Alienware 39 5K OLED Gaming Monitor (AW3926QW) Review

About the Alienware AW3926QW

• Price: $1,099.99
• Display size: 38.9 inches
• Resolution: 5,120 x 2,160 pixels
• Refresh rate: 165Hz native, 330Hz dual mode (2,560 x 1,080)
• Peak brightness: 1,300 nits
• HDR support: HDR10, Dolby Vision, VESA DisplayHDR True Black 500
• Color depth: 10-bit (1.07 billion colors)
• Color gamut: 99% DCI-P3
• Contrast ratio: 1,750,000:1
• Pixel response time (GtG): 0.03ms (Extreme mode)
• Ports: 2x HDMI 2.1, 1x DisplayPort 2.1 (UHBR20), 1x USB-C with DisplayPort Alt Mode and 90W power delivery, 2x USB-A 5Gbps, 1x USB-C 5Gbps, 1x USB-B upstream, 3.5mm headphone jack
• VRR support: AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible, VESA AdaptiveSync
• Other features: LG Display Tandem WOLED panel, RGB-stripe subpixel layout, 1500R curvature, glossy finish, KVM, height/tilt/swivel adjustable stand, VESA mount
• Warranty: 3-year warranty, including OLED burn-in coverage

How we tested the Alienware AW3926QW

To test this monitor, I used it as my daily display for a few weeks, mostly connected to a Mac Studio. I also connected it to my gaming PC and used it in two different environments: one with low ambient light and one with lots of reflections. I paid close attention to color uniformity, brightness, and response time. My usual monitor is an Apple Studio Display XDR, which is highly color accurate, so I have a strong sense of how the content I regularly view should look.

What we like

It has stunning 5K2K clarity

The best thing about this monitor is its image quality. At 5,120 x 2,160 pixels across 39 inches, the AW3926QW delivers about 143 pixels per inch. That's close to the density of a 32-inch 4K monitor, and it's clearly sharper than a typical 34-inch 3,440 x 1,440 OLED ultrawide. If you're sensitive to that, you'll notice it most in fine text, UI elements, and any content with tight detail. The RGB-stripe subpixel layout is a big part of why. Windows renders fonts assuming an RGB-stripe arrangement, so the AW3926QW produces cleaner, crisper text than RGWB-style 39-inch OLEDs.

Image quality beyond text is excellent, too. OLED-level blacks, contrast, and color saturation are all present, and the monitor is accurate enough for creative work. HDR peaks at around 1,200 to 1,300 nits in small highlights, giving specular details and bright accents plenty of punch.

Dell offers several HDR modes, and none of them are perfect for every scenario. True Black and Peak 1300 are more accurate in darker scenes, while Peak 1300 Bright pushes the image harder but can overbrighten shadows. The monitor also supports Dolby Vision, though the small number of compatible games and inconsistent app-switching behavior still limit its usefulness on PC. It's more relevant if you're connecting a media device.

Its size is versatile, and so are its features

A 39-inch 21:9 ultrawide is roughly the height of a 32-inch 16:9 monitor, but considerably wider. That extra horizontal space is useful for side-by-side windows, video-editing timelines, and any workflow where you'd otherwise tile across two displays. It's a practical size—big enough to feel immersive in games without dominating a desk the way a 45-inch 5K2K ultrawide does.

Gaming performance is where the dual-mode feature comes in. You can run at native 5,120 x 2,160 up to 165Hz for image fidelity, or drop to 2,560 x 1,080 at up to 330Hz when you want raw speed. The on-screen display also includes smaller simulated screen-size presets. Dell rates the response time at 0.03ms gray-to-gray, and VRR support covers G-Sync Compatible, FreeSync Premium Pro, and AdaptiveSync, so you're covered regardless of GPU brand. Compared to a 32-inch 4K 240Hz OLED, you're getting a broader canvas and wider field of view at the expense of peak refresh rate at native resolution.

I was also impressed with its connectivity. You'll get a DisplayPort 2.1 port that supports full native resolution and refresh rates, along with two HDMI 2.1 inputs and a USB-C port with 90W power delivery, so you don't have to charge your laptop separately. There are no built-in speakers, so you'll need external audio, but the 3.5mm output and USB hub add some convenience.

Dell offers aggressive pricing

At $1,099.99, the Alienware AW3926QW is roughly $700 less than the LG 39GX950B—and the two monitors share a resolution, similar connectivity, and the same basic proposition of a 39-inch 5K2K OLED ultrawide. You do give up some things for that price gap, particularly in large-area brightness, but the feature set is comparable.

Dell's three-year warranty, with burn-in coverage included, is a welcome perk, too. OLED burn-in remains a concern for anyone using a monitor for desktop work with static UI elements, and having that covered for three years without a separate purchase adds peace of mind. It doesn't eliminate the concern entirely, but it does reduce the financial risk of committing to a high-end OLED as a daily driver.

What we don't like

It only has a moderate brightness and refresh rate

Large-area brightness falls off more noticeably on the AW3926QW than on the LG 39GX950B. That's a direct consequence of the RGB-stripe subpixel layout. Without a dedicated white subpixel, the panel can't push as much light across big bright areas. Auto-brightness limiting, which is standard on OLEDs, can also be noticeable in scenes with lots of white or bright UI. The 1,200- to 1,300-nit peaks Dell claims are achievable in small HDR highlights, but full-screen SDR tops out far lower, at about 300 nits. That's fine for a controlled room but won't overpower a bright environment.

As for refresh rate, 165Hz is smooth and perfectly good for the vast majority of gaming. But it trails the 240Hz you'd get on 32-inch 4K OLEDs like the Alienware AW3225QF, and it's well behind 360Hz 34-inch QD-OLEDs for competitive gamers. The 330Hz dual-mode is available as an option, but it drops the resolution to 2,560 x 1,080 pixels. On a 39-inch screen, that resolution can look soft—it's functional, but it's a compromise rather than a true high-refresh alternative.

Some users have also reported an edge-dimming issue in which the panel's edges dim during bright scenes, creating a vignette effect. I didn't notice it, however.

There is some reflection in the monitor

The glossy panel is a double-edged sword. It contributes to the AW3926QW's excellent perceived sharpness and contrast, but it also reflects direct light sources, and since brightness is already limited, that matters. In a room with windows behind you or overhead lighting, reflections can be distracting. Matte-screen alternatives sacrifice some of that image clarity but handle bright rooms better.

The stand can be wobbly

The stand, while compact and well built, can wobble at taller height settings. It's not a dealbreaker, but if you tend to set your monitor high, you'll probably notice it. A VESA arm would solve the problem, though that's an added cost.

Should you buy the Alienware AW3926QW?

Yes, if you want a sharp ultrawide larger than 34 inches

The Alienware AW3926QW (available at Dell) is a compelling monitor if what you want is a large, sharp OLED ultrawide that works for both immersive gaming and productive desktop work. The 5K2K resolution with RGB-stripe text rendering makes it viable as a daily-driver work monitor in a way that RGWB alternatives and lower-resolution 34-inch ultrawides aren't.

If you want brighter large-area HDR and SDR performance in this exact size class, the $1,800 LG 39GX950B delivers that, albeit at a steep premium. For everyone else, the AW3926QW is the monitor to beat in terms of value, provided Dell sorts out the edge-dimming issue some users have reported.