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Side-by-side specification comparison of two reference models
A full side-by-side comparison of reference models ThinkPad X270 and Chromebook C731-C78G within the same category.
Side-by-side specification comparison of two reference models
| Specification | ThinkPad X270 | Chromebook C731-C78G |
|---|---|---|
| Price | Not for sale | Not for sale |
| General | ||
| Brand | Lenovo | Acer |
| Product Family | ThinkPad | Chromebook |
| Model | ThinkPad X270 | Chromebook C731-C78G |
| Model Number | — | C731-C78G |
| Part Number / SKU | — | NX.GM8EK.002 |
| Launch Year | 2017 year | 2016 year |
| Form Factor | Clamshell | Clamshell |
| Laptop Category | Premium / Ultraportable | Education / Budget |
| Operating System | Windows 10 | ChromeOS |
| Operating System Architecture | 64-bit | — |
| Processor | ||
| Processor Manufacturer | Intel | Intel |
| Processor Family | Intel Core i5 | Intel Celeron |
| Processor Model | Intel Core i5 7200U 2.5GHz | Intel Celeron Dual Core N3060 1.6GHz |
| Processor Generation | 7th Gen | Braswell |
| CPU Architecture | x86-64 | x86-64 |
| CPU Process Node | 14 nm | 14 nm |
| CPU Cores | 2 cores | 2 cores |
| Efficiency Cores | 0 cores | 0 cores |
| CPU Threads | 4 threads | 2 threads |
| CPU Base Clock | 2.5 GHz | 1.6 GHz |
| CPU Max Boost Clock | 3.1 GHz | 2.48 GHz |
| L2 Cache | — | 2 MB |
| L3 Cache | 3 MB | — |
| Processor Base Power | 15 W | 6 W |
| CPU Manageability Technology | Not Intel vPro eligible | — |
| AI / NPU | ||
| Platform AI Performance | — | 0 TOPS |
| Graphics | ||
| Graphics Type | Integrated | Integrated |
| GPU Manufacturer | Intel | Intel |
| GPU Model | Intel HD Graphics 620 | Intel HD Graphics 400 |
| GPU Architecture | Intel Gen9.5 | — |
| VRAM Capacity | 0 GB | 0 GB |
| VRAM Type | Shared system memory | Shared system memory |
| GPU TGP | — | 0 W |
| Maximum External Displays | 3 displays | 2 displays |
| Maximum External Resolution | 4096 x 2160 @ 60Hz | 3840 x 2160 @ 30 Hz |
| Memory | ||
| Installed Memory | 8 GB | 4 GB |
| Maximum Memory | 16 GB | — |
| Memory Type | DDR4 | DDR3L SDRAM |
| Memory Speed | 2400 MT/s | 1600 MT/s |
| Memory Form Factor | SO-DIMM | Onboard |
| Memory Slots | 1 slots | — |
| Memory Upgradeable | Yes | No |
| Memory Channels | 2 | Single-channel |
| Storage | ||
| Primary Storage Type | SSD | Flash Storage |
| Storage Capacity | 256 GB | 32 GB |
| Storage Interface | — | eMMC 5.1 |
| Storage PCIe Generation | PCIe 3.0 x4 | — |
| Storage Form Factor | — | Onboard |
| Installed Storage Drives | 1 drives | 1 drives |
| Maximum Storage Drives | — | 1 drives |
| M.2 Storage Slots | — | 0 slots |
| RAID Support | — | No |
| Card Reader | Yes | Yes |
| Card Reader Formats | MMC, SD, SDHC, SDXC | SD; SDHC; SDXC |
| Card Reader Standard | UHS-I / SD-family | SDXC |
| Display | ||
| Display Size | 12.5 inch | 11.6 inch |
| Display Resolution | 1920 x 1080 | 1366 x 768 |
| Resolution Class | FHD | HD |
| Display Technology | IPS LCD | IPS LCD |
| Panel Type | IPS | IPS |
| Refresh Rate | 60 Hz | 60 Hz |
| Display Brightness | 300 nits | 220 nits |
| Contrast Ratio | 700:1 | — |
| Aspect Ratio | 16:9 | 16:9 |
| Display Finish | Anti-glare | Anti-glare |
| Adaptive Sync Technology | — | — |
| Viewing Angle | 170 horizontal / 170 vertical degree | — |
| Camera & Biometrics | ||
| Webcam Resolution | — | 720p HD |
| Webcam Frame Rate | — | 30 fps |
| Camera Features | Fixed focus | Fixed-focus RGB webcam |
| Audio | ||
| Speaker Configuration | Stereo speakers | Stereo speakers |
| Speaker Power | 1.5 x 2 W | — |
| Audio Technology | HD Audio | — |
| Microphone Configuration | Dual-array microphone | Integrated digital microphone |
| Audio Jack | Yes | Yes |
| Keyboard & Input | ||
| Keyboard Type | Spill-resistant | Compact keyboard |
