In depth comparison and review of Acer Aspire 5 (A517-51G) and Lenovo ThinkPad T14s Gen 4 (21F9). 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 T14s Gen 4 (21F9) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
impressive battery life
powerful processor options
bright display
higher price point
limited graphics performance
no OLED option
heavier than competitors
| DESIGN AND DIMENSIONS | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 42.332 cm x 28.991 cm x 2.825 cm | 31.75 cm x 22.69 cm x 1.69 cm |
| Weight | 3 kg | 1.26 kg |
| Case Material | Polycarbonate, ABS plastic | Aluminium (bottom), carbon fibre hybrid (top) |
| Colour | Obsidian black | Deep black |
| DISPLAY | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Screen Size (Type) | 17.3" | 14" - IPS |
|---|---|---|
| Touchscreen | - | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (WUXGA) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | 300 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | Anti-glare, ComfyView, 25 ms response rate | Anti-glare, on-cell touch technology |
| PROCESSOR | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| CPU | Intel Core i5 (8th Gen) 8250U / 1.6 GHz | AMD Ryzen 5 Pro 7540U / 3.2 GHz |
|---|---|---|
| Max Turbo Speed | 3.4 GHz | 4.9 GHz |
| Number of Cores | Quad-Core | 6-core |
| Cache | 6 MB | L3 - 16 MB |
| 64-bit Computing | Yes | - |
| Features | Intel Turbo Boost Technology 2.0 | Integrated memory controller |
| MEMORY | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| RAM | 8 GB (1 x 4 GB + 4 GB (soldered)) | 16 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | LPDDR5X SDRAM |
| Speed | - | 6400 MHz |
| Rated Speed | - | 7500 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD - Kingston | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption - Kioxia |
|---|---|---|
| Secondary Storage | 1 TB HDD SATA / 5400 rpm - HGST | - |
| Optical Drive | DVD-Writer - tray | - |
| AUDIO & VIDEO | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Graphics Processor (GPU) | NVIDIA GeForce MX150 | AMD Radeon 740M |
|---|---|---|
| Max Monitors Supported | - | 3 external monitor(s) |
| Video Memory | 2 GB GDDR5 SDRAM | - |
| Camera | Yes - HD | Yes |
| Resolution | - | 5 Megapixel |
| Camera Features | - | Privacy shutter, Windows Hello, fixed focus, Discrete IR, Ultrasonic Human Presence Detection |
| Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | - | High Definition Audio, Dolby Audio |
| Audio Features | Acer TrueHarmony technology | Input: Dolby Voice, 360° far-field |
| COMMUNICATIONS | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Wireless | Bluetooth 4.0, 802.11a/b/g/n/ac | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | - | Qualcomm NFA725A |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Features | Wake-on-LAN (WOL) | - |
| BATTERY | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Technology | 4-cell | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 3320 mAh | 57 Wh |
| AC ADAPTER | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19 V | 65 Watt |
| INPUT | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | Multi-gesture touch pad, Acer FineTip keyboard, precision touchpad | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Interfaces | 2 x USB 2.0 USB 3.0 HDMI LAN USB-C 3.1 Gen 1 Headphone/microphone combo jack |
USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 (Always On) 2 x USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI (4K support) Headphone/microphone combo jack LAN (on supplied adapter) |
|---|---|---|
| Memory Card Reader | Yes (SD Card) | - |
| SOFTWARE | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence |
|---|---|---|
| Software Included | - | Glance by Mirametrix |
| MISCELLANEOUS | Acer Aspire 5 (A517-51G) | Lenovo ThinkPad T14s Gen 4 (21F9) |
|---|
| Included Accessories | Power adapter | USB-C power adapter, Lenovo USB-C to Ethernet Adapter |
|---|---|---|
| Security | - | Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, fingerprint reader |
| Security Slot Type | Kensington security slot | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | HDCP Compliant | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication |
| 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% |
| Model Number | 55NN | - |
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