In depth comparison and review of Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) and Lenovo V145-15AST (81MT). 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 X1 Extreme (2nd Gen) (20QV) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
powerful processor performance
excellent keyboard comfort
high-resolution display
advanced security features
heavier than competitors
short battery life
high price point
noisy under load
Advantages and disadvantages of Lenovo V145-15AST (81MT) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
decent processor performance
ample storage capacity
simple design aesthetic
average display quality
limited graphics capability
no backlit keyboard
poor battery life
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.18 cm x 24.57 cm | 37.56 cm x 25.34 cm x 2.27 cm |
| Weight | 1.7 kg | 2.1 kg |
| Case Material | Aluminum, glass-fibre reinforced plastic, carbon fibre reinforced plastic | Polycarbonate ABS |
| Colour | - | Black |
| DISPLAY | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Screen Size (Type) | 15.6" | 15.6" |
|---|---|---|
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | - | 1366 x 768 (HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | - | 200 cd/m² |
| Features | - | Anti-glare |
| PROCESSOR | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| CPU | No CPU | AMD A4 9125 / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | - | 2.6 GHz |
| Number of Cores | - | Dual-Core |
| Cache | - | L2 - 1 MB |
| 64-bit Computing | - | Yes |
| Chipset | Mobile Intel CM246 | - |
| Features | - | Integrated memory controller |
| MEMORY | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| RAM | 0 GB | 4 GB (1 x 4 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 8 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2666 MHz | 1866 MHz |
| Rated Speed | - | 2666 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 1 |
| Empty Slots | 2 | 0 |
| STORAGE | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Main Storage Size (HDD/SSD) | - | 256 GB SSD 2.5" SATA 6Gb/s - Samsung |
|---|---|---|
| Optical Drive | - | DVD-Writer - tray |
| AUDIO & VIDEO | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Graphics Processor (GPU) | - | AMD Radeon R3 |
|---|---|---|
| Camera | Yes | Yes |
| Resolution | - | 0.3 Megapixel |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, microphone |
| Codec | Conexant CX11880 | - |
| Compliant Standards | High Definition Audio, Dolby Audio Premium, Dolby Atmos | High Definition Audio, Dolby Audio |
| COMMUNICATIONS | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 200 | Realtek RTL8821CE - M.2 Card |
| Network Interface | - | Gigabit Ethernet |
| BATTERY | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Technology | Lithium Ion | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 80 Wh | 30 Wh |
| Battery Life | Up to 14 hours | Up to 5 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 135 Watt | 45 Watt, 20 V, 2.25 A |
| INPUT | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Interfaces | USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Lenovo Ethernet extension connector Headphone/microphone combo jack |
2 x USB 3.0 LAN HDMI Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card, SDXC UHS-II Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Operating System (OS) | No operating system | FreeDOS - Dutch / English / French / German / Italian |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Extreme (2nd Gen) (20QV) | Lenovo V145-15AST (81MT) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM 2.0) Security Chip |
| Security Slot Type | Kensington security slot | Kensington mini 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, hard drive password, power-on password |
| Compliant Standards | RoHS | RoHS |
| SAR Value | 0.546 W/kg (body), 0.546 W/kg (limb) | - |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Silver | - |
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