| Keyboard RGB Zones | 0 zones | — |
| Spill-Resistant Keyboard | Yes | Yes |
| Touchpad Type | Buttonless multi-touch clickpad | Multi-touch touchpad |
| Touchpad Material | Mylar surface | — |
| Pointing Stick | Yes | — |
| Wireless & Networking | ||
| Wi-Fi Standard | Wi-Fi 5 | Wi-Fi 5 |
| Wi-Fi IEEE Standard | 802.11ac | IEEE 802.11ac |
| Wi-Fi Bands | 2.4 GHz, 5 GHz | 2.4 GHz; 5 GHz |
| Wi-Fi Spatial Streams | 2x2 | 2x2 |
| Wi-Fi Module | Intel Dual Band Wireless-AC 8265 / 8260 | — |
| Bluetooth Version | — | Bluetooth 4.0 |
| Ethernet | Yes | — |
| Ethernet Speed | 1 GbE | — |
| WWAN | Optional | — |
| SIM Slot | Micro-SIM | — |
| Ports & Expansion | ||
| USB Type-A Port Count | 2 ports | 2 ports |
| USB Type-A Specifications | USB 5Gbps | USB 3.0 |
| USB Type-C Port Count | 1 ports | 0 ports |
| USB Type-C Specifications | USB 5Gbps, USB PD, DisplayPort | — |
| USB4 Port Count | 0 ports | 0 ports |
| Thunderbolt Port Count | 0 ports | 0 ports |
| HDMI Port Count | 1 ports | 1 ports |
| HDMI Version | 1.4b | — |
| DisplayPort Output | via USB-C | — |
| RJ-45 Port Count | 1 ports | 0 ports |
| 3.5 mm Audio Combo Port Count | 1 ports | 1 ports |
| SD Card Slot Count | 1 ports | — |
| microSD Card Slot Count | 0 ports | — |
| Smart Card Reader | Optional | — |
| Security Lock Slot | Yes | Yes |
| Dedicated Docking Connector | Yes | — |
| Internal PCIe Slots | M.2 storage, WLAN and optional WWAN slots | — |
| Battery & Power | ||
| Battery Capacity | — | 45 Wh |
| Battery Cells | — | 3 cells |
| Battery Chemistry | Li-Ion | Lithium-ion |
| Removable Battery | Yes | — |
| Battery Life | — | 12 hours |
| Power Adapter | — | 45 W |
| Power Connector | USB-C or Lenovo slim-tip | Barrel connector |
| USB-C Charging | Yes | — |
| USB Power Delivery Version | USB Power Delivery (revision not stated) | — |
| Maximum USB-C Charging Power | 65 W | — |
| Dimensions & Build | ||
| Width | 305.5 mm | 294 mm |
| Depth | 208.5 mm | 204 mm |
| Thickness | 20.3 mm | 19.2 mm |
| Weight | 1.36 kg | 1.25 kg |
| Chassis Material | Glass-Fiber Reinforced Plastic | Plastic |
| Lid Material | Glass-Fiber Reinforced Plastic | — |
| Base Material | Glass-Fiber Reinforced Plastic | — |
| Hinge Opening Angle | 180 degree | 360 degree |
| MIL-STD Testing | MIL-STD-810G | — |
| IP Rating | No rated ingress protection | Not rated |
| Security & Manageability | ||
| TPM | dTPM 1.2 / 2.0 | Firmware TPM |
| BIOS / UEFI Password Support | Yes | Yes |
| Drive Password Support | Yes | Yes |
| Secure Boot | Yes | Yes |
| Enterprise Manageability | No Intel vPro platform eligibility | — |
| Smart Card Support | Optional | — |
| BIOS Recovery / Self-Healing | — | Standard BIOS recovery |
| Sensors | ||
| Hall Sensor | — | Yes |
| Certifications & Sustainability | ||
| ENERGY STAR | ENERGY STAR 6.1 | — |
| EPEAT | Gold | — |
| RoHS Compliance | Yes | Yes |
| Environment & Warranty | ||
| Operating Temperature | 5 to 35 °C | 5–35 °C °C |
| Operating Humidity | — | 20–80% RH, non-condensing % RH |
| Storage Temperature | — | -20–60 °C °C |
| Warranty | — | 1 years |
| Warranty Type | — | Limited warranty |
ThinkPad X270 and Chromebook C731-C78G share specifications such as Form Factor (Clamshell), Processor Manufacturer (Intel), CPU Architecture (x86-64), CPU Process Node (14 nm).
The main differences: Processor Model (ThinkPad X270: Intel Core i5 7200U 2.5GHz, Chromebook C731-C78G: Intel Celeron Dual Core N3060 1.6GHz); GPU Model (ThinkPad X270: Intel HD Graphics 620, Chromebook C731-C78G: Intel HD Graphics 400); Installed Memory (ThinkPad X270: 8 GB, Chromebook C731-C78G: 4 GB); Storage Capacity (ThinkPad X270: 256 GB, Chromebook C731-C78G: 32 GB).
ThinkPad X270 may suit users who need its differing values, while Chromebook C731-C78G benefits those who need its paired strengths. Review the specs table above before deciding.
