In depth comparison and review of Lenovo ThinkBook 16p G4 IRH (21J8) and ASUS P1511CEA (EJI5X). 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 ThinkBook 16p G4 IRH (21J8) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful amd processor
high-resolution display
solid build quality
good thermal management
decent battery life
heavier than competitors
limited port selection
higher price point
noisy under load
Advantages and disadvantages of ASUS P1511CEA (EJI5X) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
efficient multitasking
adequate connectivity options
compact design
average display quality
modest battery life
limited graphics performance
no backlit keyboard
| DESIGN AND DIMENSIONS | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.46 cm x 25.5 cm x 1.99 cm | 36 cm x 23.5 cm x 1.99 cm |
| Weight | 2.2 kg | 1.8 kg |
| Case Material | Aluminium (top), aluminium (bottom) | - |
| Colour | Dual tone storm grey | Slate grey |
| DISPLAY | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Screen Size (Type) | 16" - IPS | 15.6" |
|---|---|---|
| Screen Resolution | 2560 x 1600 (WQXGA) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 60 Hz | 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, Delta E<2 calibration, Eyesafe technology, X-Rite Pantone factory color calibration, Dolby Vision, Smart sense panel, ±89° viewing angle | Anti-glare, NanoEdge display, IPS-level, 83% screen-to-body ratio |
| PROCESSOR | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| CPU | Intel Core i7 (13th Gen) 13700H / 2.4 GHz | Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz |
|---|---|---|
| Max Turbo Speed | 5 GHz | 4.2 GHz |
| Number of Cores | 14-core | Quad-Core |
| Cache | 24 MB | 8 MB |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| RAM | 16 GB (2 x 8 GB) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 32 GB | 16 GB |
| RAM Type | DDR5 SDRAM | DDR4 SDRAM |
| Speed | 5200 MHz | - |
| Rated Speed | 5200 MHz | - |
| Form Factor | SO-DIMM 262-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 1 |
| Empty Slots | 0 | 1 |
| STORAGE | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 4060 / Intel Iris Xe Graphics | Intel Iris Xe Graphics |
| Max Monitors Supported | 3 external monitor(s) | - |
| Video Memory | 8 GB GDDR6 SDRAM | - |
| Video System Features | NVIDIA Resizable BAR, Advanced Optimus, Dynamic Boost 2.0, Direct X 12 Ultimate, NVIDIA DLSS 3 | 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 | Two tweeters, two woofers, dual array microphone | Speakers, microphone |
| Codec | Realtek ALC3306-CG | - |
| Compliant Standards | High Definition Audio, Dolby Atmos | - |
| Audio Features | Output: harman/kardon stereo speakers, Smart Amplifier (AMP); Input: noise-cancellation technology | - |
| VR Ready | Yes | - |
| COMMUNICATIONS | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| 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 | M.2 Card | - |
| Network Interface | - | Gigabit Ethernet |
| Features | Dual stream (2x2) | Single stream (1x1) |
| BATTERY | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Technology | Lithium polymer | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 80 Wh | 37 Wh |
| Battery Life | Up to 18 hours | - |
| Battery Run Time | Local video (1080p) playback time (150 nits): up to 18 hours | - |
| AC ADAPTER | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 230 Watt | 45 Watt, 19 V, 2.37 A |
| INPUT | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad, precision glass touchpad, smart sense keyboard backlight, SMB Service hot key | Chiclet keyboard, 1.4mm travel distance |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Slots | 1 x M.2 (PCI Express 4.0 x4) (1 free) | 1 x Serial ATA (1 free) 1 x M.2 (PCI Express 3.0 x4) (0 free) |
|---|---|---|
| Interfaces | 2 x USB 3.2 Gen 2 USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI (8K 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) |
| Memory Card Reader | Yes (SD Express Card) | - |
| SOFTWARE | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Operating System (OS) | Windows 11 Pro - English | Windows 11 Pro |
|---|---|---|
| Software Included | Microsoft Office (Trial) | McAfee LiveSafe, MyASUS, Microsoft 365 (1 month trial) |
| MISCELLANEOUS | Lenovo ThinkBook 16p G4 IRH (21J8) | ASUS P1511CEA (EJI5X) |
|---|
| Included Accessories | Power adapter | Power adapter, USB-A to RJ45 gigabit ethernet adapter |
|---|---|---|
| Integrated Options | Ambient light sensor | - |
| Security | Firmware 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, hard drive password, power-on password, MIL-STD-810H tested, Rapid Charge Pro, self-healing BIOS, LA2-Q AI performance chip | System password, anti-shock hard drive |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 6, FSC, Energy-Related Products (ErP) Lot 26, TUV Rheinland Low Blue Light (Hardware Solution), TCO Certified 9.0, Low-VOC | - |
| Carbon Footprint | 402 kg carbon emissions (EU) | - |
| 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 | Limited warranty - 1 year - pick-up and return |
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