The LG 27GN850-B is a mid-range gaming monitor released in 2020, intending to provide innovative features to gamers. It has a 144Hz refresh rate, comparing favorably to the top-rated computer monitors on the market. This device has a remarkably low refresh rate and decent 4.0 ms input lag, providing excellent motion handling. It has a QHD 2560 x 1440 27-inch screen, delivering visual immersion, and it supports both FreeSync and G-SYNC reducing screen tearing. Continue reading our LG 27GN850-B review and explore how it stacks up against the top gaming monitors in the industry today.
163
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196
Computer Monitors
LG 27GN850-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.
76
Mixed Reviews
74
1
Experts
82
47
Consumers
Expert Rankings
(
1
)
Top experts were impressed by the LG 27GN850-B, approving it for gaming, office use, and media creation. They praised its fast response time, great refresh rate, and FreeSync and G-SYNC tech. Reviewers also praised its 1440p resolution and wide viewing angles, which proved similar to the LG 27GN880-B. However, they criticized its low contrast ratio.
$489.99
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Product Snapshot
Overview
The LG 27GN850-B is a mid-range gaming monitor released in 2020, intending to provide innovative features to gamers. It has a 144Hz refresh rate, comparing favorably to the top-rated computer monitors on the market. This device has a remarkably low refresh rate and decent 4.0 ms input lag, providing excellent motion handling. It has a QHD 2560 x 1440 27-inch screen, delivering visual immersion, and it supports both FreeSync and G-SYNC reducing screen tearing. Continue reading our LG 27GN850-B review and explore how it stacks up against the top gaming monitors in the industry today.
Consensus
our Verdict
Product testers were pleased with the LG 27GN850-B, recommending it for gaming. Testers at Monitor Nerds were impressed by its 144Hz native refresh rate and outstanding 6.8 ms total response time, saying they observed only minimal motion blur during testing. Editors at RTINGS lauded this device’s IPS panel tech, explaining that the image on this gaming monitor remains accurate when viewed from the sides. This LG monitor has a 27-inch 2560 x 1440 screen, which proved immersive, offering clear text and visuals, and testers recommended it for the office. They discovered that it has wide HDR and SDR color spaces, covering 88.8% of the Adobe RGB xy and 99.8% of the sRGB color spaces respectively. Thus, experts endorsed it for content creation. Users seeking a large, more immersive screen should check out the 38-inch curved LG 38WN95C-W. Editors were also pleased that this monitor has 4K-ready HDMI 2.0 ports. However, product analysts were disappointed by this device’s relatively low 852:1 contrast ratio, saying that black images appear grayish in a dark room. Also, although experts were happy that this monitor has HDR tech, they were disappointed by its relatively low 325-nit HDR peak brightness and lack of a local dimming function.
ReasonS to Buy
- Great 144Hz refresh rate
- FreeSync tech and G-SYNC compatibility
- Fast response times and low 4.0 ms input lag
- Excellent QHD resolution and decent screen size
- Ultra-wide viewing angles
Reason to Avoid
- Low contrast ratio
- Poor HDR peak brightness
- Lacks a local dimming feature
LG 27GN850-B Monitor Specs
| Display Type | LCD | |
| HDMI Inputs | 2 | |
| HDR Format | Yes | |
| Max Resolution | 2560 x 1440 | |
 | Panel Type | IPS |
| Refresh Rate | 144 Hz | |
 | Response Time | 1 ms |
| Screen size | 27" | |
 | Sync Technology | Adaptive Sync |
All Specs
Test Results
These are the most important criteria to test for Computer Monitors based on our comprehensive Testing Methodology.
