25G590B: The Essential 1000 Hz Monitor Guide

25G590B is a US$999.99 answer to a question almost nobody with a day job needs to ask: how much should I pay to cut a 280 Hz screen’s refresh interval by another 2.57 milliseconds? LG’s 24.5-inch UltraGear runs at a native 1,000 Hz at 1920 x 1080, with an advertised 1,100 Hz overclock. That is real product hardware, not a trade-show prototype. It is also a very specialized monitor that asks you to spend flagship money on Full HD.

My verdict is simple. Competitive players who can sustain four-digit frame rates should wait for independent motion testing. Everyone building one desk for work and games should buy the much cheaper 1440p alternative. LG has opened US preorders, but Canadian pricing and availability were not announced when I checked on August 25, 2026.

Table of Contents

• 25G590B Specs That Matter
• The Sensible Comparison
• What 1,000 Hz Actually Buys
• Your PC Is Part of the Price
• Why It Is a Poor Work Monitor
• The Cheaper Monitor I Would Buy
• Who Should Skip This
• Frequently Asked Questions
• The Short Version

25G590B Specs That Matter

LG’s current product page lists a 24.5-inch IPS panel, 1920 x 1080 resolution, native 1,000 Hz refresh, DisplayHDR 400, 99% sRGB coverage, and a typical 1,000:1 contrast ratio. The stand adjusts for height, swivel, and tilt. Video inputs include DisplayPort 2.1 UHBR 20 and two HDMI 2.1 ports, plus a four-pole headphone jack.

The advertised response time is below 1 ms GtG. That is a manufacturer specification, not a measured average across transitions, and LG has not published an overshoot chart. The same caution applies to Motion Blur Reduction Pro and the monitor’s AI scene and sound modes. Feature names are cheap. Clean motion at 1,000 Hz is not.

LG says 1,000 Hz requires Windows 11, DisplayPort 2.1, and a recent GPU: GeForce RTX 50 series, Radeon RX 9070, RX 9060, RX 7900 series, or newer. The 1,100 Hz overclock also drops AMD FreeSync Premium support, while G-SYNC compatibility is certified only at 1,000 Hz. Canadian price, Canadian release date, a Canadian warranty page for this model, and independent latency measurements remain unannounced or unavailable.

The Sensible Comparison

The established reference is the Alienware AW2726DL, not another four-digit-refresh experiment. Dell Canada currently lists it at CA$299.99. It gives a mixed work-and-gaming desk a 27-inch 2560 x 1440 IPS panel at 280 Hz, a fully adjustable stand, 400-nit brightness, and a three-year advanced exchange warranty.

Buying detail	LG 25G590B	Alienware AW2726DL
Price checked	US$999.99 preorder	CA$299.99 at Dell Canada
Canadian availability	Not announced	Available
Panel and size	24.5-inch IPS	27-inch IPS
Resolution	1920 x 1080	2560 x 1440
Maximum refresh	1,000 Hz native, 1,100 Hz overclock	280 Hz
Typical brightness	400 nits	400 nits
Adaptive sync	G-SYNC Compatible, FreeSync Premium	FreeSync Premium, VESA AdaptiveSync
Main drawback	Extreme price, Full HD, demanding PC requirements	Far lower refresh, no USB hub

The comparison is lopsided because the products solve different problems. The 25G590B serves elite esports players chasing motion clarity at low resolution. The Alienware serves people who want one affordable screen for documents, games, and everything between. Our full AW2726DL guide covers its limitations, including the absent USB hub and basic HDR performance.

What 1,000 Hz Actually Buys

A 1,000 Hz display begins a new refresh every 1 millisecond. A 280 Hz display does so every 3.57 milliseconds. The gap is 2.57 milliseconds before pixel response, input processing, the game engine, network latency, and your hands join the queue. That reduction can matter at the edge of competitive play, but it does not turn a slower player into a sponsored one.

