AOC CU34G3S 34″ Ultrawide 165Hz Gaming Monitor Review

As one of the leading names in the monitor market, AOC always has something exciting to offer. They’ve got many of the coolest gaming monitors on the market, and today, they’ve got a (mostly) new one to show us! The AOC CU34G3S 34″ is the 3rd generation of this model, offering improved performance and features over the model from last year. Actually, I reviewed that model, and you can check that out here. Straight away, I can see the refresh rate is higher, the curve is now 1000R instead of 1500R and a few other little tweaks. What I really want to see today, however, is how well it performs.

AOC CU34G3S 34″ Ultrawide

With a 1000R curvature, you’ll really be able to utilise that ultrawide design more easily, as well as getting: less eye strain, reduced glare, larger perceived images and higher immersion. The 165Hz refresh rate is a nice upgrade too, more than twice the industry “standard” of 60Hz. Add to that a 3440 x 1440 VA panel and FreeSync Premium, and this should be a pretty stunning monitor for gaming. While it’s not the most extreme or high-end monitor AOC makes, it’s certainly striking a good balance between practical features and more premium gamer features, and their mid-to-high-end approach will be reflected in the price too.


  • 34-inch Panel
  • 3440×1440 Resolution
  • 1000R Curvature
  • 21:9 Ultrawide Design
  • 165Hz Refresh Rate
  • 1ms Response Time
  • FreeSync Premium (not G-sync Compatible)
  • 3-Sided Frameless
  • Adjustable Stand

For in-depth features and specifications, check out the AOC CU34G3S product page here.

What AOC Had to Say

“With 3440 x 1440 resolution, Wide Quad HD (WQHD) offers superior picture quality and crisp imagery that reveals every detail. The widescreen 21:9 aspect ratio is perfect for watching movies in an expansive format or immersing yourself in the latest game, plus it offers more space when it’s time to work. True 8-bit color provides a broad color palette for vibrant, natural-looking images.” – AOC

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Peter Donnell

As a child still in my 30's, I spend my day combining my love of music and movies with a life-long passion for gaming, from arcade classics and retro consoles to the latest high-end PC and console games. So it's no wonder I write about tech and test the latest hardware while I enjoy my hobbies!

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