In depth comparison and review of Lenovo ThinkPad X1 Extreme Gen 5 (21DE) and Acer TravelMate B3 11 (TMB311). 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 Gen 5 (21DE) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful intel processors
robust build quality
excellent 4k display
advanced security features
wide connectivity options
high price point
heavier than competitors
average battery life
loud under load
Advantages and disadvantages of Acer TravelMate B3 11 (TMB311) based on its technical characteristics, features, user experience, expert reviews and price level.
durable build quality
affordable price point
efficient battery life
robust security features
lightweight design
mediocre display quality
limited storage capacity
basic graphics performance
slow processor speed
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 35.95 cm x 25.38 cm x 1.79 cm | 29.08 cm x 21.145 cm x 2.075 cm |
| Weight | 1.88 kg | 1.4 kg |
| Case Material | Aluminium (bottom), carbon fibre (top) | - |
| Colour | Black paint | Shale black |
| DISPLAY | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Screen Size (Type) | 16" - IPS | 11.6" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 2560 x 1600 (WQXGA) | 1366 x 768 (WXGA) |
| V-Sync Rate at Max Res. | 165 Hz | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | - |
| Image Brightness | 500 cd/m² | 250 cd/m² |
| Colour Gamut | 100% sRGB | 50% NTSC |
| Features | Anti-glare, 178° viewing angle, Low Blue Light technology, X-Rite Pantone factory color calibration | Anti-glare, matte, ComfyView, Acer BluelightShield technology, 25 ms response rate |
| PROCESSOR | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| CPU | Intel Core i7 (12th Gen) 12700H / 2.3 GHz | Intel N-series N200 |
|---|---|---|
| Max Turbo Speed | 4.7 GHz | 3.7 GHz |
| Number of Cores | 14-core | Quad-Core |
| Cache | 24 MB | L3 - 6 MB |
| Features | Integrated memory controller | Intel Smart Cache |
| MEMORY | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| RAM | 16 GB (1 x 16 GB) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 64 GB | - |
| RAM Type | DDR5 SDRAM | LPDDR5 SDRAM |
| Speed | 4800 MHz | - |
| Rated Speed | 4800 MHz | - |
| Form Factor | SO-DIMM 262-pin | - |
| Slots Qty | 2 | - |
| Empty Slots | 1 | - |
| STORAGE | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance | 128 GB SSD - Kingston |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Multi-GPU Configuration | 1 single GPU card / integrated GPU | - |
|---|---|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 3050 Ti / Intel Iris Xe Graphics | Intel UHD Graphics |
| Max Monitors Supported | 4 external monitor(s) | - |
| Video Memory | 4 GB GDDR6 SDRAM | - |
| Camera | Yes - 1080p | Yes - HD |
| Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | Privacy shutter, Temporal Noise Reduction |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Codec | Realtek ALC3306 | - |
| Compliant Standards | High Definition Audio, Dolby Audio Premium, Dolby Voice | - |
| COMMUNICATIONS | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Wireless | NFC, Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6E AX 211 | Intel Wi-Fi 6E AX 211 - M.2 2230 (CNVi) |
| Features | Dual stream (2x2) | Dual stream (2x2), MU-MIMO |
| BATTERY | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Technology | Lithium polymer | - |
|---|---|---|
| Battery Capacity (Size) | 90 Wh | 50 Wh |
| AC ADAPTER | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Input | AC 100-240 V (50/60 Hz) | - |
|---|---|---|
| Output | 170 Watt | 45 Watt, 5 / 9 / 12 / 15 / 20 V, 3 A |
| INPUT | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad | Multi-gesture touch pad, spill-resistant, precision touchpad, mechanically anchored keys, OceanGlass touchpad, serviceable keyboard design |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Slots | 2 x M.2 (PCI Express 4.0 x4) (1 free) | - |
|---|---|---|
| Interfaces | USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
HDMI 2 x USB 3.2 Gen 1 USB-C 3.2 Gen 1 (supports DisplayPort Alt Mode) (DC-In combo, Power Delivery) LAN Headphone/microphone combo jack |
| Memory Card Reader | Yes (SD Express Card) | Yes (microSD) |
| SOFTWARE | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - German | Windows 11 Pro Education |
|---|---|---|
| Software Included | Glance by Mirametrix | - |
| MISCELLANEOUS | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) | Acer TravelMate B3 11 (TMB311) |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | - |
| Security Slot Type | Kensington nano 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, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0, certificate based BIOS authentication | Administrator password, system password, MIL-STD-810H tested |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TÜV Rheinland Low Blue Light Method 2 | - |
| SAR Value | - | 1.14 W/kg (body), 1.14 W/kg (head), 1.14 W/kg (limb) |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Gold | - |
| TCO Certified | TCO Certified Notebooks 9 | - |
| 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 |
Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
| Model Number | - | 33 |
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