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FeatureX1 Carbon (21KC0046US)
Lenovo
X1 Carbon (21KC0046US)
View Details		UX8407AA-SN429W Copilot+ PC
Asus
UX8407AA-SN429W Copilot+ PC
View Details
Core Performance & Value
Price£2927.44£2399.99
Overall Value Score
18
0
CPU Benchmark Score16,184-
GPU Benchmark Score3,205-
Primary Specifications
Processor--
Graphics--
RAM32 GB16 GB
Storage512 GB1 TB
Display35.6 cm (14")35.6 cm (14")
Panel TypeIPSOLED
Refresh Rate60 Hz144 Hz
Weight--
Battery--
Operating SystemWindows 11 ProWindows 11 Home
Detailed Technical Data
AC adapter frequency-50 - 60 Hz
AC adapter input voltage-100 - 240 V
AC adapter output current-5 A
AC adapter output voltage-20 V
AC adapter power-100 W
AI datatype support on NPUFP16, FP32, Int8-
AI software frameworks supported by NPUDirectML, ONNX RT, OpenVINO, Windows MLOpenVINO, Windows ML, ONNX RT, WebNN
Antenna type2x22x2
Anti-glare screenYes-
Audio chipRealtek ALC3306-
Audio systemDolby AtmosSmart Amp
Battery capacity57 Wh99 Wh
Battery technologyLithium Polymer (LiPo)Lithium-Ion (Li-Ion)
BluetoothYesYes
Bluetooth version5.35.4
Built-in microphoneYesYes
Cable lock slotYes-
Cable lock slot typeKensington-
Card reader integratedNo-
CertificationMIL-STD-810H military test passedUS MIL-STD 810H military-grade standard
Certified refurbished-No
Colour gamut100%100%
Colour name-Moher Gray
Combo headphone/mic portYes-
Compliance certificatesRoHSRoHS
Contrast ratio (typical)1000:11000000:1
Copilot+ PC-Yes
Depth214.8 mm208.6 mm
Discrete graphics cardNoNo
Discrete graphics card modelNot availableNot available
Display back cover material-Ceraluminum
Display brightness400 cd/m²500 cd/m²
Display diagonal35.6 cm (14")35.6 cm (14")
Display number of colours-1.07 billion colours
Display resolution1920 x 1200 pixels2880 x 1800 pixels
Display response rise/fall-0.2 ms
Display surface-Gloss
Efficient cores88
Efficient-core Max Turbo Frequency3.8 GHz3.7 GHz
Efficient-core base frequency1.2 GHz1.6 GHz
Ethernet LANNoNo
Expansion slots-- 2x M.2 2280 PCIe 4.0x4
Face recognition-Yes
Fingerprint readerYes-
Form factorClamshellConvertible (Detachable)
Front cameraYesYes
Front camera HD typeFull HDFull HD
Front camera resolution1920 x 1080 pixels1920 x 1080 pixels
GPU performance up to-40 TOPs
HD typeWUXGA3K
HDMI ports quantity11
HDMI version2.12.1
Height15 mm-
Height (front)-1.96 cm
Height (rear)-2.34 cm
High Dynamic Range (HDR) supported-Yes
High Dynamic Range (HDR) technology-DisplayHDR True Black 1000
Housing materialAluminium, Carbon fibreCeraluminum
Infrared (IR) cameraYesYes
Intel® Thunderbolt 4YesYes
Internal memory32 GB16 GB
Internal memory typeLPDDR5x-SDRAMLPDDR5x-SDRAM
Keyboard backlitYes-
Keyboard languageUS EnglishUK English
Keyboard layout-QWERTY
LED backlightYes-
Low Blue Light technology-Yes
Low Power Efficient-core Base Frequency700 MHz1600 MHz
Low Power Efficient-core Max Turbo Frequency2.1 GHz3.5 GHz
Low Power Efficient-cores24
Market positioning-Home
Maximum display brightness (HDR)-1000 cd/m²
Maximum frequency NPU1.4 GHz-
Maximum internal memory32 GB16 GB
Maximum refresh rate60 Hz144 Hz
Maximum shipping altitude3048 m-
Maximum turbo power57 W80 W
Memory channelsDual-channel-
Memory clock speed6400 MHz-
Memory form factorOn-boardOn-board
Microsoft Copilot-Yes
Mobile network connectionNoNo
Motherboard chipsetIntel SoC-
NPU performance up to-50 TOPs
NVMeYesYes
Native aspect ratio16:1016:10
Neural processor unit (NPU)Intel AI BoostIntel AI Boost
Number of SSDs installed11
Number of battery cells-4
Number of built-in speakers2-
Number of microphones2-
Numeric keypadNoNo
On-board GPU manufacturerIntelIntel
On-board graphics cardYesYes
On-board graphics card family-Intel® Graphics
On-board graphics card modelIntel® GraphicsIntel® Graphics
Operating relative humidity (H-H)8 - 95%-
Operating system architecture64-bit64-bit
Operating system installedWindows 11 ProWindows 11 Home
Operating temperature (T-T)5 - 35 °C-
Optical drive typeNoNo
Panel typeIPSOLED
Password protectionYes-
Password protection typeBIOS, Power on, Supervisor, SSD-
Performance cores24
Performance-core Max Turbo Frequency4.8 GHz4.9 GHz
Performance-core base frequency1.7 GHz2.1 GHz
Pointing deviceThinkPad UltraNavTouchpad
Privacy cameraYes-
Privacy typePrivacy shutter-
Processor base power15 W25 W
Processor boost frequency4.8 GHz4.9 GHz
Processor cache12 MB18 MB
Processor cache typeSmart CacheSmart Cache
Processor cores1216
Processor familyIntel Core Ultra 7Intel Core Ultra 9
Processor generationIntel® Core™ Ultra (Series 1)Intel® Core™ Ultra (Series 3)
Processor manufacturerIntelIntel
Processor model155U386H
Processor socket-FCBGA2540
Processor threads-16
Product colourBlackGrey
Product typeLaptopHybrid (2-in-1)
RGB colour spacesRGBDCI-P3
Ray tracing acceleration-Yes
SSD capacity512 GB1 TB
SSD form factorM.2M.2
SSD interfacePCI Express 4.0PCI Express 4.0
Smart card readerNo-
Sparsity supportYesYes
Speaker power2 W-
Spill-resistant keyboardYes-
Storage mediaSSDSSD
Storage relative humidity (H-H)5 - 95%-
Storage temperature (T-T)5 - 43 °C-
Sustainability certificatesTCO, ENERGY STAR, EPEAT Gold, ErPENERGY STAR
Thunderbolt 4 ports quantity22
Top Wi-Fi standardWi-Fi 6E (802.11ax)Wi-Fi 7 (802.11be)
Total SSDs capacity512 GB1 TB
Total storage capacity512 GB1 TB
TouchscreenNoYes
Trusted Platform Module (TPM)YesYes
Trusted Platform Module (TPM) version2.0-
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2-
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity-1
USB Power Delivery (USB PD)YesYes
USB Sleep-and-ChargeYes-
USB Sleep-and-Charge ports1-
USB Type-C DisplayPort Alternate ModeYesYes
USB Type-C charging port-Yes
WLAN controller manufacturerIntel-
WLAN controller modelIntel Wi-Fi 6E AX211-
Weight1.08 kg1.65 kg
Wi-Fi standardsWi-Fi 6E (802.11ax)Wi-Fi 7 (802.11be)
Width312.8 mm310.1 mm
Windows Hello-Yes
Windows Studio effects supportYesYes