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AOC CU34G4Z: Review of a 240Hz ultrawide monitor for under €300 This video analyzes the AOC CU34G4Z monitor, highlighting its excellent value for money, its 240Hz curved ultrawide panel, its good factory calibration and its gaming performance. Despite some limitations such as the lack of USB-C and KVM, and a lower brightness than specified, it is considered a highly recommended option for gamers looking for an affordable ultrawide monitor.
AOC CU34G4Z: Review of a 240Hz ultrawide monitor for under €300
1. Introduction to the AOC CU34G4Z: An affordable and high-performance ultrawide monitor
  • ✅ The PC monitor market has maintained a good level of innovation and competitive prices.
  • ✅ The AOC CU34G4Z offers a 34-inch (3440x1440) ultrawide curved panel with a 240Hz refresh rate for under €300.
00:00 - 00:43
1. Introduction to the AOC CU34G4Z: An affordable and high-performance ultrawide monitor
  • ✅ The PC monitor market has maintained a good level of innovation and competitive prices.
  • ✅ The AOC CU34G4Z offers a 34-inch (3440x1440) ultrawide curved panel with a 240Hz refresh rate for under €300.
01:01 - 02:37
2. Price, design and ergonomics of the AOC CU34G4Z
  • ✅ The price of the AOC CU34G4Z is approximately €280 on Amazon and Curry's, a very competitive price for its specifications.
  • ✅ The design is similar to other models in the AOC G series, with a discreet gamer style in matte black.
  • ✅ The stand offers ergonomic adjustments: 130mm height adjustment, 20° swivel on both sides and -3.5° to 20° tilt.
  • ✅ VESA 100x100 support for wall or arm mounting.
  • ✅ 1500R curvature.
02:38 - 03:09
3. Connectivity and OSD controls of the AOC CU34G4Z
  • ✅ It has three video inputs: one DisplayPort 1.4 and two HDMI 2.1.
  • ⚠️ Includes a two-port USB hub, but lacks USB-C and KVM functionality.
  • ⚠️ The OSD is controlled by five buttons, instead of a joystick, which may be less comfortable.
03:10 - 03:42
4. AOC's OSD interface and G-Menu software
  • ✅ The OSD system has been renewed by AOC, offering a clear and organized interface with options for gamers and an sRGB mode.
  • ✅ AOC's G-Menu software allows you to control the OSD from the desktop and update the monitor's firmware.
04:07 - 06:28
5. Factory calibration analysis: Brightness, contrast, uniformity and color gamut
  • ⚠️ The maximum measured brightness is 372 nits, lower than the 450 nits specified by AOC.
  • ✅ The contrast is 2900:1, higher than the declared 2500:1 ratio.
  • ✅ The uniformity of the screen is good, with minimal color deviations.
  • ✅ The color gamut coverage is wide, exceeding the sRGB space and offering 91.6% DCI-P3, 86.5% Adobe RGB and 76.5% REC 2020.
  • ✅ The factory calibration is solid, with a color balance of 6442K and an almost perfect gamma of 2.2.
  • ⚠️ Saturation shows some inaccuracy due to the unlimited color gamut.
06:29 - 07:11
6. sRGB mode and full calibration of the AOC CU34G4Z
  • ✅ sRGB mode limits the color gamut, improving color accuracy and white balance.
  • ✅ Full calibration offers even better results, although sRGB mode is sufficient for most users.
07:12 - 07:26
7. Backlight bleed and viewing angles
  • ✅ Backlight bleed is minimal, normal for an inexpensive LCD.
  • ✅ Viewing angles are better than expected for a VA panel, with a slight loss of color intensity.
07:27 - 09:36
8. Response time performance and Overdrive modes
  • ✅ The monitor offers four Overdrive modes: Normal, Fast, Faster and Fastest.
  • ✅ Normal mode has a response time of 7.23 ms.
  • ✅ Fast mode reduces the response time to 5.93 ms without significant overshoot.
  • ✅ Faster mode offers 4.23 ms, but shows some dark level smearing.
  • ⚠️ Fastest mode reduces the response time to 2.73 ms, but introduces overshoot.
  • ✅ Faster mode is the most optimal option.
  • ✅ Variable overdrive implementation that adjusts according to the refresh rate.
  • ✅ The CU34G4Z is one of the fastest LCDs tested, especially considering its price.
09:37 - 10:09
9. Visual examples of motion clarity and smearing
  • ✅ Faster mode shows inverse ghosting.
  • ✅ Motion clarity is very good, better than expected for its price.
  • ✅ Less dark level smearing than other inexpensive VA monitors.
10:10 - 10:58
10. Stroboscopic backlight mode (MBR)
  • ✅ Offers a stroboscopic backlight mode (MBR) to improve motion clarity.
  • ⚠️ MBR is not synchronized, so it requires disabling Adaptive Sync.
  • ⚠️ Brightness decreases when activating MBR.
  • ✅ MBR10 offers a good balance between motion clarity and crosstalk.
10:59 - 12:32
11. Real gaming experience and additional considerations
  • ✅ The CU34G4Z is versatile, suitable for immersive and fast-paced games.
  • ✅ The VA panel offers good contrast and saturated colors.
  • ✅ The 1500R curvature offers an immersive experience without being excessive.
  • ⚠️ A powerful PC is needed to reach high refresh rates in 1440p ultrawide resolution.
12:33 - 12:57
12. Adaptive Sync and input latency
  • ✅ Adaptive Sync is supported to avoid tearing when 240 FPS is not reached.
  • ✅ Works well with NVIDIA cards, although it does not have official G-Sync certification.
  • ✅ Input latency is low, with an average of 2.39 ms.
12:58 - 15:00
13. Final conclusions about the AOC CU34G4Z
  • ✅ The AOC CU34G4Z is one of the best budget ultrawide monitors tested.
  • ✅ It stands out for its factory calibration, gaming performance and motion clarity.
  • ⚠️ Some limitations include the lack of USB-C and KVM, uncomfortable OSD controls and lower brightness than specified.
  • ✅ Despite these limitations, its price and performance make it an excellent option.
AOCCU34G4ZUltrawideMonitorGamingReview