter | - |
| Sound | Harman/kardon stereo speakers, array microphone | Speaker, microphone |
| Compliant Standards | Dolby Atmos | - |
| Audio Features | Output: Smart Amplification technology, Asus Audio Booster; Input: AI noise cancelling | Output: ASUS SonicMaster |
| COMMUNICATIONS | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Network Interface | Gigabit Ethernet | - |
| Features | Single stream (1x1) | Single stream (1x1) |
| BATTERY | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Technology | 4-cell Lithium Ion | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 90 Wh | 32 Wh |
| AC ADAPTER | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 240 Watt, 20 V, 12 A | 45 Watt, 19 V, 2.37 A |
| INPUT | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | Yes | - |
| Features | Chiclet keyboard, 1.4mm travel distance, ASUS ErgoSense | Chiclet keyboard |
| CONNECTIONS & EXPANSIONS | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Slots | 2 x PCI Express 4.0 x4 / M.2 2280 (1 free) | - |
|---|---|---|
| Interfaces | 2 x USB 3.2 Gen 1 2 x USB-C (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) HDMI 2.1 Headphone/microphone combo jack LAN |
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 | Yes (microSD) |
| SOFTWARE | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Operating System (OS) | Windows 11 Home | Windows 10 Home |
|---|---|---|
| Software Included | MyASUS, ScreenXpert, NVIDIA Studio drivers, ProArt Creator Hub, Microsoft 365 (1 month trial), GlideX | - |
| MISCELLANEOUS | ASUS Vivobook Pro 16X OLED (K6604JI) | ASUS R521JA (EJ974T) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Integrated Options | Ambient light sensor | - |
| Security | Firmware Trusted Platform Module (TPM) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM) Security Chip |
| Features | MIL-STD-810H tested, BIOS protection, ASUS IceCool Pro, ASUS DialPad, Cortana support, ASUS Antimicrobial Guard | - |
| Compliant Standards | RoHS, REACH, TUV Rheinland Low Blue Light Certification, TUV Rheinland Flicker Free Certification | - |
| Max Operating Temperature | 49 °C | - |
| Min Operating Temperature | -37 °C | - |
| Humidity Range Operating | 95% RH | - |
| Model Number | K8055W | - |
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