The LG 34GN850-B is a high-end gaming monitor released in 2020, promising immersive gameplay to professional gamers. It has an impressive 160Hz and native FreeSync tech, providing tear-free gaming. Its excellent features help it rank among the best computer monitors in the industry. It provides exceptional coverage of the different SDR and HDR color spaces, so it’s ideal for media creation. This LG monitor has a massive 34-inch screen with a 3440 x 1440 resolution, providing visual immersion and crisp content. Read on to find out more about the LG 34GN850-B, and browse the most advanced gaming monitors today.
97
out of
196
Computer Monitors
LG 34GN850-B Monitor Review
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Updated Jan 25, 2024 6:26 PM
Published
True Score
True Score is an AI-powered algorithm of product tests and customer reviews.
80
Absolutely Fresh
80
9
Experts
86
993
Consumers
Expert Rankings
(
9
)
Product testers hailed the LG 34GN850-B, recommending it for gaming, media creation, and office use. They were impressed by its fast response time, FreeSync tech, and 160Hz refresh rate. However, they criticized its relatively low 956:1 contrast ratio. In fact, the HP OMEN 27c, which features a VA panel, offers a much better 2,402:1 contrast ratio.
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Product Snapshot
Overview
The LG 34GN850-B is a high-end gaming monitor released in 2020, promising immersive gameplay to professional gamers. It has an impressive 160Hz and native FreeSync tech, providing tear-free gaming. Its excellent features help it rank among the best computer monitors in the industry. It provides exceptional coverage of the different SDR and HDR color spaces, so it’s ideal for media creation. This LG monitor has a massive 34-inch screen with a 3440 x 1440 resolution, providing visual immersion and crisp content. Read on to find out more about the LG 34GN850-B, and browse the most advanced gaming monitors today.
Consensus
our Verdict
Professional reviewers were pleased with the LG 34GN850-B, recommending it for gaming. They praised its 160Hz refresh rate, native FreeSync support, and G-SYNC compatibility. If you need a 34-inch device with a better refresh rate, explore our LG 34GP950G-B review. Analysts clocked its input lag at a low 4.2 ms and found its rise-and-fall response time to be3.4 ms. Analysts at Digital Trends praised its UHD 3440 x 1440 resolutions, observing crisp text and graphics. If you need a more detailed 4K device, check out the 32-inch LG 32UL950-W. Testing revealed that this monitor hits the 441-nit level in HDR mode. Researchers reported a great color gamut, with a coverage of 99.9% of the sRGB color space, and they recommend the device for content creation. This monitor has two HDMI 2.0, although it doesn’t have a KVM switch, unlike the Gigabyte M34WQ. Product testers at Tech Radar praised its good viewing angles. However, they were not impressed by its low 960:1 contrast ratio, which resulted in sub-par blacks in dark environments.
ReasonS to Buy
- Outstanding response time and very low input lag
- Great viewing angles
- HDMI 2.0 inputs
- Decent peak brightness
- Very wide color gamut and
Reason to Avoid
- Ergonomically limited stand
- Low contrast ratio
LG 34GN850-B Monitor Specs
| Display Type | LED | |
| HDMI Inputs | 2 | |
| HDR Format | HDR10, HDR400 | |
| Max Resolution | 3440 × 1440 | |
 | Panel Type | IPS |
| Refresh Rate | 160 Hz | |
 | Response Time | 1 ms |
| Screen size | 34" | |
 | Sync Technology | AMD FreeSync, G-Sync |
All Specs
Test Results
These are the most important criteria to test for Computer Monitors based on our comprehensive Testing Methodology.
