In depth comparison and review of Lenovo ThinkPad X1 Carbon Gen 11 (21HN) and ASUS P1511CEA (EJI3X). 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 Lenovo ThinkPad X1 Carbon Gen 11 (21HN) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
robust build quality
excellent keyboard feel
impressive battery life
high-resolution display
high price point
limited graphics performance
fewer ports available
average webcam quality
Advantages and disadvantages of ASUS P1511CEA (EJI3X) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
solid build quality
decent battery life
fast SSD storage
average display quality
limited graphics performance
no backlit keyboard
fewer USB ports
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Product Type | Notebook - 180-degree hinge design | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31.56 cm x 22.25 cm x 1.536 cm | 36 cm x 23.5 cm x 1.99 cm |
| Weight | 1.12 kg | 1.8 kg |
| Case Material | Aluminium (bottom), carbon fibre (top) | - |
| Colour | Deep black paint | Slate grey |
| DISPLAY | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Screen Size (Type) | 14" - IPS | 15.6" |
|---|---|---|
| Screen Resolution | 1920 x 1200 (WUXGA) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:9 |
| Image Brightness | 400 cd/m² | 250 cd/m² |
| Colour Gamut | 100% sRGB | 45% NTSC |
| Features | Anti-glare, Low Power, Eyesafe technology | Anti-glare, NanoEdge display, IPS-level, 83% screen-to-body ratio |
| PROCESSOR | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| CPU | Intel Core i7 (13th Gen) 1365U / 1.8 GHz | Intel Core i3 (11th Gen) 1115G4 / 3 GHz |
|---|---|---|
| Max Turbo Speed | 5.2 GHz | 4.1 GHz |
| Number of Cores | 10-core | Dual-Core |
| Cache | 12 MB | 6 MB |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| RAM | 16 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | - | 16 GB |
| RAM Type | LPDDR5 SDRAM | DDR4 SDRAM |
| Speed | 6400 MHz | - |
| Rated Speed | 6400 MHz | - |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 1 |
| STORAGE | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption - Kioxia | 256 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | Intel UHD Graphics |
|---|---|---|
| Max Monitors Supported | 3 external monitor(s) | - |
| Video System Features | Functions as Intel UHD graphics (for single-channel memory) | - |
| Camera | Yes - 1080p | Yes - VGA |
| Camera Features | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera | - |
| Sound | Stereo speakers, two tweeters, two woofers, quad array microphone | Speakers, microphone |
| Codec | Realtek ALC3306 | - |
| Compliant Standards | High Definition Audio, Dolby Atmos | - |
| Audio Features | Input: Dolby Voice, 360° far-field | - |
| COMMUNICATIONS | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Wireless | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | 802.11a/b/g/n/ac, Bluetooth 5.1 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6E AX 211 | - |
| Network Interface | - | Gigabit Ethernet |
| Features | - | Single stream (1x1) |
| BATTERY | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Technology | 4-cell lithium polymer | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | 37 Wh |
| AC ADAPTER | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 45 Watt, 19 V, 2.37 A |
| INPUT | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad, air intake key design | Chiclet keyboard, 1.4mm travel distance |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Slots | - | 1 x Serial ATA (1 free) 1 x M.2 (PCI Express 3.0 x4) (0 free) |
|---|---|---|
| Interfaces | USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI (4K support) Headphone/microphone combo jack |
Headphone/microphone combo jack 2 x USB 2.0 USB 3.2 Gen 1 USB-C 3.2 Gen 1 HDMI 1.4 LAN (on supplied adapter) |
| SOFTWARE | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence | Windows 11 Home |
|---|---|---|
| Software Included | - | McAfee LiveSafe, MyASUS, Microsoft 365 (1 month trial) |
| MISCELLANEOUS | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) | ASUS P1511CEA (EJI3X) |
|---|
| Included Accessories | USB-C power adapter | Power adapter, USB-A to RJ45 gigabit ethernet adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM) solution |
| Security Slot Type | Kensington nano security slot | Kensington security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication | System password, anti-shock hard drive |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 | - |
| 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 |
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