LG 27G640A-B 27-inch Ultragear QHD
(2560 x 1440) IPS Gaming Monitor, 300Hz, 1ms, NVIDIA G-Sync, AMD FreeSync Premium, VESA DisplayHDR 400, HDMI…
Price as of 2026-06-08. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$73–$183
- Mid-range:$183–$482← You are here
- Premium:$482+
Is This Right For You?
- •LG loyalists — the brand spans 52 products in our database
- •Rating sits in the bottom 10% of Gaming Monitors — higher-rated options exist
- •SANSUI 32 Inch Curved 240Hz Gaming Monitor High Refresh offers a better rating (4.5/5) at a similar or lower price ($180)
- •Acer Nitro 27 Inch QHD 2560 x 1440 IPS Gaming Monitor — 46% cheaper at $160 (Score A)
- •SANSUI 32 Inch Curved 240Hz Gaming Monitor High Refresh — higher rated at 4.5/5 ($180)
📊 Based on data analysis of 31 products in this category.
Mubboo Score: B-
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other Gaming Monitors
Computed from live Amazon rating, review count, and price across 31 Gaming Monitors available to US consumers · last refreshed 2026-06-08.
How It Compares
This Product LG 27G640A-B 27-inch Ultragear QHD | Most Popular SANSUI 32 Inch Curved 240Hz Gaming Monitor High Refresh | Best Rated Acer Nitro 27 Inch QHD 2560 x 1440 IPS Gaming Monitor | Best Value Sceptre Curved 24.5-inch Prime Gaming Monitor up to 240Hz | |
|---|---|---|---|---|
| Price | $297.26 | $179.99 | $159.99 | $167.97 |
| Rating | 4.3/5 | 4.5/5 | 4.6/5 | 4.5/5 |
| Reviews | 171 | 5,426 | 956 | 4,167 |
| Mubboo Score | B- | A | A | A |
Quick Specs
- Color
- Black
- Shape
- Flat
- Brightness
- 400 Candela per Square Meter
- Resolution
- QHD Wide 1440p
- Color Gamut
- 95.0
- Item Weight
- 12.1 Pounds
- Screen Size
- 27 Inches
- Aspect Ratio
- 16:9
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Check for ghosting issues if you plan to play below the monitor's maximum refresh rate, and verify the stand's adjustability and built-in speaker availability before purchasing.
- Excellent value for money
- Vibrant and sharp picture quality
- Smooth, high refresh rate performance
- Immersive curved screen
- Severe ghosting at lower refresh rates
- Flimsy stand with limited adjustability
- Inconsistent build quality and premature failure
Expert Picks in Gaming Monitors
- Dell Alienware AW2725D — affordable OLED gaming
- MSI MPG 271QRX — powerful PCs and competitive gaming
- Dell Alienware AW2725DM — budget-conscious gamers
- KTC M27P6 — 4K gaming
- Dell UltraSharp U2725QE — Best picture quality
- Asus ProArt Display PA278CGV — Ideal for work and play
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
- 📹 Best Gaming Monitor 2026 | 1440p, 240hz, 4K & OLED | Best Gaming Monitors for PC PS5 XBox — PC Builder
- 📹 The Only 7 Gaming Monitors Worth Buying in 2025 — Blink Gaming & Gadgets
- 📹 2026 4K OLED Monitor Buying Guide — The Display Guy
Key Features
- ✦Blazing Speed. Brilliant Color. Total Control. - Dominate the game with a 27" QHD IPS display built for speed, clarity, and precision. Enjoy ultra-smooth action with 300Hz/1ms (GtG…
- ✦27" QHD IPS Clarity - Enjoy crisp, detailed visuals with QHD (2560x1440) IPS resolution on a vibrant 27" IPS display. Wide viewing angles keep colors vivid from any position, so ev…
- ✦Vivid Color and HDR Brilliance - Immerse yourself in lifelike visuals with up to 95% DCI-P3 color gamut and VESA DisplayHDR 400. Enjoy rich hues, bright highlights, and deep dark s…
- ✦300Hz Refresh Rate for the Win - React faster and play smoother with a blistering 300Hz refresh rate—perfect for high-speed competitive gaming where every millisecond counts. Exper…
- ✦1ms (GtG): Astounding Gaming Speed - Play with a near-instantaneous 1ms response time, which minimizes ghosting for gaming visuals that are sharp, clear and buttery smooth.
Source: product listing on Amazon.
About LG
- 52 products in our database
- Average rating: 4.4/5 across all products
- Price range: $79.95 – $3699
- Categories: 4K TVs, air-conditioners, Air Purifiers, analog-to-digital-dtv-converters, blu-ray-players-and-recorders, Brooms
If not the 27G640A-B 27-inch Ultragear QHD, consider these
Bottom Line
LG 27G640A-B 27-inch Ultragear QHD earns Mubboo Score B-. Priced at $297 — a mid-range option, below the category average of $378. Rated 4.3/5 from 171+ reviews. Strong buy if: lg loyalists. Skip if: rating sits in the bottom 10% of gaming monitors — SANSUI 32 Inch Curved 240Hz Gaming Monitor High Refresh (Score A, $180) may fit better.
Frequently Asked Questions
Is the LG 27G640A-B 27-inch Ultragear QHD worth buying in 2026?
It earns a Mubboo Score of B-, with a 4.3/5 rating from 171 reviews — better than 10% of Gaming Monitors we track.
How much does the LG 27G640A-B 27-inch Ultragear QHD cost?
It is currently $297.26 — mid-tier pricing for Gaming Monitors.
How does the 27G640A-B 27-inch Ultragear QHD compare to other Gaming Monitors?
The category's most-reviewed alternative is the SANSUI 32 Inch Curved 240Hz Gaming Monitor High Refresh (4.5/5, 5,426 reviews, $179.99). The 27G640A-B 27-inch Ultragear QHD carries a Mubboo Score of B- vs A.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-08) and may change.