| Brightness (nits) | 381 |
| Contrast Ratio (as ratio x:1) | 975 |
| Color Gamut/Accuracy % (DCI P3 xy) | 94.75 |
| Color Gamut/Accuracy % (DCI P3 uv) | 0 |
| Color Gamut % (sRGB Coverage xy) | 99.45 |
| Color Gamut % (Adobe RGB Coverage xy) | 86.6 |
| Color Gamut % (Rec. 2020 Coverage xy) | 71.6 |
| Color Gamut % (Rec. 709 Coverage xy) | 0 |
| Input Lag (ms) | 3.85 |
| Response Time (ms) | 4.75 |
| Horizontal Viewing Angle (Washout Left) | 43 |
| Horizontal Viewing Angle (Washout Right) | 42 |
| Vertical Viewing Angle (Washout Above) | 32 |
| Vertical Viewing Angle (Washout Below) | 33 |
| Reflections % (Total Reflections) | 5.6 |
All Tests
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Product Comparison
 LG 34GN850-B Monitor Review | ||||
|---|---|---|---|---|
True Score | 80 | NR | NR | NR |
Ranking | # 97 / 196 | # / | # / | # / |
Market Context |
The LG 34GN850-B is a high-end gaming monitor released in 2020, promising immersive gameplay to professional gamers. It has an impressive 160Hz and native FreeSync… |
The LG 34GN850-B has the same 34-inch screen size, 3440 x 1440 resolution, and 160Hz refresh rate. However, the LG 34GP83A-B has a slightly faster… The LG 34GN850-B has the same 34-inch screen size, 3440 x 1440 resolution, and 160Hz refresh rate. However, the LG 34GP83A-B has a slightly faster 3.3 ms rise-and-fall response time, compared to the 3.4 ms of the LG 34GN850-B. The LG 34GP83A-B also gets brighter (441nits) in HDR mode, compared to the 398 nits of the LG 34GN850-B. |
The LG 34GN850-B has a slightly lower 160Hz refresh rate compared to the 180Hz maximum refresh rate of the LG 34GP950G-B. Also, while the 34GN850-B… The LG 34GN850-B has a slightly lower 160Hz refresh rate compared to the 180Hz maximum refresh rate of the LG 34GP950G-B. Also, while the 34GN850-B (this review) natively supports FreeSync, the 34GP950-B is a native G-SYNC device. |
The LG 34GN850-B has a better 160Hz refresh rate than the 144Hz of the Dell S3422DWG. Like most IPS panel-equipped monitors, the LG monitor also… The LG 34GN850-B has a better 160Hz refresh rate than the 144Hz of the Dell S3422DWG. Like most IPS panel-equipped monitors, the LG monitor also has wider viewing angles, starting to experience color washout horizontally after 40° compared to 35° for the Dell monitor. However, the VA panel-equipped Dell monitor offers better black levels and darkroom performance, featuring a much better contrast ratio of 2,725:1, which dwarfs the 960:1 of the LG display. |
Display Type | LED | – | – | – |
HDMI Inputs | 2 | – | – | – |
HDR Format | HDR10, HDR400 | – | – | – |
Max Resolution | 3440 × 1440 | – | – | – |
Panel Type | IPS | – | – | – |
Refresh Rate | 160 Hz | – | – | – |
Response Time | 1 ms | – | – | – |
Screen size | 34" | – | – | – |
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Score Card
E
Expert Score
80
*.75
We place a 75% weighted value on Expert Test Scores
C
Customer Score
86
*.25
We place a 25% weighted value on Customer Scores
True Score
80
Any product with a True Score above 80 is a Absolutely Fresh
Expert Scores
Publications with higher Trust Ratings are given more weight.
101.4Category Trust Rating
77The LG 34GN850-B is a good monitor for most uses. Although it’s mainly made for… Read MoreBy:
Niels Broekhuijsen
39Category Trust Rating
80LG’s luscious new 34-inch 160Hz NanoIPS monitor is a gamer’s delight. But it comes at… Read MoreBy:
Samuel Breton
23.65Category Trust Rating
80The LG Ultragear 34GN850 is a very good gaming monitor with impressive image quality and… Read MoreBy:
Jeremy Laird
78.3Category Trust Rating
90The LG 34GN850-B is a superb ultrawide monitor for both work and play. Read MoreBy:
Unknown
76.8Category Trust Rating
NRThe UltraGear 34GN850 takes IPS technology into new territory, and it ticks most the gaming… Read MoreBy:
Paolo Reva
79.3Category Trust Rating
90Overall, the LG 34GN850 is an excellent high-end ultrawide monitor and makes meaningful improvements to… Read MoreBy:
Bernd Weeser-Krell
Customer Scores
- 86
(
4.3/5
)
993Ratings
- NR
(
NR/5
)
Ratings
- NR
(
NR/5
)
Ratings
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