In depth comparison and review of ASUS R521JA (EJ974T) and Lenovo ThinkPad L15 Gen 3 (21C7). 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 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
Advantages and disadvantages of Lenovo ThinkPad L15 Gen 3 (21C7) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
good battery life
adequate performance level
reliable security features
average display quality
limited graphics power
heavier than competitors
no thunderbolt support
| DESIGN AND DIMENSIONS | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 36 cm x 23.5 cm x 2.29 cm | 36.02 cm x 23.7 cm x 1.993 cm |
| Weight | 1.9 kg | 1.76 kg |
| Case Material | - | Polycarbonate ABS (bottom), polycarbonate ABS (top) |
| Colour | Transparent silver | Thunder black |
| DISPLAY | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 200 cd/m² | 250 cd/m² |
| Colour Gamut | 45% NTSC | 45% NTSC |
| Features | Anti-glare, 83% screen-to-body ratio | Anti-glare |
| PROCESSOR | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| CPU | Intel Core i5 (10th Gen) 1035G1 / 1 GHz | AMD Ryzen 3 Pro 5475U / 2.7 GHz |
|---|---|---|
| Max Turbo Speed | 3.6 GHz | 4.1 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | L3 - 8 MB |
| Features | - | Integrated memory controller |
| MEMORY | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| RAM | 4 GB (provided memory is soldered) | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | - | 64 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | - | 3200 MHz |
| Rated Speed | - | 3200 MHz |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 2 |
| Empty Slots | - | 1 |
| STORAGE | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | AMD Radeon Graphics |
|---|---|---|
| Max Monitors Supported | - | 3 external monitor(s) |
| Camera | Yes - VGA | Yes - 1080p |
| Camera Features | - | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera |
| Sound | Speaker, microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | - | High Definition Audio, Dolby Audio |
| Audio Features | Output: ASUS SonicMaster | Input: Dolby Voice, far-field |
| COMMUNICATIONS | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | - | AMD RZ616 - M.2 Card |
| Network Interface | - | Gigabit Ethernet |
| Ethernet Controller | - | Realtek RTL8111EPV |
| Compliant Standards | - | DASH |
| Features | Single stream (1x1) | Wake-on-LAN (WOL), dual stream (2x2) |
| BATTERY | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Technology | 2-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 32 Wh | 57 Wh |
| AC ADAPTER | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19 V, 2.37 A | 65 Watt |
| INPUT | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | - | Yes |
| Features | Chiclet keyboard | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Interfaces | USB 3.2 Gen 1 USB-C 3.2 Gen 1 2 x USB 2.0 HDMI Headphone/microphone combo jack |
USB-C 3.2 Gen 1 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) HDMI (4K support) USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack LAN |
|---|---|---|
| Memory Card Reader | Yes (microSD) | Yes (microSD) |
| SOFTWARE | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - English / Portuguese |
|---|---|---|
| Software Included | - | Glance by Mirametrix |
| MISCELLANEOUS | ASUS R521JA (EJ974T) | Lenovo ThinkPad L15 Gen 3 (21C7) |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM) Security Chip | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | - | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS, NVMe password |
| Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified |
| Carbon Footprint | - | 236 kg carbon emissions |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | - | Limited warranty - 1 year - pick-up and return |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
