In depth comparison and review of Lenovo ThinkPad A275 (20KD) and Lenovo ThinkPad T14 Gen 4 (21K3). 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 T14 Gen 4 (21K3) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
powerful processor options
good battery life
impressive security features
heavier than competitors
average display brightness
limited color options
pricey base model
| DESIGN AND DIMENSIONS | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 30.55 cm x 20.85 cm x 2.03 cm | 31.77 cm x 22.69 cm x 1.79 cm |
| Weight | 1.36 kg | 1.39 kg |
| Case Material | Glass-fibre reinforced plastic | Carbon fibre hybrid (top), polyphenylene sulfide (bottom) |
| Colour | Black | Thunder black |
| DISPLAY | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Screen Size (Type) | 12.5" - TN | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1200 (WUXGA) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 220 cd/m² | 300 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | Anti-glare | Anti-glare |
| PROCESSOR | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| CPU | AMD A10 PRO-8730B / 2.4 GHz | AMD Ryzen 5 Pro 7540U / 3.2 GHz |
|---|---|---|
| Max Turbo Speed | 3.3 GHz | 4.9 GHz |
| Number of Cores | Quad-Core | 6-core |
| Cache | 2 MB | L3 - 16 MB |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| RAM | 4 GB (1 x 4 GB) | 16 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 16 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR5X SDRAM |
| Speed | 1866 MHz | 6400 MHz |
| Rated Speed | 2400 MHz | 6400 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD 2.5" (7 mm) SATA | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Graphics Processor (GPU) | AMD Radeon R5 | AMD Radeon 740M |
|---|---|---|
| Max Monitors Supported | - | 3 external monitor(s) |
| Camera | Yes - 720p | Yes - 1080p |
| Camera Features | - | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera, Ultrasonic Human Presence Detection |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3268 | Realtek ALC3287 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio |
| Audio Features | - | Input: Dolby Voice, 360° far-field |
| COMMUNICATIONS | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Realtek RTL8822BE - M.2 Card | MediaTek RZ616 |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Realtek RTL8111EPV | Realtek RTL8111EPV |
| Compliant Standards | - | DASH |
| Features | - | Wake-on-LAN (WOL), dual stream (2x2) |
| WWAN |
|---|
| Generation | 4G | 4G upgradable |
|---|---|---|
| Technology | LTE Advanced | - |
| Controller | Sierra Wireless EM7455 - M.2 Card | - |
| BATTERY | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Technology | 3-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Installed Qty | 2 | - |
| Battery Capacity (Size) | 23 Wh | 52.5 Wh |
| Battery Life | Up to 10.1 hours | - |
| AC ADAPTER | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt | 65 Watt |
| INPUT | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | - | Yes |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Slots | 1 x Micro-SIM card (1 free) | - |
|---|---|---|
| Interfaces | USB 3.1 Gen 1/USB 3.0 USB 3.1 Gen 1/USB 3.0 (Always On) USB-C 3.1 Gen 1 HDMI LAN Headphone/microphone combo jack |
USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 USB-C 3.2 Gen 2 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI (4K support) LAN Headphone/microphone combo jack |
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | - |
| SOFTWARE | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Operating System (OS) | FreeDOS | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | Glance by Mirametrix |
| MISCELLANEOUS | Lenovo ThinkPad A275 (20KD) | Lenovo ThinkPad T14 Gen 4 (21K3) |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Security | Trusted Platform Module (TPM 2.0) Security Chip | Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, fingerprint reader, smart card 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 | Administrator password, hard drive password, power-on password, MIL-STD-810G tested | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication |
| Navigation Receiver | GPS | - |
| Compliant Standards | RoHS | RoHS, Energy-Related Products (ErP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 |
| ENERGY STAR Certified | Yes | - |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | - | Base warranty - 3 years - pick-up and return Base warranty - battery - 1 year Extended warranty - 3 years - on-site Extended warranty - 1 year - on-site - response time: next business day |
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