Tom’s Hardware reports that US preorders opened at US$999.99, with shipping expected to start September 1. Its report does not include an independent response-time or input-lag test. The Canadian exact-model search also had zero independent editorial hands-on reviews. I would not spend this much based on a refresh counter and internal testing alone.

Your PC Is Part of the Price

Owning a compatible GPU only clears the connection requirement. The game must still render close to 1,000 frames per second for each refresh to carry a genuinely new frame. Lightweight competitive titles at reduced settings are the plausible target. A demanding new game with ray tracing is not going to become a 1,000 fps showcase because the cable is optimistic.

This makes the real purchase larger than US$999.99. A player may need a current high-end GPU, a fast gaming CPU, carefully chosen settings, and a title that scales cleanly. If your frame counter lives below 300 fps, the extra refresh capacity mostly sits idle. The broader gaming monitor versus office monitor guide explains why refresh rate is only one part of a useful desk display.

Why It Is a Poor Work Monitor

Full HD at 24.5 inches works out to roughly 90 pixels per inch. The AW2726DL reaches 109 pixels per inch at 27 inches. That difference gives the cheaper Dell more room and finer text, useful benefits in a browser, spreadsheet, or code editor. Refresh rate cannot sharpen a letter that lacks pixels.

The LG also lacks the desk features I would expect near this price. Regional specification pages list no USB-C video, power delivery, KVM, Ethernet, speakers, or USB hub. There is no pivot adjustment either. The compact stand and headset hook are thoughtful, but they do not replace a dock. If work matters as much as games, the Q27G4ZRAD specification analysis shows how much more balanced a fast QHD screen can be.

The Cheaper Monitor I Would Buy

I would buy the Alienware AW2726DL from Dell Canada at CA$299.99 and keep the difference. It is not a substitute for a professional esports training monitor. It is the better purchase for nearly everyone else, with higher resolution, more screen area, strong refresh, a Canadian storefront, and a stated three-year warranty.

The 25G590B becomes interesting after a serious lab measures full-transition response times, overshoot, input lag, and backlight-strobing behaviour at 1,000 Hz. A Canadian launch price would help too. Until then, LG is selling the highest number while Dell is selling the better desk.

Who Should Skip This

Skip it if you work on the same screen, prefer detailed single-player games, use a laptop dock, need a USB hub, or rarely exceed 300 fps. Streamers should also account for the second display and capture workflow that this monitor does not simplify. The ideal buyer is narrow: a highly competitive FPS player with suitable hardware, suitable games, and evidence that 280 Hz is already the limiting part of the setup.

Frequently Asked Questions

Is the 25G590B really a native 1,000 Hz monitor?

Yes. LG specifies native 1,000 Hz at 1920 x 1080 rather than a lower-resolution dual mode. The company also advertises a 1,100 Hz overclock, but independent performance measurements were not available when checked.

How much does it cost?

The US preorder price is US$999.99. LG had not announced Canadian pricing or availability as of August 25, 2026, so any Canadian-dollar estimate would be guesswork.

Does it need DisplayPort 2.1?

LG says its maximum refresh modes require DisplayPort 2.1 UHBR 20, Windows 11, and a supported recent GPU. HDMI 2.1 is present, but the company’s 1,000 Hz requirement specifically names DisplayPort 2.1.

Is 1,000 Hz useful for office work?

No practical office task justifies the price. A higher-resolution 1440p or 4K panel gives text and workspace benefits you can see all day, while 1,000 Hz targets competitive motion at very high frame rates.

The Short Version

The 25G590B is technically impressive and economically silly for a normal desk. Its native 1,000 Hz IPS panel cuts the refresh interval to 1 millisecond, but it stays at 1080p, costs US$999.99, requires serious PC hardware, and lacks independent measurements. Wait if you compete at the level it targets. Buy the CA$299.99 AW2726DL if you want a fast monitor that also earns its space from Monday to Friday.