In depth comparison and review of Lenovo ThinkPad T15g Gen 2 (20YS) and Lenovo ThinkBook 14 G4 IAP (21DH). 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 T15g Gen 2 (20YS) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful professional graphics
robust build quality
high-resolution display
advanced cooling system
expandable memory options
heavier than competitors
expensive base model
average battery life
limited color accuracy
Advantages and disadvantages of Lenovo ThinkBook 14 G4 IAP (21DH) based on its technical characteristics, features, user experience, expert reviews and price level.
efficient multitasking capabilities
solid build quality
affordable price point
adequate connectivity options
compact and portable
average display quality
modest battery life
limited graphics performance
no thunderbolt support
| DESIGN AND DIMENSIONS | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 37.54 cm x 25.23 cm x 3.145 cm | 32.3 cm x 21.8 cm x 1.79 cm |
| Weight | 2.87 kg | 1.4 kg |
| Case Material | Glass-fibre, polyphenylene sulfide, polyamide | Aluminium (top), aluminium (bottom) |
| Colour | Black | Dual tone mineral grey |
| DISPLAY | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 3840 x 2160 (Ultra HD 4K) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 600 cd/m² | 300 cd/m² |
| Colour Gamut | 100% Adobe RGB | 45% NTSC |
| Features | Anti-glare, HDR 400 compatible, 170° viewing angle, Dolby Vision | Anti-glare, 170° viewing angle |
| PROCESSOR | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| CPU | Intel Core i7 (11th Gen) 11800H / 2.3 GHz | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.6 GHz | 4.4 GHz |
| Number of Cores | 8-core | 10-core |
| Cache | 24 MB | 12 MB |
| Chipset | Intel WM590 | - |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| RAM | 32 GB (2 x 16 GB) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 128 GB | 40 GB |
| RAM Type | DDR4 SDRAM - non-ECC | DDR4 SDRAM |
| Speed | 3200 MHz | 3200 MHz |
| Rated Speed | 3200 MHz | 3200 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 4 | 1 |
| Empty Slots | 2 | 1 |
| STORAGE | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Main Storage Size (HDD/SSD) | 1 TB SSD M.2 2280 PCIe 4.0 - TCG Opal Encryption 2, NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe) |
|---|---|---|
| RAID Level | RAID 0, RAID 1 | - |
| AUDIO & VIDEO | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 3070 / Intel UHD Graphics | Intel Iris Xe Graphics |
| Max Monitors Supported | 4 external monitor(s) | 3 external monitor(s) |
| Video Memory | 8 GB GDDR6 SDRAM | - |
| Camera | Yes - 720p | Yes - 1080p |
| Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | Privacy shutter, fixed focus |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3306 | Realtek ALC3287 |
| Compliant Standards | High Definition Audio, Dolby Atmos | High Definition Audio, Dolby Audio |
| COMMUNICATIONS | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6E AX 210 | M.2 Card |
| Network Interface | 2.5 Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Intel I225-V | - |
| Features | Wake-on-LAN (WOL), dual stream (2x2) | Wake-on-LAN (WOL), dual stream (2x2) |
| BATTERY | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 94 Wh | 45 Wh |
| Battery Life | Up to 11 hours | Up to 8 hours |
| Battery Run Time | - | Local video (1080p) playback time (150 nits): up to 8 hours |
| AC ADAPTER | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 230 Watt | 65 Watt |
| INPUT | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | Spill-resistant, multi-touch touchpad, buttonless touchpad, precision touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Slots | 3 x M.2 Card (2 free) | 2 x M.2 (PCI Express 4.0 x4) (1 free) |
|---|---|---|
| Interfaces | USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI Headphone/microphone combo jack LAN |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB-C (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
| Memory Card Reader | Yes (SD Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - English | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | Microsoft Office (Trial) |
| MISCELLANEOUS | Lenovo ThinkPad T15g Gen 2 (20YS) | Lenovo ThinkBook 14 G4 IAP (21DH) |
|---|
| Included Accessories | Power adapter | USB-C slim wall mount power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader | Firmware Trusted Platform Module (TPM 2.0) Security Chip, 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 | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS | Administrator password, hard drive password, power-on password, Rapid Charge Pro |
| Compliant Standards | RoHS, TCG Certified | RoHS, Energy-Related Products (ErP) Lot 6, TUV Rheinland Low Blue Light (Software Solution) |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | EPEAT Gold | EPEAT Gold |
| TCO Certified | TCO Certified Notebooks 8 | - |
| Max Operating Temperature | 35 °C | 35 °C |
| Min Operating Temperature | 5 °C | 5 °C |
| Humidity Range Operating | 8 - 95% | 8 - 95% |
| Manufacturer Warranty | Base warranty - 3 years - pick-up and return Base warranty - battery - 1 year Extended warranty - 3 years - on-site |
Limited warranty - 1 year - pick-up and return |
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