GoKawiilThe Asus ROG Swift PG34WCDN is one of the brightest, sharpest and quickest OLEDs you can buy. Among 21:9 monitors, it has the lowest input lag and quickest panel response. And it’s a premium package that delivers on the “you never regret buying the best” mantra.
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A 34-inch 21:9 ultra-wide WQHD monitor is the go-to format for immersive gaming without the large desktop footprint demanded by a television or jumbo monitor. While many of the best gaming monitors in this category are OLED, they give up a few things to traditional 16:9 flat panels, mainly in the category of refresh rate. 360 Hz and 500 Hz OLEDs have been available for a while, but the WQHD genre has remained at 240 Hz, until now.
Asus recently debuted its latest ROG Swift display, the PG34WCDN. It runs at 360 Hz but that’s not all. It also boasts a large color gamut courtesy of a Quantum Dot Layer and RGB Stripe OLED tech. That second moniker means sharper, brighter, and smoother imagery. You also get Adaptive-Sync, VESA DisplayHDR True Black 500, HDR10, and the usual suite of ROG goodies in the box, along with slick styling and LED lighting. Let’s take a look.
Asus ROG Swift PG34WCDN Specs
Swipe to scroll horizontally Panel Type / Backlight RGB Stripe Quantum Dot Organic Light Emitting Diode Row 1 - Cell 0 (QD-OLED) Screen Size / Aspect Ratio 34 inches / 21:9 Row 3 - Cell 0 Curve radius: 1800mm Max Resolution and Refresh Rate 3440x1440 @ 360 Hz Row 5 - Cell 0 FreeSync and G-Sync Compatible Native Color Depth and Gamut 10-bit / DCI-P3+ Row 7 - Cell 0 DisplayHDR TrueBlack 500 Row 8 - Cell 0 HDR10 Response Time (GTG) 0.03ms Brightness (mfr) 300 nits – full field Row 11 - Cell 0 500 nits – 25% window Row 12 - Cell 0 1,300 nits – 1.5% window Contrast Unmeasurable Speakers None Video Inputs 1x DisplayPort 2.1 Row 16 - Cell 0 2x HDMI 2.1, 1x USB-C Audio 3.5mm headphone output USB 3.2 1x up, 3x down Power Consumption 48w, brightness @ 200 nits Panel Dimensions WxHxD w/base 32 x 17.7-22 x 10.9 inches (813 x 450-559 x 277mm) Panel Thickness 4.25 inches (108mm) Bezel Width Top: 0.31 inch (8mm) Row 23 - Cell 0 Sides: 0.43 inch (11mm) Row 24 - Cell 0 Bottom: 0.55 inch (14mm) Weight 18.3 pounds (8.3kg) Warranty 3 years
RGB Stripe literally refers to the shape of the RGB sub-pixels in the PG34WCDN’s QD-OLED panel. They are tiny, narrow stripes rather than lozenge-shaped dots. This makes fine detail and fonts visibly sharper because there’s no light bleed or color fringing across the pixel gaps. Asus pairs this with a Quantum Dot layer for wide gamut color and Black Shield tech, which increases the screen’s scratch resistance and blocks more ambient light for a boost in perceived contrast. All these bits add up to a display with visibly improved realism and depth.
There is plenty of color here, but not quite as much as a few other QD OLEDs I’ve tested. The PG34WCDN came just shy of 107% coverage of DCI-P3, where displays from AOC, Corsair, and Gigabyte topped 110%. The difference is small, and anyone looking at it will deem it very colorful. It’s also super accurate out of the box, with no need for calibration, and a datasheet stored in firmware that can be summoned from the OSD.
Ultra-wide panels are not always the brightest in the room, but the PG34WCDN delivers an honest 500 nits in SDR mode with Uniform Brightness turned off, measured at a 25% window. That’s more than the competition in SDR mode, and for HDR content, it’s only bested by Acer’s X34 OLED. Asus claims 1,300 nits for a 1.5% window, and my observations leave no doubts there.
Resolution is 3440x1440, WQHD, which means a pixel density of 109ppi, the same as a 27-inch QHD 16:9 screen. You get an ideal curve too, with a 1800mm radius, enough for a nice wraparound effect but not enough for image distortion. You can use the PG34WCDN for work or play in equal measure.
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