Lenovo ThinkPad X1 Carbon Gen 14 vs Lenovo ThinkPad X1 Carbon Gen 6

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

Better figure, where one is clearly better

ThinkPad X1 Carbon Gen 14 compared with ThinkPad X1 Carbon Gen 6
LenovoThinkPad X1 Carbon Gen 14LenovoThinkPad X1 Carbon Gen 6
Overview
ReleasedMarch 20262018
Display
Screen size14″14″
Resolution1920 × 1200 (better)1920 × 1080
PanelIPS LCD–
Refresh rate60 Hz–
Brightness500 nits (better)300 nits
TouchscreenYesYes
Display typeWUXGA IPS, 16:10; in-cell touch (low power) or on-cell touch with ThinkPad Privacy GuardMaker describes wide-viewing-angle LCD; listed FHD touch display is 300 nits, 700:1 contrast and 72% colour gamut; optional matte WQHD 300-nit or glossy Dolby Vision WQHD 500-nit displays
Colour range100% sRGB72% on standard displays; 100% Adobe RGB on HDR WQHD according to maker datasheet
Screen finishAnti-glareAnti-glare on FHD and standard WQHD; glossy on HDR WQHD
Display features1,500:1 contrast; 85° viewing angles; Eyesafe Certified 2.0; 88.8% screen-to-body ratio; Privacy Guard with Privacy Alert on Privacy Guard models–
Performance
ProcessorIntel Core Ultra 5 325 or Intel Core Ultra 7 356HIntel Core i5-8250U
CPU cores8 or 164
CPU threads8 or 168
GraphicsIntel GraphicsIntel UHD Graphics 620
AI engine (NPU)47 TOPS or 50 TOPS–
Memory32 GB (better)8 GB
Storage256 GB to 1 TB (better)512 GB
CPUCore Ultra 5 325 with 4 P-cores and 4 LP E-cores (12 MB cache); Core Ultra 7 356H with 4 P-cores, 8 E-cores and 4 LP E-cores (18 MB cache)8th-generation quad-core Core i5/i7, with a 7th-generation dual-core i5-7300U also listed in later PSREF; exact i5-8250U/8GB/512GB/FHD touch configuration from Laptop Mag's review narrative
GPUIntegrated Intel Graphics (up to 40 TOPS), shared memory, DirectX 12 UltimateIntegrated Intel UHD Graphics 620 with 8th-generation processors; HD Graphics 620 with i5-7300U
AI engineCopilot+ PC–
Memory typeLPDDR5X-8533, soldered (not upgradable), dual-channel; may run at a lower speed due to platform limits8 or 16 GB soldered LPDDR3-2133 with no sockets; speed reduced for processors with lower memory-controller limits
Storage typeOne M.2 2280 PCIe 5.0 x4 slot; PCIe 4.0 x4 or PCIe 5.0 x4 NVMe SSD up to 2 TB, Opal 2.0Replaceable M.2 SATA or PCIe3.0×4 NVMe SSD; listed 512 GB NVMe configuration from Laptop Mag
CoolingFans; Lenovo quotes up to 20% better heat dissipation and 30 W sustained power–
Battery and size
Battery life (maker's claim)Up to 32.8 hoursUp to 19.3 hours
Battery capacity58 Wh (better)57 Wh
Weight0.977 kg (better)1.13 kg
Thickness14.3 mm (better)15.95 mm
Width × depth312.5 × 215.75 mm323.5 × 217.1 mm
Battery life detail58 Wh Li-ion; MobileMark 30 up to 19.2 hr, JEITA 3.0 up to 18.9 hr video and 38.0 hr idle (Lenovo test with Core Ultra 5 325, 16 GB and WUXGA Privacy Guard touch screen)Integrated 57 Wh lithium-ion battery; maker maximum 19.3 hours MobileMark 2014 in later PSREF, launch press coverage claimed up to 15 hours; headline 1.13 kg is maker starting weight
Charger65 W USB-C (PD 3.0) adapter, including nano and slim GaN versions; offerings vary by country45 W or65 W USB-C adapter, including low-halogen options
Fast chargingRapid Charge to 80% in 1 hour with the 65 W adapter (when off, in standby or hibernating)Up to 80% in one hour with 65 W adapter
MaterialsCarbon fibre top cover and aluminium bottom cover (WUXGA models); MIL-STD-810H testedCarbon/glass-fibre hybrid display cover; magnesium-alloy/PPS hybrid bottom
ColoursBlack; Black FIFA EditionBlack; silver not offered in EMEA
Connections
Ports3 × Thunderbolt 4, USB-A, HDMI, headphone jack2 × USB-A, 2 × Thunderbolt 3, HDMI, microSD slot, headphone jack
Wi-FiWi-Fi 7Intel Dual Band Wireless-AC 8265, 2×2 802.11ac; Wireless-AC 9260 for special bids
Bluetooth5.4Bluetooth 4.1 with AC8265 under Windows; hardware supports 4.2; 5.0 with special-bid AC9260
Webcam5MP with IR720p with ThinkShutter, or combined IR and 720p without ThinkShutter
Operating systemWindowsWindows
Port detail3 × Thunderbolt 4 with USB PD 15–65 W and DisplayPort 2.1; USB-A 5 Gbps (Always On); HDMI 2.1 up to 4K 60 Hz; 3.5 mm headphone/mic combo jack; nano-SIM slot on WWAN modelsTwo USB-A 3.1 Gen 1, one always-on; two USB-C Gen 2 / Thunderbolt 3 with Power Delivery and DisplayPort; HDMI 1.4b, microSD UHS-II, combo audio, Ethernet extension connector and side dock; RJ-45 needs optional ThinkPad Ethernet Extension Adapter Gen 2
External displaysUp to three external displays (four including the built-in); Thunderbolt up to 8K 60 Hz, HDMI up to 4K 60 HzUp to three independent displays; USB-C up to 5120 × 2880 at 60 Hz, HDMI up to 4096 × 2160 at 30 Hz
Keyboard6-row, spill-resistant, backlit; 1.5 mm key travel (1.35 mm on Fn row and G/H/B); Copilot key; TrackPointSix-row spill-resistant backlit keyboard
TrackpadGlass haptic touchpad (80 × 130 mm) or Mylar 3-button trackpad (80 × 120 mm)Glass multi-touch touchpad and TrackPoint
SpeakersStereo 2 W × 2, Dolby AtmosTwo 1 W speakers with Dolby Audio Premium; Dolby Atmos via headphones
MicrophonesDual-microphone array, 360° far-fieldDual-array microphones
BiometricsFingerprint reader in the power button (match-on-chip); IR camera for Windows HelloMatch-on-chip fingerprint reader; optional IR camera; discrete TPM 2.0

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