Consumercarts is reader-supported. Learn more
Acer Predator XB273U GX vs LG UltraGear 45GR95QE-B: Comparison
What is the difference between Acer Predator XB273U GX and LG UltraGear 45GR95QE-B?
Screen size is where these two genuinely part company, Acer Predator XB273U GX 27 in against LG UltraGear 45GR95QE-B 45 in, a 40% lead for LG UltraGear 45GR95QE-B. Acer Predator XB273U GX also leads on max refresh rate, 270 Hz on the Acer Predator XB273U GX versus 240 Hz on the LG UltraGear 45GR95QE-B. Aspect ratio is not the same on both, 16:9 on the Acer Predator XB273U GX versus 21:9 on the LG UltraGear 45GR95QE-B.
Which should you buy, Acer Predator XB273U GX or LG UltraGear 45GR95QE-B?
The Acer Predator XB273U GX is the one to take for competitive players wanting to measure and tune system latency and NVIDIA Reflex-compatible GPU and peripheral owners, though it is not the pick for content creators needing wide color gamut and AMD GPU users who can't use Reflex Latency Analyzer. 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 Acer Predator XB273U GX (8.3/10): A speed-focused esports monitor whose latency analyzer tooling stands out in a crowded 1440p gaming segment. 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 Acer Predator XB273U GX and LG UltraGear 45GR95QE-B differ on resolution?
Yes. Resolution reads 2560 x 1440 on the Acer Predator XB273U GX versus 3440 x 1440 on the LG UltraGear 45GR95QE-B.
Is the HDR Support the same on the Acer Predator XB273U GX 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
- Acer Predator XB273U GX
- IPS
- LG UltraGear 45GR95QE-B
- WOLED
Brand
- Acer Predator XB273U GX
- Acer
- LG UltraGear 45GR95QE-B
- LG
Model Number
- Acer Predator XB273U GX
- XB273U GX
- LG UltraGear 45GR95QE-B
- 45GR95QE-B
Screen Size
- Acer Predator XB273U GX
- 27 in-40%
- LG UltraGear 45GR95QE-B
- 45 inBest
Resolution
- Acer Predator XB273U GX
- 2560 x 1440 (QHD)
- LG UltraGear 45GR95QE-B
- 3440 x 1440 (UWQHD)
Aspect Ratio
- Acer Predator XB273U GX
- 16:9
- LG UltraGear 45GR95QE-B
- 21:9
Refresh Rate
- Acer Predator XB273U GX
- 240 Hz
- LG UltraGear 45GR95QE-B
- 240 Hz
Response Time
- Acer Predator XB273U GX
- 1 ms
- LG UltraGear 45GR95QE-B
- 0.03ms (GtG)Best
Adaptive Sync
- Acer Predator XB273U GX
- NVIDIA G-Sync Compatible
- LG UltraGear 45GR95QE-B
- NVIDIA G-Sync, AMD FreeSync Premium Pro
HDR Support
- Acer Predator XB273U GX
- Yes
- LG UltraGear 45GR95QE-B
- Yes
Native Resolution
- Acer Predator XB273U GX
- 2560x1440
- LG UltraGear 45GR95QE-B
- 3440x1440
Max Refresh Rate
- Acer Predator XB273U GX
- 270 HzBest
- LG UltraGear 45GR95QE-B
- 240 Hz-11%
Series
- Acer Predator XB273U GX
- Predator
- LG UltraGear 45GR95QE-B
- UltraGear
HDR Formats
- Acer Predator XB273U GX
- HDR10
- LG UltraGear 45GR95QE-B
- VESA DisplayHDR True Black 400
Which one should you pick?
Choose Acer Predator XB273U GX if you want the higher refresh rate (240 Hz vs 240 Hz) and the higher max refresh rate (270 Hz vs 240 Hz).
Choose LG UltraGear 45GR95QE-B if you want the higher screen size (45 in vs 27 in) and the lower response time (0.03ms (GtG) vs 1 ms).
Verdict
Acer Predator XB273U GX
8.3 / 10 Expert Rating
A speed-focused esports monitor whose latency analyzer tooling stands out in a crowded 1440p gaming segment.
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.