Choose ThinkPad E14 if you need:
- Processor Model at Core Ultra 5 (vs Intel Core i7 7600U 2.8GHz)
- Storage Capacity at 512 GB (vs 1000 GB)
- Display Size at 14 inch (vs 15.6 inch)
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Side-by-side specification comparison of two reference models
Compare ThinkPad E14 vs Thinkpad P51s
A full side-by-side comparison of reference models ThinkPad E14 and Thinkpad P51s within the same category.
Specifications
Side-by-side specification comparison of two reference models
| Specification | ThinkPad E14 | Thinkpad P51s |
|---|---|---|
| Price | Not for sale | Not for sale |
| General | ||
| Brand | Lenovo | Lenovo |
| Product Family | ThinkPad | ThinkPad |
| Model | ThinkPad E14 | Thinkpad P51s |
| Model Number | ThinkPad E14 Gen 6 (Intel) | — |
| Launch Year | 2025 year | 2017 year |
| Form Factor | Clamshell | Clamshell |
| Laptop Category | Budget Business | Mobile Workstation |
| Operating System | — | Windows 10 |
| Operating System Architecture | 64-bit | 64-bit |
| Processor | ||
| Processor Manufacturer | Intel | Intel |
| Processor Family | Intel Core Ultra 5 | Intel Core i7 |
| Processor Model | Core Ultra 5 | Intel Core i7 7600U 2.8GHz |
| Processor Generation | Intel Core Ultra Series 1 | 7th Gen |
| CPU Architecture | x86-64 | x86-64 |
| CPU Process Node | — | 14 nm |
| CPU Cores | — | 2 cores |
| Efficiency Cores | — | 0 cores |
| CPU Threads | — | 4 threads |
| CPU Base Clock | — | 2.8 GHz |
| CPU Max Boost Clock | — | 3.9 GHz |
| L3 Cache | — | 4 MB |
| Processor Base Power | — | 15 W |
| CPU Manageability Technology | — | Intel vPro eligible |
| AI / NPU | ||
| NPU | Yes | — |
| NPU Model | Intel AI Boost | — |
| NPU Performance | 11 TOPS | — |
| Graphics | ||
| Graphics Type | Integrated | Discrete |
| GPU Manufacturer | Intel | NVIDIA |
| GPU Model | — | NVIDIA Quadro M520 |
| GPU Architecture | — | NVIDIA Maxwell |
| VRAM Capacity | 0 GB | 2 GB |
| VRAM Type | Shared system memory | GDDR5 |
| Maximum External Displays | 3 displays | 3 displays |
| Maximum External Resolution | Up to 8K @ 60Hz via Thunderbolt | 4096 x 2304 |
| Memory | ||
| Installed Memory | 16 GB | 16 GB |
| Maximum Memory | 64 GB | 32 GB |
| Memory Type | DDR5 | DDR4 |
| Memory Speed | 5600 MT/s | 2400 MT/s |
| Memory Form Factor | SO-DIMM | SO-DIMM |
| Memory Slots | 2 slots | 2 slots |
| Memory Upgradeable | Yes | Yes |
| Memory Channels | Dual-channel | Dual |
| Storage | ||
| Primary Storage Type | SSD | SSD |
| Storage Capacity | 512 GB | 1000 GB |
| Storage Interface | PCIe NVMe | — |
| Storage PCIe Generation | PCIe 4.0 | PCIe 3.0 x4 |
| Storage Form Factor | M.2 2242 | — |
| Installed Storage Drives | 1 drives | 1 drives |
| Maximum Storage Drives | 2 drives | 2 drives |
| M.2 Storage Slots | 2 slots | 2 slots |
| 2.5-inch Drive Bay | — | Yes |
| RAID Support | — | — |
| Card Reader | — | Yes |
| Card Reader Formats | — | MMC, SD, SDHC, SDXC |
| Card Reader Standard | — | SD 3.0 / UHS-I |
| Display | ||
| Display Size | 14 inch | 15.6 inch |
| Display Resolution | — | 3840 x 2160 |
| Resolution Class | — | 4K |
| Display Technology | IPS LCD | IPS LCD |
| Panel Type | IPS | IPS |
| Refresh Rate | 60 Hz | 60 Hz |
| Display Brightness | 300 nits | 300 nits |
| Contrast Ratio | — | 1000:1 |
| Aspect Ratio | 16:10 | 16:9 |
| Display Finish | Anti-glare | Anti-glare |
| Adaptive Sync Technology | — | — |
| Viewing Angle | — | 170 horizontal / 170 vertical degree |
| Screen-to-Body Ratio | 90 % | — |
| Camera & Biometrics | ||
| Webcam Resolution | — | 720p |
| Camera Privacy Shutter | Yes | — |
| Camera Features | — | Fixed focus |
| Audio | ||
| Speaker Configuration | Stereo speakers, 2W x2 | 2 x speakers |
| Speaker Power | 2 W x 2 W | 2 x 2 W |
| Audio Technology | Dolby Atmos, HARMAN | HD Audio |
| Microphone Configuration | Dual-microphone array with smart noise-cancelling | Dual-array microphone |
| Audio Jack | Yes | Yes |
| Keyboard & Input | ||
| Keyboard Type | 6-row spill-resistant keyboard | Spill-resistant |
| Keyboard RGB Zones | — | 0 zones |
| Numeric Keypad | — | Yes |
