Dell Latitude 7455 vs Lenovo ThinkPad T490

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Latitude 7455 compared with ThinkPad T490

	DellLatitude 7455	LenovoThinkPad T490
Overview
Released
Released	June 2024	March 2019
Display
Screen size
Screen size	14″	14″
Resolution
Resolution	2560 × 1600 (better)	1920 × 1080
Panel
Panel	IPS LCD	IPS LCD
Refresh rate
Refresh rate	60 Hz	–
Brightness
Brightness	400 nits	400 nits
Touchscreen
Touchscreen	Yes	No
Display type
Display type	14-inch QHD+ (2560 × 1600) IPS touchscreen, anti-glare, 48–60 Hz	Listed low-power FHD IPS panel, 72% NTSC; optional HD TN, standard FHD IPS, FHD touch, Privacy Guard FHD and 2560 × 1440 WQHD IPS with Dolby Vision HDR, 500 nits and 100% Adobe RGB
Pixel density
Pixel density	215.6 ppi	–
Colour range
Colour range	100% sRGB	–
Screen finish
Screen finish	Anti-glare	Anti-glare except glossy WQHD
Display features
Display features	1000:1 contrast; 35 ms response	–
Performance
Processor
Processor	Qualcomm Snapdragon X Plus X1P-64-100 or Qualcomm Snapdragon X Elite X1E-80-100	Intel Core i5-8265U
CPU cores
CPU cores	10 or 12	4
CPU threads
CPU threads	–	8
Graphics
Graphics	Qualcomm Adreno X1-85	Intel UHD Graphics for 8th Generation Intel Processors
AI engine (NPU)
AI engine (NPU)	45 TOPS	–
Memory
Memory	16 GB (better)	8 GB
Storage
Storage	256 GB to 512 GB (better)	256 GB
CPU
CPU	Qualcomm Snapdragon X Plus X1P-64-100 (10 cores, up to 3.4 GHz) or Snapdragon X Elite X1E-80-100 (12 cores, dual-core boost to 4.0 GHz); 15 W, up to 21 W in Ultra Performance mode	8th-generation quad-core Core i5/i7; later 10th-generation configurations outside EMEA; listed 20N2004EGE configuration verified by Notebookcheck; available by March 2019 according to contemporaneous Notebookcheck coverage, ahead of maker's planned May launch
GPU
GPU	Qualcomm Adreno graphics	Listed configuration uses integrated Intel UHD Graphics; optional GeForce MX250 2 GB GDDR5 on other configurations
AI engine
AI engine	Qualcomm Hexagon NPU, up to 45 TOPS; Copilot+ PC	–
Memory type
Memory type	LPDDR5X at 8448 MT/s, soldered; 16 or 32 GB	DDR4-2400; 8 or 16 GB soldered plus one SO-DIMM socket; up to 40 or 48 GB respectively
Storage type
Storage type	One M.2 2230 PCIe Gen 4 NVMe SSD, up to 1 TB	One replaceable M.2 drive; PCIe 3.0 ×4 NVMe for 2280 or ×2 for 2242; SATA 2280 not offered in EMEA; listed 256 GB PCIe NVMe drive (Notebookcheck)
Battery and size
Battery life (maker's claim)
Battery life (maker's claim)	Up to 21 hours	Up to 16.11 hours
Battery capacity
Battery capacity	54 Wh (better)	50 Wh
Weight
Weight	1.44 kg (better)	1.46 kg
Thickness
Thickness	16.9 mm (better)	17.9 mm
Width × depth
Width × depth	314 × 223.75 mm	329 × 227 mm
Battery life detail
Battery life detail	54 Wh 3-cell lithium-ion polymer	Integrated 50 Wh; up to 16.11 hours MobileMark 2014 or 17.8 hours JEITA 2.0; Rapid Charge up to 80% in one hour with 65 W adapter; weight shown for low-power FHD/WQHD, other display options weigh 1.53–1.61 kg
Charger
Charger	65 W USB-C adapter (can be left out in the UK)	45 W or 65 W USB-C adapter
Fast charging
Fast charging	ExpressCharge; 0–80% in one hour, full in two hours	–
Materials
Materials	Aluminium chassis (recycled and low-emissions aluminium)	Glass-fibre reinforced PPS lid and polyamide bottom; magnesium alloy reinforcement in keyboard cover
Colours
Colours	–	Black
Connections
Ports
Ports	2 × USB4, USB-A, microSD slot, headphone jack	2 × USB-A, 2 × USB-C, Thunderbolt, HDMI, Ethernet, microSD slot, headphone jack
Wi-Fi
Wi-Fi	Wi-Fi 7	Intel Wireless-AC 9560, 2×2 802.11ac; Wi-Fi 6 AX201 on later 10th-generation models
Bluetooth
Bluetooth	5.4	Bluetooth 5.1 in current PSREF; earlier Windows configurations reported as 5.0
Webcam
Webcam	1080p with IR	Optional 720p or IR plus 720p hybrid, with ThinkShutter
Operating system
Operating system	Windows	Windows
Port detail
Port detail	2 × USB4 (40 Gbps) USB-C with DisplayPort 2.1 and Power Delivery; 1 × USB 3.2 Gen 1 USB-A; microSD card reader; 3.5 mm headset jack; optional nano-SIM slot	Two USB-A 3.1 Gen 1, USB-C Gen 1 and USB-C Gen 2/Thunderbolt 3 with PD/DisplayPort, HDMI 1.4b, Gigabit Ethernet, microSD reader, combo audio and side dock; optional smart card and nano-SIM
External displays
External displays	Up to 3	Up to three independent displays; HDMI up to 4096 × 2160 at 24 Hz, Thunderbolt up to 4096 × 2304 at 60 Hz
Keyboard
Keyboard	Backlit keyboard with Copilot key, no numeric keypad	Six-row spill-resistant keyboard with optional LED backlight
Trackpad
Trackpad	115 × 80 mm	Mylar multi-touch touchpad and TrackPoint
Speakers
Speakers	Quad speakers (two woofers, two tweeters), 2 W each (3 W and 2.5 W peak)	Stereo speakers, 2 W × 2, Dolby Audio Premium
Microphones
Microphones	Dual-array microphones with AI noise reduction	Dual-array far-field microphones; no-microphone option for special bids
Biometrics
Biometrics	IR camera for Windows Hello face recognition; fingerprint reader in the power button	Optional match-on-chip fingerprint reader or IR camera; discrete TPM 2.0