Sub‑1kg Laptops With Serious GPUs: ASUS vs Gigabyte

What Defines a Sub‑1kg Portable Workstation Today?

A modern sub‑1kg laptop aimed at professionals is no longer just an email and spreadsheet machine; it is a highly portable workstation that combines thin‑and‑light design, strong CPU and GPU performance, high‑resolution displays, and long battery life to support demanding creative projects, AI workloads, and heavy multitasking without depending on the cloud. Ultra‑lightweight designs under 1kg were once limited to basic integrated graphics, but new chips and cooling systems are changing that balance. ASUS and Gigabyte now show two paths: an ultra‑light business notebook that claims desktop‑class graphics in a 0.99kg shell, and a thin AI workload laptop with RTX 5070 graphics aimed at creators and coders who still want mobility. Together, they mark a shift where weight, performance, and battery life can coexist instead of forcing users to compromise.

ASUS ExpertBook Ultra: Sub‑1kg Laptop With Arc B390 Power

The ASUS ExpertBook Ultra targets professionals who want a true portable workstation under 1kg. Weighing 0.99kg and measuring 10.9mm at its thinnest point, it uses Intel Arc B390 integrated graphics that ASUS claims can outperform an NVIDIA RTX 4050 laptop GPU at 30W TGP. That moves it beyond basic office duties into image and video editing, local AI tools, data dashboards and heavier multitasking. The 14‑inch 3K Tandem OLED touchscreen (2880 x 1800) with 30–120Hz variable refresh and up to 1,400 nits HDR brightness makes it suitable for color‑sensitive work. A 70Wh battery is rated for up to 26 hours, and ASUS says the CPU can sustain 50W without throttling, important for long renders or data processing. Security features, Copilot+ support and ASUS’ MyExpert AI suite round it out as a business‑first yet graphics‑capable machine.

Gigabyte AERO X16: Thin RTX 5070 Laptop for AI Workloads

Gigabyte’s AERO X16 heads in a different direction, prioritising higher discrete GPU performance in a still‑portable chassis. This RTX 5070 laptop scales up to an NVIDIA GeForce RTX 5070 Laptop GPU with 12GB VRAM and 85W Max TGP, paired with up to an AMD Ryzen AI 9 465 processor. Gigabyte describes it as engineered for next‑generation AI workloads, with enough on‑device power to run larger local LLMs and improve DLSS 4.5 experiences in AAA titles. At 16.75mm thick and 1.9kg, it is heavier than a sub‑1kg laptop but much lighter than many traditional gaming rigs. The 16:10 2.5K 165Hz IPS panel with 100% sRGB and Pantone Validated color calibrations targets creators who need smooth motion and accurate color. Gigabyte claims up to 14 hours of battery life, making it a practical AI workload laptop rather than a plug‑bound desktop replacement.

Weight vs. Performance: Two Paths to a Portable Workstation

Comparing these machines shows two distinct strategies for building a portable workstation. The ExpertBook Ultra prioritises extreme portability, staying under the 1kg mark while pushing integrated Intel Arc B390 graphics to what ASUS claims is RTX 4050‑class performance at 30W. It suits professionals who fly often, work in tight spaces, and still need GPU‑accelerated tasks like AI‑assisted presentations or light video editing. The AERO X16, by contrast, accepts a 1.9kg weight to deliver an RTX 5070 Laptop GPU and 100W thermal capacity through its WINDFORCE Infinity cooling. That makes it a better fit for users who need stronger real‑time 3D, larger LLMs, or more demanding gaming. In both cases, the message is clear: ultra‑portable now overlaps with lightweight gaming laptop territory, letting users carry serious graphics without hauling a full gaming rig.

Battery Life, Displays and AI Features for Creators

Battery life and display quality are central to these systems’ appeal. ASUS rates the ExpertBook Ultra’s 70Wh pack for up to 26 hours, ideal for travellers who need an all‑day business machine that can still run local AI and creative workloads. Gigabyte claims up to 14 hours for the AERO X16, notable given its RTX 5070 Laptop GPU and 2.5K 165Hz panel. For screen quality, ASUS offers a 3K Tandem OLED touchscreen with low‑reflection Gorilla Glass Matte, while Gigabyte answers with a 16:10 2.5K IPS display with 100% sRGB coverage and Pantone validation. Both are Copilot+ PCs and add their own AI layers: ASUS with MyExpert AI (including AI ExpertMeet), and Gigabyte with its GiMATE AI Agent, GiMATE Creator and GiMATE Coder tools. For creators, developers and analysts, these AI‑aware, ultra‑portable designs bring desktop‑style acceleration into travel‑friendly machines.