| Brightness (nits) | 321 |
| Contrast Ratio (as ratio, x:1) | 852 |
| Color Gamut/Accuracy % (DCI P3 xy) | 95.5 |
| Color Gamut/Accuracy % (DCI P3 uv) | 0 |
| Color Gamut % (Adobe RGB Coverage xy) | 88.8 |
| Color Gamut % (sRGB Coverage xy) | 99.8 |
| Color Gamut % (Rec. 2020 Coverage xy) | 70 |
| Color Gamut % (Rec. 709 Coverage xy) | 0 |
| Input Lag (ms) | 14 |
| Response Time (ms) | 4.2 |
| Reflections % (Total Reflections) | 5.2 |
| Horizontal Viewing Angle (Washout Left) | 46 |
| Horizontal Viewing Angle (Washout Right) | 46 |
| Vertical Viewing Angle (Washout Above) | 34 |
| Vertical Viewing Angle (Washout Below) | 34 |
All Tests
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Product Comparison
 LG 27GN850-B Monitor Review |  LG 27GL850 Review | ||||
|---|---|---|---|---|---|
True Score | 76 | 82 | 76 | NR | NR |
Ranking | # 163 / 196 | # 68 / 196 | # 157 / 196 | # / 196 | # / |
Market Context |
The LG 27GN850-B is a mid-range gaming monitor released in 2020, intending to provide innovative features to gamers. It has a 144Hz refresh rate, comparing… |
The Gigabyte M34WQ has a much bigger 34-inch screen compared to the 27-inch LG 27GN850-B. Additionally, the Gigabyte display has HDR10 tech, which is missing… The Gigabyte M34WQ has a much bigger 34-inch screen compared to the 27-inch LG 27GN850-B. Additionally, the Gigabyte display has HDR10 tech, which is missing on the LG. However, the LG monitor boasts a better 280Hz refresh rate compared to the LG display’s 144Hz. Unlike the LG gaming monitor, the Gigabyte device has a KVM switch, which simplifies controlling multiple computers. |
The LG 27GN850-B has a much better 144Hz refresh rate than the 75Hz of the Lenovo Q27Q-10. The LG display also has a more ergonomic… The LG 27GN850-B has a much better 144Hz refresh rate than the 75Hz of the Lenovo Q27Q-10. The LG display also has a more ergonomic stand, which allows for a wider range of adjustments. |
The LG 27GN850-B features some improvements over its predecessor, the LG 27GL850-B. The newer monitor has wider SDR and HDR color gamuts, covering 99.8% and… The LG 27GN850-B features some improvements over its predecessor, the LG 27GL850-B. The newer monitor has wider SDR and HDR color gamuts, covering 99.8% and 88.8% of the sRGB and Adobe RGB xy color spaces respectively, compared to the older monitors’ 99.6% and 84.2% coverage. This means that the newer monitor is a better choice for media creators. It also has a quicker 6.8 ms total response time compared to the 7.8 ms of the older monitor. However, the older device has USB ports, which are lacking on the newer model. |
The LG 27GN850-B has a lower 144 Hz refresh rate compared to the 180 Hz maximum refresh rate of the LG 27GP850-B. Additionally, the LG… The LG 27GN850-B has a lower 144 Hz refresh rate compared to the 180 Hz maximum refresh rate of the LG 27GP850-B. Additionally, the LG 27GP850-B has a USB hub and a black frame insertion feature, which reduces the appearance of blur in some situations, but both features are not there on the LG 27GN850-B (this review). |
Display Type | LCD | LED | LCD | – | – |
HDMI Inputs | 2 | 2 | 1 | – | – |
HDR Format | Yes | Yes | n/a | – | – |
Max Resolution | 2560 x 1440 | 3440 × 1440 | 2560 x 1440 | – | – |
Panel Type | IPS | IPS | IPS | – | – |
Refresh Rate | 144 Hz | 144 Hz | 75 Hz | – | – |
Response Time | 1 ms | 1 ms | 4 ms | – | – |
Screen size | 27" | 34" | 27" | – | – |
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- $489.99
Score Card
E
Expert Score
74
*.75
We place a 75% weighted value on Expert Test Scores
C
Customer Score
82
*.25
We place a 25% weighted value on Customer Scores
True Score
76
Any product with a True Score above 70 is a Mixed Reviews
Expert Scores
Publications with higher Trust Ratings are given more weight.
101.4Category Trust Rating
75The LG 27GN850-B is impressive for gaming. It has an incredible response time whether you’re… Read MoreBy:
Samuel Breton
Customer Scores
- 88
(
4.4/5
)
47Ratings
- NR
(
NR/5
)
Ratings
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