
Acer Nitro 27-inch WQHD
Score: 86/100
LG 27G640A-B
Score: 88/100Rankings

The LG 27G640A-B is a 27-inch QHD IPS gaming monitor with a blistering 300 Hz refresh rate and 1 ms response, delivering ultra-smooth visuals. Its main trade-off is the lack of disclosed brightness/contrast data and no integrated speakers. Ideal for esports enthusiasts with a powerful GPU who value speed and color accuracy.

The Acer Nitro KG271U is a 27-inch WQHD IPS monitor offering a massive 320 Hz peak refresh and 0.5 ms response, delivering exceptional gaming speed and color accuracy. Its HDR400 implementation and moderate brightness keep it from competing with higher-end HDR displays, and the price reflects its premium feature set. Ideal for competitive gamers and creators who need fast performance and accurate colors.
| Attribute | ![]() | ![]() |
|---|---|---|
27 inchesbest | 27 inchesbest | |
320 Hzbest | 300 Hz | |
| ↓ lower better | 0.5 msbest | 1 ms |
350 nitsbest | — | |
95 %best | 95 %best | |
1,000best | — | |
| ↓ lower better | 4.48 kgbest | 5.5 kg |
1best | 1best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Display(2) | ||
Refresh Rate (Hz) | 320 Hz | 300 Hz |
Response Time (ms) | 0.5 ms | 1 ms |
General(1) | ||
Warranty (years) | 3 years | 1 years |
Build & Design(3) | ||
Weight (with stand) (kg) | 4.48 kg | 5.5 kg |
Width (with stand) (mm) | 613.6 mm | 614.68 mm |
Height (with stand) (mm) | 458.3 mm | 538.48 mm |
Audio(1) | ||
Built‑in Speakers | true | false |


Products in the top-left offer the best value (high score, low price).

Professional reviewers note that the XV272U V3 balances high-refresh gaming performance with color accuracy, making it suitable for both competitive play and content creation. The 95 % DCI-P3 gamut and DisplayHDR 400 certification satisfy professional color standards, while the 180 Hz panel and FreeSync Premium deliver smooth, tear-free visuals.
User feedback in the available data is limited to a 5-star seller rating, with no detailed comments. The lack of specific consumer reviews suggests generally positive sentiment but provides no insight into real-world performance or reliability.

Professional reviewers and editors have not published detailed tests for the LG 27G640A yet; product listings highlight its 300 Hz speed, HDR400 support, and dual adaptive-sync technologies, but performance claims remain unverified.