In depth comparison and review of Lenovo ThinkPad X1 Carbon Gen 9 (20XW) and Lenovo Miix 520-12IKB (81CG). 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 Carbon Gen 9 (20XW) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
robust build quality
excellent keyboard comfort
impressive battery life
bright, vivid display
higher price point
limited port selection
average graphics performance
no touchscreen option
Advantages and disadvantages of Lenovo Miix 520-12IKB (81CG) based on its technical characteristics, features, user experience, expert reviews and price level.
versatile 2-in-1 design
responsive touch screen
solid build quality
decent processing power
affordable price
average battery life
heavier than competitors
no thunderbolt support
limited graphics performance
DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Product Type | Ultrabook | Tablet - with detachable keyboard |
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Dimensions (WxDxH) | 31.5 cm x 22.16 cm x 1.49 cm | - |
Dimensions (WxDxH) - tablet | - | 30 cm x 20.5 cm x 0.99 cm |
Dimensions (WxDxH) / Weight Details | - | 30.39 cm x 21.91 cm x 0.6 cm / 380 g - keyboard dock 30 cm x 20.5 cm x 0.99 cm / 880 g - tablet |
Weight | 1.133 kg | 880 g |
Case Material | Carbon fibre, magnesium alloy | Magnesium-aluminum alloy |
Colour | Black paint | Platinum |
DISPLAY | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Screen Size (Type) | 14" - IPS | 12.2" - IPS |
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Touchscreen | - | Yes (10-point multi-touch) |
LCD Backlight Technology | LED backlight | - |
Screen Resolution | 1920 x 1200 (Full HD Plus) | 1920 x 1200 (WUXGA) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:10 | 16:10 |
Image Brightness | 400 cd/m² | 320 cd/m² |
Colour Gamut | 100% sRGB | - |
Features | Anti-glare, Low Blue Light technology, 170° viewing angle, Low Power | Glossy |
PROCESSOR | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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CPU | Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz | Intel Core i5 (8th Gen) 8250U / 1.6 GHz |
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Max Turbo Speed | 4.2 GHz | 3.4 GHz |
Number of Cores | Quad-Core | Quad-Core |
Cache | 8 MB | 6 MB |
Platform Technology | Intel Evo | - |
Features | Integrated memory controller | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0, Intel Smart Cache |
MEMORY | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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RAM | 8 GB (provided memory is soldered) | 4 GB (provided memory is soldered) |
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RAM Type | LPDDR4X SDRAM | DDR4 SDRAM |
Speed | 4266 MHz | 2133 MHz |
Rated Speed | 4266 MHz | 2133 MHz |
STORAGE | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 256 GB SSD M.2 PCIe |
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AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Graphics Processor (GPU) | Intel Iris Xe Graphics | Intel UHD Graphics 620 |
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Memory Allocation Technology | Shared Video Memory (UMA) | - |
Camera | Yes - 720p | Yes |
Resolution | - | 8 Megapixel (rear), 5 Megapixel (front) |
Camera Features | IR camera, Windows Hello, fixed focus, ThinkShutter camera privacy | Rear camera with auto focus, front camera with fixed focus |
Sound | Four speakers, quad array microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3306 | - |
Compliant Standards | High Definition Audio, Dolby Atmos | High Definition Audio, Dolby Audio X2 |
COMMUNICATIONS | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Wireless | NFC, 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
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Wireless Controller | Intel Wi-Fi 6 AX 201 | M.2 Card |
Features | Gigabit Ethernet via optional Ethernet (RJ-45) adapter, dual stream (2x2) | Dual stream (2x2) |
WWAN |
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Generation | WWAN upgradable | - |
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BATTERY | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Technology | Lithium polymer | 2-cell lithium polymer |
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Battery Capacity (Size) | 57 Wh | 39 Wh |
Battery Life | Up to 26 hours | Up to 8 hours |
AC ADAPTER | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 65 Watt | 45 Watt |
INPUT | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Type | Keyboard, TrackPoint, UltraNav | Keyboard, digitizer, touchpad, digital pen |
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Keyboard Backlight | Yes | Yes |
Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad | Multi-touch touchpad |
CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Interfaces | USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
Headphone/microphone combo jack USB-C 3.1 Gen 1 (supports DisplayPort 1.2, VGA, HDMI) USB 3.1 Gen 1 |
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Memory Card Reader | - | Yes (microSD) |
SOFTWARE | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Operating System (OS) | Windows 10 Pro 64-bit Edition - English | Windows 10 Home 64-bit Edition |
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Software Included | - | Microsoft Office (Trial) |
MISCELLANEOUS | Lenovo ThinkPad X1 Carbon Gen 9 (20XW) | Lenovo Miix 520-12IKB (81CG) |
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Dockable | - | Yes |
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Included Accessories | USB-C power adapter | Power adapter, keyboard, Lenovo Active Pen 2 |
Integrated Options | - | G-sensor, hall sensor, gyroscope |
Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
Security Slot Type | Kensington nano security slot | - |
Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
Features | Administrator password, hard drive password, power-on password, RapidCharge, self-healing BIOS | - |
Compliant Standards | RoHS | RoHS |
ENERGY STAR Certified | Yes | - |
EPEAT Compliant | EPEAT Gold | - |
TCO Certified | TCO Certified Notebooks 8 | - |
Manufacturer Warranty | Limited warranty - 3 years - pick-up and return | Limited warranty - 1 year - pick-up and return |