In depth comparison and review of Lenovo ThinkPad L15 Gen 3 (21C7) 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 L15 Gen 3 (21C7) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
good battery life
adequate performance level
reliable security features
average display quality
limited graphics power
heavier than competitors
no thunderbolt support
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 L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Product Type | Notebook - 180-degree hinge design | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 36.02 cm x 23.7 cm x 1.993 cm | 29.08 cm x 21.145 cm x 2.075 cm |
| Weight | 1.76 kg | 1.4 kg |
| Case Material | Polycarbonate ABS (bottom), polycarbonate ABS (top) | - |
| Colour | Thunder black | Shale black |
| DISPLAY | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Screen Size (Type) | 15.6" - IPS | 11.6" - IPS |
|---|---|---|
| Screen Resolution | 1920 x 1080 (Full HD) | 1366 x 768 (WXGA) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | - |
| Image Brightness | 250 cd/m² | 250 cd/m² |
| Colour Gamut | 45% NTSC | 50% NTSC |
| Features | Anti-glare | Anti-glare, matte, ComfyView, Acer BluelightShield technology, 25 ms response rate |
| PROCESSOR | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| CPU | AMD Ryzen 3 Pro 5475U / 2.7 GHz | Intel N-series N200 |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 3.7 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | L3 - 8 MB | L3 - 6 MB |
| Features | Integrated memory controller | Intel Smart Cache |
| MEMORY | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| RAM | 8 GB (1 x 8 GB) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 64 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 3200 MHz | - |
| Rated Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 2 | - |
| Empty Slots | 1 | - |
| STORAGE | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 128 GB SSD - Kingston |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Graphics Processor (GPU) | AMD Radeon Graphics | Intel UHD Graphics |
|---|---|---|
| Max Monitors Supported | 3 external monitor(s) | - |
| Camera | Yes - 1080p | Yes - HD |
| Camera Features | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera | Privacy shutter, Temporal Noise Reduction |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Codec | Realtek ALC3287 | - |
| Compliant Standards | High Definition Audio, Dolby Audio | - |
| Audio Features | Input: Dolby Voice, far-field | - |
| COMMUNICATIONS | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Wireless | Bluetooth 5.1, 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 | AMD RZ616 - M.2 Card | Intel Wi-Fi 6E AX 211 - M.2 2230 (CNVi) |
| Network Interface | Gigabit Ethernet | - |
| Ethernet Controller | Realtek RTL8111EPV | - |
| Compliant Standards | DASH | - |
| Features | Wake-on-LAN (WOL), dual stream (2x2) | Dual stream (2x2), MU-MIMO |
| BATTERY | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Technology | Lithium polymer | - |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | 50 Wh |
| AC ADAPTER | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Input | AC 100-240 V (50/60 Hz) | - |
|---|---|---|
| Output | 65 Watt | 45 Watt, 5 / 9 / 12 / 15 / 20 V, 3 A |
| INPUT | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | - |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | Multi-gesture touch pad, spill-resistant, precision touchpad, mechanically anchored keys, OceanGlass touchpad, serviceable keyboard design |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Interfaces | USB-C 3.2 Gen 1 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) HDMI (4K support) USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack LAN |
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 (microSD) | Yes (microSD) |
| SOFTWARE | Lenovo ThinkPad L15 Gen 3 (21C7) | 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 - English / Portuguese | Windows 11 Pro Education |
|---|---|---|
| Software Included | Glance by Mirametrix | - |
| MISCELLANEOUS | Lenovo ThinkPad L15 Gen 3 (21C7) | Acer TravelMate B3 11 (TMB311) |
|---|
| Included Accessories | USB-C power adapter | USB-C power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card 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, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS, NVMe password | Administrator password, system password, MIL-STD-810H tested |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified | - |
| SAR Value | - | 1.14 W/kg (body), 1.14 W/kg (head), 1.14 W/kg (limb) |
| Carbon Footprint | 236 kg carbon emissions | - |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 5 °C | - |
| Humidity Range Operating | 8 - 95% | - |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
| Model Number | - | 33 |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
