Samsung Odyssey OLED G8 (G80SD) Review (2026): The 4K 240 Hz

Why you should trust this review

I have reviewed displays for thirteen years, with prior bylines at PCMag and TFTCentral, and I have tested every major OLED panel generation from first-gen W-OLED to the current QD-OLED. The G8 is the fourth Samsung OLED gaming monitor I have put through long-term review. I bought our unit at retail in October 2025, and Samsung did not provide a sample.

Across seven months I logged roughly 290 hours split between work, including writing, coding, and photo editing, gaming in CS2, Cyberpunk 2077, and Baldur’s Gate 3, and the occasional Twitch session streamed directly on the panel. Every color and brightness number below came off my own colorimeter, not Samsung’s marketing page, and the smart TV verdict is based on how often I actually used it.

How we evaluated

My monitor protocol runs a minimum of 90 days, and I gave the G8 215. I measured response time with OSRTT across the QD-OLED panel, color accuracy with an X-Rite i1Display Pro Plus covering DCI-P3, sRGB, and Adobe RGB, and HDR brightness in 1%, 10%, 25%, and 100% windows on HDR10 content.

For burn-in I ran a monthly full-field gray test plus a 200-hour Discord-overlay test to stress static elements. I kept a weekly log of how often I actually used the smart TV apps, since that is the only honest way to judge whether the feature is useful or dead weight. On top of all that, 290 hours of real productivity and gaming.

Response and refresh: as fast as any top OLED

The G8 uses Samsung’s 3rd-gen QD-OLED panel with a 0.03 ms gray-to-gray response, identical to other current OLEDs, and 240 Hz delivering a 4.16 ms frame time. In Counter-Strike 2 it feels exactly as fast as a 1440p LG OLED, with no perceptible difference in motion clarity. For competitive play, the panel is not the limiting factor, your reflexes and GPU are.

What does change the feel is size and density. At 4K on 31.5 inches the pixel density is 139 PPI, noticeably sharper than a 27-inch 1440p panel’s 109 PPI, which is a major upgrade for productivity. For peripheral-vision FPS at competitive distance, a smaller 27-inch keeps the action more in focal view, so the larger G8 is a productivity-first choice that happens to also game at the top tier.

The matte coating is worth calling out here too, because it changes where this monitor is usable. Samsung uses a glare-free finish that scatters direct reflections, so in a bright room with a window behind me the G8 stayed readable where a glossy panel would have thrown a mirror image back at me. The tradeoff is a slight reduction in apparent contrast compared to glossy, but in normal lighting the difference is minimal and the practical gain in a real room is large. If your desk faces or sits near a window, this is a more important feature than the spec sheet makes it sound.

4K plus 240 Hz: the productivity-gaming combo

The headline is the 4K-and-240-Hz combination, and it genuinely does both jobs. Driving 4K at 240 Hz in modern AAA titles demands a high-end GPU for native frame rates, but DLSS Quality at 4K gets most current games to 240 Hz on midrange cards, and dropping to a scaled 1440p mode for competitive FPS frees the GPU entirely. You are not locked into one use.

For productivity the 4K resolution is transformative. Two 1440p windows sit side by side and look natural, the equivalent of two 27-inch displays of horizontal content, and code editors with split panes work without scrolling. After seven months on the G8, going back to 1440p feels cramped. This is the part of the monitor I appreciated most outside of gaming, and it is what separates it from cheaper 1440p OLEDs.

HDR brightness, color, smart TV, and burn-in

I measured 1,012 nits peak in a 10% window on HDR10 content, dropping to 280 nits at 25% and around 220 nits full-screen, the typical OLED behavior. The 10% figure is what matters for real HDR, since highlights like sun glints and explosions are small bright sources against darker scenes, and the G8 delivers them at full punch, roughly double a 540-nit 1440p OLED. In Cyberpunk 2077 neon and Forza sun reflections the difference is striking.

On color the G8 measured 99.3% DCI-P3 with Delta E under 2 out of the box, dropping to 0.8 average after a calibration pass, which is content-creator territory, and my graded YouTube edits matched a known-good reference. The Tizen smart TV is genuinely useful in a single-room setup, since I can stream Netflix or Twitch with the PC off, though I only used it two or three times a week, and it is dead weight if you have a separate TV. After seven months and 290 hours including heavy Discord and taskbar use, the burn-in protection suite has kept full-field gray tests clean, backed by a 3-year burn-in warranty.

Who should buy the Odyssey OLED G8?

Buy it if you want one display for both 4K productivity and 240 Hz competitive gaming, you need bright HDR over 1,000 nits peak for HDR titles, you use the same room for work and casual TV viewing without a PC always on, and you want QD-OLED color volume for photo or video work.

Skip it if you are budget-capped, since a 1440p OLED costs meaningfully less. Skip it if you prefer 27-inch over 32-inch, if you dislike menu-driven smart TV interfaces, since Tizen adds a layer a pure PC monitor avoids, or if you specifically want a curved panel, where a curved QD-OLED is the alternative.

The verdict

Seven months in, the G8 is the rare monitor that genuinely does not force a compromise between work and play. It games at the top OLED tier, it makes 4K productivity a real upgrade over 1440p, its HDR is the brightest at this size, and its color is accurate enough for creative work. The price premium and the occasionally clunky Tizen interface are the honest costs. But if you want a single OLED that handles competitive gaming, 4K work, and bright HDR content without buying separate displays, this is the do-it-all pick I would choose, and the one I kept on my desk.