ASUS ROG Zephyrus G14 (2026) GU405 vs Lenovo ThinkPad T490

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ROG Zephyrus G14 (2026) GU405 compared with ThinkPad T490

	ASUSROG Zephyrus G14 (2026) GU405	LenovoThinkPad T490
Overview
Released
Released	2026	March 2019
Display
Screen size
Screen size	14″	14″
Resolution
Resolution	2880 × 1800 (better)	1920 × 1080
Panel
Panel	OLED	IPS LCD
Brightness
Brightness	–	400 nits
Refresh rate
Refresh rate	120 Hz	–
HDR peak brightness
HDR peak brightness	1,100 nits	–
Touchscreen
Touchscreen	No	No
Display type
Display type	ROG Nebula HDR 3K (2880 × 1800) OLED, 16:10, 0.2 ms	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
Colour range
Colour range	100% DCI-P3; Delta E < 1	–
Screen finish
Screen finish	Anti-reflection	Anti-glare except glossy WQHD
Display features
Display features	VESA DisplayHDR True Black 1000; G-SYNC; Pantone Validated; MUX Switch with NVIDIA Advanced Optimus; ambient light sensor	–
Performance
Processor
Processor	Intel Core Ultra 9 386H	Intel Core i5-8265U
CPU cores
CPU cores	16	4
CPU threads
CPU threads	16	8
Graphics
Graphics	NVIDIA GeForce RTX 5070 Laptop GPU, NVIDIA GeForce RTX 5070 Ti Laptop GPU or NVIDIA GeForce RTX 5080 Laptop GPU	Intel UHD Graphics for 8th Generation Intel Processors
AI engine (NPU)
AI engine (NPU)	50 TOPS	–
Memory
Memory	16 GB or 32 GB (better)	8 GB
Storage
Storage	1 TB to 2 TB (better)	256 GB
CPU
CPU	Intel Core Ultra 9 386H, 16 cores, 16 threads, up to 4.9 GHz, 18 MB cache	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	NVIDIA GeForce RTX 5070 (8 GB GDDR7, 115 W in Manual mode), RTX 5070 Ti (12 GB GDDR7, 130 W) or RTX 5080 Laptop GPU (16 GB GDDR7, 130 W)	Listed configuration uses integrated Intel UHD Graphics; optional GeForce MX250 2 GB GDDR5 on other configurations
AI engine
AI engine	Intel NPU, up to 50 TOPS	–
Memory type
Memory type	LPDDR5X-8533 on board, dual-channel; 16 or 32 GB (ASUS's press release lists up to 64 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 PCIe 4.0 NVMe slot; 1 or 2 TB fitted	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)
Cooling
Cooling	ROG Intelligent Cooling with a redesigned vented bottom panel	–
Battery and size
Battery life (maker's claim)
Battery life (maker's claim)	–	Up to 16.11 hours
Battery capacity
Battery capacity	73 Wh (better)	50 Wh
Weight
Weight	1.5 kg	1.46 kg (better)
Thickness
Thickness	18.3 mm	17.9 mm (better)
Width × depth
Width × depth	311 × 220 mm	329 × 227 mm
Battery life detail
Battery life detail	73 Wh, 4-cell Li-ion	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	250 W rectangular-plug adapter; 100 W USB-C power delivery	45 W or 65 W USB-C adapter
Materials
Materials	CNC-milled aluminium chassis	Glass-fibre reinforced PPS lid and polyamide bottom; magnesium alloy reinforcement in keyboard cover
Colours
Colours	Eclipse Grey; Platinum White	Black
Connections
Ports
Ports	Thunderbolt 4, USB-C, 2 × USB-A, HDMI, SD card 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	6.0	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	Thunderbolt 4 (40 Gbps) with DisplayPort 2.1 and 100 W PD; USB 3.2 Gen 2 Type-C with DisplayPort 2.1 and 100 W PD; 2 × USB 3.2 Gen 2 Type-A; HDMI 2.1 FRL; SD card reader (UHS-II, 312 MB/s); 3.5 mm combo jack	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 three independent displays; HDMI up to 4096 × 2160 at 24 Hz, Thunderbolt up to 4096 × 2304 at 60 Hz
Keyboard
Keyboard	Backlit chiclet keyboard, 1-zone RGB, 1.7 mm key travel, Copilot key; 35-zone Slash Lighting on the lid	Six-row spill-resistant keyboard with optional LED backlight
Trackpad
Trackpad	–	Mylar multi-touch touchpad and TrackPoint
Speakers
Speakers	6 speakers (4 dual-force woofers, 2 tweeters), Dolby Atmos, Smart Amp	Stereo speakers, 2 W × 2, Dolby Audio Premium
Microphones
Microphones	Built-in array microphone with AI noise cancelling	Dual-array far-field microphones; no-microphone option for special bids
Biometrics
Biometrics	IR camera for Windows Hello	Optional match-on-chip fingerprint reader or IR camera; discrete TPM 2.0