ASUS releases 24.5-inch Tandem WOLED monitor with 720Hz at 1920×1080, from $1,099

ASUS Republic of Gamers announced on October 28, 2026 that the ROG Swift OLED PG259QWS Ace ($1,099) and the ROG Strix OLED XG259QWPG Ace ($699) are on sale, according to techtimes.com techtimes.comtechtimes.comtechtimes.comOpen source ↗. The PG259QWS Ace is described as the first gaming monitor to deliver 720Hz at native 1920×1080 on an OLED panel. Until now, 720Hz on OLED required dropping to 1280×720. European prices are €1,149 and €729.

The PG259QWS Ace uses a 24.5-inch Tandem WOLED panel from LG Display. LG's own engineers had called exceeding 500Hz a "virtually unbreakable threshold" because picture quality falls sharply above it. LG's answer is its Dynamic Frequency and Resolution (DFR) algorithm, which manages pixel addressing from panel design through the driver IC. ASUS's earlier ROG Swift OLED PG27AQWP-W reached 720Hz only at 1280×720.

Tandem WOLED panel and interface

A Tandem WOLED stacks two complete emissive units in series, joined by a charge generation layer. Each unit carries half the load, so current density per layer is lower and the organic compounds age more slowly. According to ASUS specifications, the design gives 31% higher brightness, 34% larger color volume and 63% longer lifespan than a conventional WOLED panel. The monitor reaches 1,700 nits peak HDR brightness and carries a three-year burn-in warranty. A GaNFET-based thermal management system in the power electronics reduces heat in the driving circuitry.

The 720Hz mode needs DisplayPort 2.1 in UHBR20 mode, which provides 80 Gbps. An uncompressed 1920×1080 signal at 720Hz with 10-bit color needs roughly 25–30 Gbps techtimes.comtechtimes.comtechtimes.comOpen source ↗. HDMI 2.1 (48 Gbps) or an older DisplayPort standard will not give 720Hz at full quality. The 540Hz XG259QWPG Ace has no DisplayPort 2.1.

QD-OLED and WOLED compared

The monitor is only half of the chain: the PC must render 720 or more frames per second. In Counter-Strike 2 at 1920×1080 and low detail, current high-end GPUs can do that, while systems producing 200–400 fps will stay well below the limit. Whether 720Hz gives a measurable advantage over 360Hz or 500Hz remains debated among display researchers and enthusiasts.

On the other side of the market, Samsung Display says it has built the first QD-OLED monitor panel combining 4K resolution with a 360Hz refresh rate. QD-OLED uses a blue organic layer and a quantum dot layer that converts the light to red and green, so each pixel has three subpixels. WOLED uses a white organic layer under color filters with four subpixels: red, green, blue and white. RTINGS reports that Tandem OLED arrived in late 2025 with a four-layer stack and still counts as a WOLED type.