NVIDIA
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 2.1, USB Type-C, Tilt/Height/Swivel/Pivot Stand, Black
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
Gaming is about to get fast.Experience lightning-fast, crystal-clear gameplay with the 27" QHD IPS UltraGear gaming monitor, built for competitive performance and stunning visuals.A blistering 300Hz refresh rate¹ and 1ms (GtG) response time deliver ultra-smooth motion, while up to 95% DCI-P3 color gamut expression and VESA DisplayHDR 400 bring games to life with incredible contrast and vibrant detail. NVIDIA G-SYNC compatibility and AMD FreeSync Premium ensure tear-free, responsive play.The sleek, design offers swivel, tilt, height, and pivot adjustability for the perfect setup. Plus, stay…
SpecPicks Verdict
SpecPicks classifies LG 27G640A-B 27-inch Ultragear QHD (2560 x 1440) IPS Gaming Monitor… as a solid pick with broad community endorsement in the gaming monitors category, based on 142 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. NVIDIA's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for gaming monitors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.4★ customer rating
- ✓ Backed by NVIDIA's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
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), vibrant HDR visuals, and tear-free gameplay—plus pro-level adjustments and versatile ports for your perfect setup.
- 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 every scene stays crisp and vibrant.
- 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 shadows that make every game more vibrant and every scene more cinematic.
- 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. Experience fluid motion and razor-sharp clarity, even in the most intense action.
- 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.
- Ultimate Frame Sync: FreeSync Premium & G-SYNC Compatible - Say goodbye to screen tearing and stutter. With AMD FreeSync Premium and NVIDIA G-SYNC compatibility, this UltraGear monitor delivers ultra-smooth, tear-free visuals, giving you perfect frame sync across PC and next-gen console gaming.
Full Specifications
| Brand | LG |
|---|---|
| Color | Black |
| Shape | Flat |
| Brightness | 400 Candela per Square Meter |
| Model Name | 27G640A-B.AUSQ |
| Resolution | QHD Wide 1440p |
| Color Gamut | 95.0 |
| Screen Size | 27 Inches |
| Aspect Ratio | 16:9 |
| Connectivity | USB |
| Display Type | LED |
| Model Number | 27G640A-B.AUSQ |
| Refresh Rate | 300 Hz |
| Adaptive Sync | FreeSync Premium, G-Sync Compatible |
Ready to buy?
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 2.1, USB Type-C, Tilt/Height/Swivel/Pivot Stand, Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
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