| Spill-Resistant Keyboard | Yes | Yes |
| Key Travel | 1.5 mm | — |
| Copilot Key | Yes | — |
| Touchpad Type | 3-button Trackpad | Buttonless multi-touch clickpad |
| Touchpad Dimensions | 115 x 56 mm | — |
| Touchpad Material | Mylar | Mylar surface |
| Pointing Stick | — | Yes |
| Wireless & Networking | ||
| Wi-Fi Standard | — | Wi-Fi 5 |
| Wi-Fi IEEE Standard | — | 802.11ac |
| Wi-Fi Bands | — | 2.4 GHz, 5 GHz |
| Wi-Fi Spatial Streams | — | 2x2 |
| Wi-Fi Module | — | Intel Dual Band Wireless-AC 8265 |
| Bluetooth Version | — | 4.1 |
| Ethernet | Yes | Yes |
| Ethernet Speed | 1 | 1 GbE |
| WWAN | No | Optional |
| SIM Slot | — | Micro-SIM |
| Ports & Expansion | ||
| USB Type-A Port Count | 2 ports | 3 ports |
| USB Type-A Specifications | USB 5 Gbps + USB 10 Gbps | USB 5Gbps |
| USB Type-C Port Count | 2 ports | 1 ports |
| USB Type-C Specifications | USB 20 Gbps + Thunderbolt 4 / USB4 40 Gbps; USB PD; DisplayPort | USB 10Gbps, Thunderbolt 3 |
| USB4 Port Count | 1 ports | 0 ports |
| USB4 Speed | 40 Gbps | — |
| Thunderbolt Port Count | 1 ports | 1 ports |
| Thunderbolt Version | Thunderbolt 4 | Thunderbolt 3 |
| HDMI Port Count | 1 ports | 1 ports |
| HDMI Version | 2.1 | 1.4 |
| DisplayPort Output | Yes | via USB-C |
| RJ-45 Port Count | 1 ports | 1 ports |
| 3.5 mm Audio Combo Port Count | 1 ports | 1 ports |
| SD Card Slot Count | 0 ports | 1 ports |
| microSD Card Slot Count | 0 ports | 0 ports |
| Smart Card Reader | No | Optional |
| Security Lock Slot | — | Yes |
| Dedicated Docking Connector | — | Yes |
| Internal PCIe Slots | 2 x M.2 PCIe 4.0 x4 storage slots | M.2 storage, WLAN and optional WWAN slots |
| Battery & Power | ||
| Battery Chemistry | — | Li-Ion |
| Removable Battery | — | Yes |
| Power Adapter | 65 W | 65 W |
| Power Connector | USB-C | USB-C or Lenovo slim-tip |
| USB-C Charging | Yes | Yes |
| USB Power Delivery Version | USB Power Delivery 3.0 | USB Power Delivery (revision not stated) |
| Maximum USB-C Charging Power | — | 65 W |
| Dimensions & Build | ||
| Width | 313 mm | 365.8 mm |
| Depth | 219.3 mm | 252.8 mm |
| Thickness | — | 20.2 mm |
| Weight | — | 2.5 kg |
| Chassis Material | — | Glass-Fiber Reinforced Plastic |
| Lid Material | — | Glass-Fiber Reinforced Plastic |
| Base Material | — | Glass-Fiber Reinforced Plastic |
| Hinge Opening Angle | — | 180 degree |
| MIL-STD Testing | MIL-STD-810H | MIL-STD-810G |
| IP Rating | — | No rated ingress protection |
| Security & Manageability | ||
| TPM | Discrete TPM 2.0; TCG and FIPS 140-2 certified | dTPM 2.0 |
| BIOS / UEFI Password Support | Yes | Yes |
| Drive Password Support | Yes | Yes |
| Secure Boot | — | Yes |
| Enterprise Manageability | — | Intel vPro capable |
| Smart Card Support | No | Optional |
| BIOS Recovery / Self-Healing | Yes | — |
| Certifications & Sustainability | ||
| ENERGY STAR | — | ENERGY STAR 6.1 |
| EPEAT | — | Gold |
| TCO Certified | TCO Certified 9.0 | — |
| RoHS Compliance | Yes | Yes |
| Recycled Materials | 25% PCC battery enclosure; 30% PCC speaker enclosure; 90% PCC 65W adapter | — |
| Environment & Warranty | ||
| Operating Temperature | 5–35 °C | 5 to 35 °C |
| Operating Humidity | 8–95 % RH | — |
| Storage Temperature | 5–43; packaged transport -20–60 °C | — |
Summary: Which Product Should You Choose?
Choose Thinkpad P51s if you need:
- Processor Model at Intel Core i7 7600U 2.8GHz (vs Core Ultra 5)
- Storage Capacity at 1000 GB (vs 512 GB)
- Display Size at 15.6 inch (vs 14 inch)
What is the difference between ThinkPad E14 and Thinkpad P51s?
ThinkPad E14 and Thinkpad P51s share specifications such as Installed Memory (16 GB), Brand (Lenovo), Product Family (ThinkPad), Form Factor (Clamshell).
The main differences: Processor Model (ThinkPad E14: Core Ultra 5, Thinkpad P51s: Intel Core i7 7600U 2.8GHz); Storage Capacity (ThinkPad E14: 512 GB, Thinkpad P51s: 1000 GB); Display Size (ThinkPad E14: 14 inch, Thinkpad P51s: 15.6 inch).
ThinkPad E14 may suit users who need its differing values, while Thinkpad P51s benefits those who need its paired strengths. Review the specs table above before deciding.