LG UltraGear 25G590B-B: Specs, Features, Pros & Cons
The 25G590B-B exists for one number: 1000 Hz, and unlike other displays that have claimed a figure like it, this one runs there at full 1080p. LG makes the point directly, contrasting it with 'HD 1000Hz displays that trade clarity for speed' – there is no dual-mode resolution drop here. A 1100 Hz overclock sits on top, with a catch worth knowing before you enable it: at 1100 Hz FreeSync Premium is not supported and G-SYNC Compatible certification covers only 1000 Hz, so the overclock and tear-free gaming are mutually exclusive.
The hardware gate is the other thing to check first. LG states that reaching 1000 Hz requires Windows 11, an NVIDIA RTX 50-series or AMD Radeon RX 9070, 9060 or 7900 or newer, and a DisplayPort 2.1 connection. Almost no existing PC meets that.
The rest of the sheet is ordinary fast IPS, and deliberately so. Brightness is 400 cd/m2 typical with a 320 minimum, contrast is 1000:1, colour is 99 per cent sRGB with no DCI-P3 figure published, and HDR is DisplayHDR 400 – a badge rather than a capability. Response time is 1 ms, and LG adds MBR Pro for motion blur reduction alongside Dynamic Action Sync, Black Stabilizer and a crosshair overlay.
Connectivity is narrow. Two HDMI 2.1 ports, one DisplayPort 2.1 with UHBR 20, a headphone jack, and a USB-C port that LG's own table lists as upstream only – despite the product title calling this a USB-C monitor, there are no downstream ports and no stated power delivery. There are no speakers. The stand tilts, raises and swivels but does not pivot, on a 100 by 100 mm VESA pattern.
At 24.5 inches actual and 88 pixels per inch, this is a competitive-shooter instrument rather than a general-purpose display. It is pre-order as this is written, with LG's shipping starting 1 September.
Category strengths
Where the LG UltraGear 25G590B-B beats the average
- A much higher refresh rate ?1,000 Hz vs 213.58 Hz (avg)
- Has USB-C ?
- A faster response time ?1 ms vs 1.46 ms (avg)
- Has motion blur reduction ?
- More HDMI ports ?2 vs 1.7 (avg)
- Has height adjustment ?
- Has swivel adjustment ?
- Has headphone output ?
- Has variable refresh rate ?
Where the LG UltraGear 25G590B-B trails the average
- A much lower contrast ratio ?1000:1 vs 499721:1 (avg)
- No USB hub ?
- A smaller screen ?25" (63.5 cm) vs 28.97" (73.58 cm) (avg)
- A lower pixel density ?88 ppi vs 123.24 ppi (avg)
- No pivot adjustment ?
- No picture-by-picture ?
- No local dimming ?
- No built-in speakers ?
- A lower color depth ?8 bit vs 9.49 bit (avg)
- Fewer DisplayPort inputs ?1 vs 1.06 (avg)
Editor’s note
This monitor makes sense for exactly one person: a competitive shooter player with a current-generation graphics card who has already decided that frame rate beats everything else. For anyone else it is an expensive low-resolution panel, and the price is not a typo – it costs more than several 4K OLEDs in this catalogue.
Check your hardware before your budget. LG's own footnote names the operating system, two specific current GPU generations and the newest DisplayPort revision; if your machine is a generation older, the monitor will run, but not at the number you bought it for.
Then decide about the overclock. It sounds like a free upgrade and is not: it takes you outside G-SYNC certification and drops FreeSync entirely, so you gain a hundred hertz and lose adaptive sync. In practice the native rate with VRR is the setting that makes sense, and the overclock is a benchmark curiosity.
Do not buy it for anything but games. The brightness, contrast and HDR tier are what a much cheaper monitor offers; the entire cost here is in the panel's speed. The USB-C port is worth understanding too: LG's table lists it as upstream only, so the 'USB-C Monitor' in the title does not mean a docking display.
One caution about status. The page is pre-order with shipping beginning 1 September, and LG has published no manual or spec sheet yet, so stand ranges, port layout and power draw are undocumented. Independent measurements do not exist either – nobody has yet tested whether the pixel response actually keeps up with a refresh this fast.
Specifications
Quality bars are generated automatically against 101 other monitors.
Picture
Gaming
Ergonomics & design
Connectivity
Features
Sources and verification
Where the specifications come from
- Official product pagelg.com
Verification
- First published
- Specifications last checked
- Sheet completeness
- 34 of 42 specifications verified; the rest show as Unknown and are never estimated or scored
- Basis
- Research-based: specifications and editorial text were compiled from the documents listed here and the manufacturer’s published data. We have not tested this unit ourselves; where independent measurements are mentioned they belong to the linked publication.
Monitors with similar specs to the LG UltraGear 25G590B-B
Ratings & reviews
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The bottom line
The LG UltraGear 25G590B-B earns a VS Score of 45, a solid mid-pack result among the 102 monitors we compare here.
- Who it’s for
- Competitive shooter players with a current-generation GPU and the right DisplayPort revision, who want the highest refresh rate that exists at full resolution.
- Who should look elsewhere
- Everyone else – the picture specs are entry-level at a flagship price, and older PCs cannot drive the headline number.
- The trade-off that matters
- The fastest panel money can buy, paid for with ordinary image quality, a narrow port selection and a hardware requirement most machines do not meet.
- The main alternative
- Samsung Odyssey G4 G40H 25-inch – the same size and resolution at 300 Hz for a fraction of the price, if you want a fast 1080p panel rather than the record.
The VS Score is calculated from the weighted specifications above, compared with every other monitor we track — a shortlisting guide, not a substitute for your own priorities. See how we score.
