Acer Swift Air 14 (SFA14-I31) vs Lenovo ThinkPad X1 Carbon Gen 9

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Swift Air 14 (SFA14-I31) compared with ThinkPad X1 Carbon Gen 9
AcerSwift Air 14 (SFA14-I31)LenovoThinkPad X1 Carbon Gen 9
Overview
ReleasedJuly 20262021
Display
Screen size14″14″
Resolution1920 × 12001920 × 1200
PanelIPS LCDIPS LCD
Refresh rate120 Hz–
Brightness350 nits400 nits (better)
TouchscreenNoNo
Display typeWUXGA IPS, 16:10, ComfyView (matte), non-touchListed low-power 400-nit WUXGA IPS display; touch version also available, plus 500-nit touch Privacy Guard WUXGA or 500-nit 3840 × 2400 WQUXGA IPS with DisplayHDR 400
Colour range100% sRGBWUXGA options 100% sRGB; WQUXGA 100% DCI-P3
Screen finishMatteAnti-glare on WUXGA; glossy on WQUXGA
Performance
ProcessorIntel Core 5 320 or Intel Core 7 350Intel Core i7-1165G7
CPU cores64
CPU threads68
GraphicsIntel GraphicsIntel Iris Xe Graphics
AI engine (NPU)16 TOPS or 17 TOPS–
Memory8 GB or 12 GB16 GB (better)
Storage512 GB512 GB
CPUIntel Core 5 320 or Core 7 350 with 2 P-cores and 4 LP E-cores (6 threads)11th-generation Core i5-1135G7/i5-1145G7/i7-1165G7/i7-1185G7; listed i7-1165G7, 16 GB RAM, 512 GB SSD and non-touch FHD+ configuration is the exact unit tested by Laptop Mag
GPUIntegrated Intel Graphics, shared memoryIntegrated Intel Iris Xe Graphics
AI engineIntel NPU up to 17 TOPS; up to 40 platform TOPS–
Memory typeLPDDR5 on board; 8 or 12 GB in the UK (up to 16 GB elsewhere)8, 16 or 32 GB soldered LPDDR4x-4266; no memory sockets
Storage typeM.2 PCIe 4.0 NVMe SSD, 512 GB; upgradeable to 1 TBOne replaceable M.2 2280 SSD; PCIe 4.0 ×4 slot with PCIe NVMe or PCIe 4.0 performance drive options; maker capacity up to 2 TB
Battery and size
Battery life (maker's claim)Up to 21 hoursUp to 21.3 hours
Battery capacity70 Wh (better)57 Wh
Weight1.19 kg1.133 kg (better)
Thickness13.3 mm (better)14.9 mm
Width × depth314 × 222.7 mm315 × 221.6 mm
Battery life detail70 Wh 3-cell Li-ion; up to 21 hr video playback, 16 hr web browsing and 12 hr MobileMark 30 (Acer UK)Integrated 57 Wh lithium-polymer battery; maker maximum 21.3 hours MobileMark 2014, 16.7 hours MobileMark 2018 or 26 hours JEITA 2.0; headline 1.133 kg is maker starting weight, configuration-dependent
Charger100 W maximum power supply45 W or 65 W USB-C adapter; country and configuration dependent
Fast charging50% in 30 minutesUp to 80% in one hour with a 65 W adapter
MaterialsAll-aluminium chassis with CNC diamond-cut coverCarbon-fibre lid and magnesium-alloy bottom
ColoursSage Green; Frost Blue; Blossom Pink; Lilac PurpleBlack paint or black weave finish
Connections
Ports2 × USB4, USB-A, headphone jack2 × USB-A, 2 × Thunderbolt 4, HDMI, headphone jack
Wi-FiWi-Fi 6EIntel Wi-Fi 6 AX201, 2×2 802.11ax
Bluetooth5.3Bluetooth 5.1 in maker PSREF; hardware ready for 5.2 subject to operating-system limits
WebcamFHD with IR720p or combined IR and 720p, both with privacy shutter
Operating systemWindowsWindows
Port detail2 × USB Type-C (USB4 in Acer UK's spec sheet, Thunderbolt 4 on its overview page, "full function" in the press release); USB 3.2 Gen 1 Type-A; 3.5 mm audio jackTwo USB-A 3.2 Gen 1 ports, one always-on; two Thunderbolt 4/USB4 40 Gbit/s USB-C ports with Power Delivery 3.0 and DisplayPort 1.4a; HDMI 2.0 and combo audio; optional nano-SIM for WWAN models
External displays–Native screen plus three external displays; Thunderbolt up to 5K at 60 Hz and HDMI up to 4K at 60 Hz
KeyboardWhite backlit keyboard with Copilot keySix-row spill-resistant backlit keyboard
TrackpadMicrosoft Precision TouchpadGlass multi-touch touchpad and TrackPoint
SpeakersFour speakers, DTS:X UltraTwo 2 W woofers and two 0.8 W tweeters with Dolby Atmos
MicrophonesDual digital microphonesFour-microphone array with 360-degree far-field pickup and Dolby Voice
BiometricsIR camera for Windows Hello; no fingerprint readerMatch-on-chip fingerprint reader integrated into power button; discrete TPM 2.0; optional IR camera and human-presence detection

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