ASUS ROG Swift OLED PG34WCDN 360Hz QD-OLED Ultrawide
As an Amazon Associate and Newegg Affiliate I earn from qualifying purchases made using the “Buy” button at the bottom of this post. Where possible, you'll be redirected to your nearest store. Further information on supporting our work.For some, their ideal monitor combines OLED image characteristics with an immersive ultrawide experience. The ASUS ROG Swift OLED PG34WCDN is a new-generation ultrawide QD-OLED model with various enhancements such as increased brightness, refresh rate – plus improved subpixel layout. The monitor offers the familiar ROG Swift aesthetic, with tripod-style metal stand and various lighting elements – including a logo projection onto the desk. The top and side bezels are dual-stage, with a panel border surrounding the image as well as a thin hard outer part. As usual for an OLED, there’s also an ‘active area’ (overprovisioning of pixels) which allows the image to occasionally shift to help reduce image retention. A ‘Neo Proximity Sensor’ is also included, blacking out the screen if nobody is detected. The OSD (On Screen Display) is controlled by a joystick and shortcut keys beneath the bottom bezel.
A 1800R (fairly gently curved) 34″ Samsung Display QD-OLED panel is adopted with 3440 x 1440 (21:9 ultrawide) resolution and support for a 360Hz refresh rate. The monitor uses an RGB stripe layout for the subpixels, which panel manufacturer Samsung refers to as ‘V-Stripe’. This is designed to massively reduce or eliminate fringing issues caused by the traditional triangle RGB layout of QD-OLEDs. The screen surface is glossy with anti-reflective treatment, including ‘BlackShield’ film. This is designed to improve perceived black level by up to 40% compared to previous generation QD-OLEDs, whilst being 2.5x more scratch-resistant. The monitor supports VRR via Adaptive-Sync and HDMI 2.1 VRR, allowing technologies such as Nvidia ‘G-SYNC Compatible’ and AMD FreeSync Premium Pro to be used, with 48 – 360Hz VRR range plus LFC. A 1.5m:1 static contrast ratio, 178°/178° viewing angles and 10-bit colour are specified. The monitor is ‘flicker-free’, with 1300 cd/m² HDR peak luminance specified – up from the usual 1000 cd/m² for QD-OLED. A 99% DCI-P3 (135% sRGB) coverage is specified, in-line with other QD-OLEDs.
Other points of note include a factory calibration with specified DeltaE ≤2, passively-cooled custom heatsink design and a 0.03ms specified response time. The monitor responds to HDR10 content in a dynamic way, able to put its generous gamut to good use alongside 10-bit colour reproduction and per-pixel illumination. The screen is VESA DisplayHDR True Black 500 certified – requiring higher brightness levels, including full screen white brightness, than the more common True Black 400 certification. HDR settings with stronger brightness peaks are also included if you want stronger bursts of brightness. The stand provides tilt, swivel and height adjustment (110mm or 4.33 inches). It attaches centrally via a quick-release mechanism and can be removed to reveal provision for 100 x 100mm VESA mounting. An ‘Aura RGB’ pixelated RGB lighting element is located to the right of the stand attachment point, as viewed from the rear. The ports face downwards and include; a 3.5mm headphone jack, USB-C (90W PD, DP Alt Mode, upstream data), DP 2.1 (80 Gbps UHBR 20, full bandwidth), 2 HDMI 2.1 ports (48 Gbps, full bandwidth), 3 USB 3.0 ports (plus Type-B upstream) and AC power input (internal power converter). KVM is supported and the 3-year warranty included with the monitor covers OLED burn-in for peace of mind.
Further details can be found on the manufacturer’s website. The monitor is due Q1 2026, pricing TBC.
