The Asus Zenbook 14 OLED UX3405 is classified as a productivity laptop and keeps a notably slim profile at just 14mm thick, with a footprint of 312mm wide by 220mm deep and a total volume of 960.96cm³. It weighs 1,279g, making it relatively light for its class. The machine includes a backlit keyboard to support use in low-light environments, but does not feature a fanless design or any weather sealing.
The laptop features a 14-inch OLED/AMOLED panel running at a resolution of 1920x1200 pixels, which works out to a pixel density of 161 ppi. Brightness is rated at a typical 500 nits, and the contrast ratio reaches 1,000,000:1, a characteristic inherent to OLED technology. The display refreshes at 60Hz and can drive up to four external screens simultaneously. It does not include a touchscreen or an anti-reflection coating.
The processor runs across 14 cores — six performance cores at 1.4GHz and eight efficiency cores at 0.9GHz — with a turbo ceiling of 4.8GHz and support for 22 threads through multithreading. The chip is built on a 7nm process and supports 64-bit operation. Paired with 16GB of DDR5 RAM running at 8,400MHz across a single memory slot, the system can be configured with up to 96GB. Storage comes in the form of a 1TB NVMe SSD connected over a PCIe 4 interface using flash-based memory. The integrated GPU has a base clock of 300MHz and boosts up to 2,250MHz, with support for DirectX 12 Ultimate.
In PassMark testing, the system scores 24,879 in the multi-core benchmark, while the single-core result comes in at 3,468, reflecting the per-core processing capability of the Intel Core Ultra 7 155H processor.
The laptop's port selection centers on two Thunderbolt 4 ports, which also function as USB 4 40Gbps connections, alongside a single USB 3.2 Gen 1 Type-A port. Video output is handled by one HDMI 2.1 port, while DisplayPort, mini DisplayPort, and VGA outputs are absent. There is no RJ45 ethernet port and no external memory card slot. Wireless connectivity covers Wi-Fi 6E (802.11ax) along with backward-compatible Wi-Fi 6, 5, and 4 standards, and Bluetooth 5. AirPlay is also supported.
The Zenbook 14 OLED UX3405 is equipped with a 75Wh battery and supports sleep-and-charge functionality, allowing connected devices to be charged through the laptop's USB ports even when the system is asleep. It does not use a MagSafe power adapter.
For audio, the laptop includes stereo speakers and a 3.5mm headset jack, though it does not support Dolby Atmos or an S/PDIF output. A front-facing camera is present alongside dual microphones, and the system uses 3D facial recognition for biometric login rather than a fingerprint scanner. Voice commands are not supported. There is no stylus included, and the device lacks motion and location sensors such as a gyroscope, accelerometer, compass, and GPS. An optical disc drive is also absent.
The processor uses a BGA 2049 socket, a clock multiplier of 38, and a thermal design power (TDP) of 28W, with a maximum operating temperature of 110°C. It employs big.LITTLE technology to balance performance and efficiency cores, supports the NX bit for hardware-level security, and carries a 24MB L3 cache across two memory channels with a maximum RAM speed of 7,467MHz. ECC memory is not supported, and the multiplier is locked. Supported instruction sets include MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2. Graphics are handled by the integrated Intel Arc Xe-LPG 128EU, which features 1,024 shading units, 64 texture mapping units, 32 render output units, and 8 execution units, with support for OpenCL 3 and OpenGL 4.6. The overclocked PassMark result stands at 24,880.
