In depth comparison and review of Lenovo ThinkPad T590 (20N4) and Lenovo ThinkPad E15 Gen 4 (21E6). 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 T590 (20N4) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
impressive battery life
solid performance
good security features
heavier than competitors
average display brightness
limited graphics power
noisy under load
Advantages and disadvantages of Lenovo ThinkPad E15 Gen 4 (21E6) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
comfortable keyboard
good security features
reasonable price
average display quality
moderate battery life
limited graphics capability
no thunderbolt support
| DESIGN AND DIMENSIONS | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.58 cm x 24.8 cm x 1.91 cm | 36.5 cm x 24 cm x 1.89 cm |
| Weight | 1.75 kg | 1.7 kg |
| Case Material | Glass-fibre, polyphenylene sulfide, polyamide | Aluminium (top), polycarbonate ABS (bottom) |
| Colour | Black | Black |
| DISPLAY | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | - | 1920 x 1080 (Full HD) |
| Widescreen | - | Yes |
| Image Aspect Ratio | - | 16:9 |
| Image Brightness | - | 300 cd/m² |
| Colour Gamut | - | 45% NTSC |
| Features | - | Anti-glare, 170° viewing angle |
| PROCESSOR | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| CPU | No CPU | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | - | 4.4 GHz |
| Number of Cores | - | 10-core |
| Cache | - | 12 MB |
| Features | - | Integrated memory controller |
| MEMORY | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| RAM | 0 GB | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 48 GB | 40 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | - | 3200 MHz |
| Rated Speed | - | 3200 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 1 | 1 |
| Empty Slots | 1 | 1 |
| STORAGE | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Main Storage Size (HDD/SSD) | - | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Graphics Processor (GPU) | - | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 2 external monitor(s) |
| Camera | - | Yes - 1080p |
| Camera Features | - | Privacy shutter, IR camera, Windows Hello, fixed focus |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3287 | Realtek ALC3287 |
| Compliant Standards | High Definition Audio, Dolby Audio Premium | High Definition Audio, Dolby Audio |
| Audio Features | - | Harman-branded |
| COMMUNICATIONS | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Wireless | - | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 |
|---|---|---|
| Wireless Controller | - | M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | - | Intel I219-V |
| Features | - | Wake-on-LAN (WOL), dual stream (2x2) |
| BATTERY | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Technology | Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | 57 Wh |
| Battery Life | - | Up to 15.6 hours |
| AC ADAPTER | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | - | 65 Watt |
| INPUT | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| 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 T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) HDMI LAN Headphone/microphone combo jack Dock |
USB 2.0 USB 3.2 Gen 1 (Always On) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (microSD) | - |
| SOFTWARE | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Operating System (OS) | No operating system | Windows 11 Pro - English |
|---|
| MISCELLANEOUS | Lenovo ThinkPad T590 (20N4) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | USB-C power adapter | USB-C power adapter |
| Security | Trusted Platform Module (TPM 2.0) Security Chip | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | Kensington 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 | Administrator password, power-on password, MIL-STD-810H tested, self-healing BIOS, NVMe password |
| Compliant Standards | RoHS | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Low Blue Light (Software Solution) |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | EPEAT Gold | EPEAT Gold |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | - | Base warranty - 1 year - pick-up and return Extended warranty - 1 year - on-site |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
