In depth comparison and review of Lenovo ThinkPad X280 (20KF) and ASUS ROG Strix 15 (GL503GE). 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.
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 30.77 cm x 20.98 cm x 1.78 cm | 38.4 cm x 26.2 cm x 2.3 cm |
| Weight | 1.26 kg | 2.5 kg |
| Case Material | Glass-fibre, magnesium-aluminum alloy | Aluminum, polycarbonate |
| Colour | Black | Black |
| DISPLAY | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Screen Size (Type) | 12.5" | 15.6" - TN |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | - | 120 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 220 cd/m² | 300 cd/m² |
| Colour Gamut | - | 130.56% sRGB, 94% NTSC, 98.38% Adobe RGB |
| Features | Anti-glare | Anti-glare |
| PROCESSOR | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| CPU | Intel Core i5 (8th Gen) 8250U / 1.6 GHz | Intel Core i7 (8th Gen) 8750H / 2.2 GHz |
|---|---|---|
| Max Turbo Speed | 3.4 GHz | 4.1 GHz |
| Number of Cores | Quad-Core | 6-core |
| Cache | 6 MB | 9 MB |
| 64-bit Computing | Yes | Yes |
| Chipset | - | Mobile Intel HM370 |
| Features | Integrated memory controller | Intel Turbo Boost Technology 2.0 |
| MEMORY | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | - | 32 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | 2666 MHz |
| Rated Speed | 2400 MHz | - |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 2 |
| Empty Slots | - | 1 |
| STORAGE | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe - TCG Opal Encryption, NVM Express (NVMe) - Samsung | 128 GB SSD M.2 PCIe - NVM Express (NVMe) |
|---|---|---|
| Secondary Storage | - | 1 TB HDD SATA 6Gb/s / 5400 rpm |
| AUDIO & VIDEO | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | NVIDIA GeForce GTX 1050 Ti |
|---|---|---|
| Video Memory | - | 4 GB GDDR5 SDRAM |
| Gaming | - | Yes |
| Camera | Yes - 720p | Yes - 720p |
| Camera Features | ThinkShutter camera privacy | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, array microphone |
| Codec | Realtek ALC3287 | - |
| Compliant Standards | High Definition Audio, Dolby Audio Premium | - |
| COMMUNICATIONS | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | Bluetooth, 802.11a/b/g/n/ac |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 8265 - M.2 Card | - |
| Network Interface | - | Gigabit Ethernet |
| Features | Gigabit Ethernet via optional Ethernet (RJ-45) adapter | - |
| WWAN |
|---|
| Generation | 4G | - |
|---|---|---|
| Technology | LTE | - |
| Controller | FIBOCOM L830-EB - M.2 Card | - |
| BATTERY | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Technology | 6-cell Lithium Ion | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 48 Wh | 64 Wh |
| Battery Life | Up to 16.6 hours | - |
| AC ADAPTER | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 20 V, 3.25 A | 150 Watt, 19.5 V, 7.7 A |
| INPUT | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Keyboard Backlight | - | Yes (RGB) |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | 4-zone illumination |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Slots | Nano-SIM card | - |
|---|---|---|
| Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 1 USB-C 3.1 Gen 2 (supports Thunderbolt 3) HDMI Lenovo Ethernet extension connector Dock Headphone/microphone combo jack |
Headphone/microphone combo jack 3 x USB 3.1 HDMI LAN USB-C 3.1 Gen 2 USB 2.0 Mini DisplayPort |
| Memory Card Reader | Yes (microSD) | Yes |
| SOFTWARE | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition | Windows 10 Home 64-bit Edition |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X280 (20KF) | ASUS ROG Strix 15 (GL503GE) |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | USB-C power adapter | Power adapter |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | - |
| Security Slot Type | Kensington mini 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, RapidCharge, MIL-STD-810G tested | System password, hard drive password |
| Compliant Standards | RoHS | - |
| ENERGY STAR Certified | Yes | Yes |
| Manufacturer Warranty | Limited warranty - 3 years - pick-up and return | - |
| Model Number | - | EN034T |
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