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AOC 27G4X vs LG UltraGear 45GR95QE-B: Comparison
AOC 27G4X vs LG UltraGear 45GR95QE-B: the refresh rate difference
The gap that matters here is refresh rate: AOC 27G4X 180 Hz against LG UltraGear 45GR95QE-B 240 Hz, which puts LG UltraGear 45GR95QE-B 25% ahead. Add max refresh rate to that, 180 Hz on the AOC 27G4X versus 240 Hz on the LG UltraGear 45GR95QE-B, and the pattern holds. Add screen size to that, 27 in on the AOC 27G4X versus 45 in on the LG UltraGear 45GR95QE-B, and the pattern holds. Hdr certification is not the same on both, HDR10 signal only on the AOC 27G4X versus DisplayHDR True Black 400 on the LG UltraGear 45GR95QE-B. Hdr formats is not the same on both, HDR10 on the AOC 27G4X versus VESA DisplayHDR True Black 400 on the LG UltraGear 45GR95QE-B.
Which should you buy, AOC 27G4X or LG UltraGear 45GR95QE-B?
The AOC 27G4X suits extreme budget-conscious gamers and first-time QHD high-refresh upgraders, though it is the wrong buy for buyers wanting real HDR contrast and anyone wanting a fully adjustable stand. Buy the LG UltraGear 45GR95QE-B for sim racing and flight sim enthusiasts wanting wraparound FOV and high-end gaming rigs paired with a top-tier GPU, though it is not built for small-desk setups without adequate viewing distance and productivity users who need flat edges for spreadsheet alignment. Our rating of the AOC 27G4X (7.6/10): an aggressively priced high-refresh QHD monitor that delivers solid core gaming performance without extra frills. Our rating of the LG UltraGear 45GR95QE-B (9/10): the best pure-immersion ultrawide gaming monitor on the market for sim and open-world fans who can afford it.
Frequently asked questions
Do the AOC 27G4X and LG UltraGear 45GR95QE-B differ on resolution?
Yes. Resolution reads 1920 x 1080 on the AOC 27G4X versus 3440 x 1440 on the LG UltraGear 45GR95QE-B.
Is the HDR Support the same on the AOC 27G4X and LG UltraGear 45GR95QE-B?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Panel Type
- AOC 27G4X
- IPS
- LG UltraGear 45GR95QE-B
- WOLED
Brand
- AOC 27G4X
- AOC
- LG UltraGear 45GR95QE-B
- LG
Model Number
- AOC 27G4X
- 27G4X
- LG UltraGear 45GR95QE-B
- 45GR95QE-B
Screen Size
- AOC 27G4X
- 27 in-40%
- LG UltraGear 45GR95QE-B
- 45 inBest
Resolution
- AOC 27G4X
- 1920 x 1080 (Full HD)
- LG UltraGear 45GR95QE-B
- 3440 x 1440 (UWQHD)
Aspect Ratio
- AOC 27G4X
- 16:9
- LG UltraGear 45GR95QE-B
- 21:9
Refresh Rate
- AOC 27G4X
- 180 Hz-25%
- LG UltraGear 45GR95QE-B
- 240 HzBest
Response Time
- AOC 27G4X
- 1 ms
- LG UltraGear 45GR95QE-B
- 0.03ms (GtG)Best
Adaptive Sync
- AOC 27G4X
- Adaptive-Sync, NVIDIA G-Sync Compatible
- LG UltraGear 45GR95QE-B
- NVIDIA G-Sync, AMD FreeSync Premium Pro
HDR Support
- AOC 27G4X
- Yes
- LG UltraGear 45GR95QE-B
- Yes
Curved
- AOC 27G4X
- No
- LG UltraGear 45GR95QE-B
- Yes
Native Resolution
- AOC 27G4X
- 1920x1080
- LG UltraGear 45GR95QE-B
- 3440x1440
Screen Curvature
- AOC 27G4X
- Flat
- LG UltraGear 45GR95QE-B
- 800R
Max Refresh Rate
- AOC 27G4X
- 180 Hz-25%
- LG UltraGear 45GR95QE-B
- 240 HzBest
HDR Certification
- AOC 27G4X
- HDR10 signal only
- LG UltraGear 45GR95QE-B
- DisplayHDR True Black 400
DCI-P3 Coverage
- AOC 27G4X
- 95.5 %
- LG UltraGear 45GR95QE-B
- 98.5 %
Series
- AOC 27G4X
- AOC Gaming 27G4X
- LG UltraGear 45GR95QE-B
- UltraGear
Color Gamut
- AOC 27G4X
- 128.3% sRGB, 95.5% DCI-P3
- LG UltraGear 45GR95QE-B
- 98.5% DCI-P3
HDR Formats
- AOC 27G4X
- HDR10
- LG UltraGear 45GR95QE-B
- VESA DisplayHDR True Black 400
Which one should you pick?
Choose AOC 27G4X if you already have it on hand or find it at a lower price.
Choose LG UltraGear 45GR95QE-B if you want the higher screen size (45 in vs 27 in), the higher refresh rate (240 Hz vs 180 Hz) and the lower response time (0.03ms (GtG) vs 1 ms).
Verdict
AOC 27G4X
7.6 / 10 Expert Rating
An aggressively priced high-refresh QHD monitor that delivers solid core gaming performance without extra frills.
LG UltraGear 45GR95QE-B
9 / 10 Expert Rating
The best pure-immersion ultrawide gaming monitor on the market for sim and open-world fans who can afford it.




