Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteiTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
You do not need a PC that renders 1,000 frames per second just to select a 1,000Hz monitor mode. You do need hardware that supports the particular monitor’s maximum refresh mode. For the LG UltraGear 25G590B-B, LG specifies Windows 11, DisplayPort 2.1, and a supported NVIDIA RTX 50-series or AMD Radeon RX 9070, RX 9060, RX 7900-series, or newer graphics card. These are requirements for this LG model, not a universal standard for every 1,000Hz display.
What hardware does the LG 25G590B-B require for 1,000Hz?
LG lists the following requirements for the UltraGear 25G590B-B’s maximum 1,000Hz mode. Check the exact monitor’s support page and manual before applying them to another display.
| Part or setting | LG’s stated requirement or qualification |
|---|---|
| Operating system | Windows 11. LG’s U.S. announcement identifies this as a requirement for the model’s maximum refresh mode. |
| Graphics card | NVIDIA RTX 50-series or AMD Radeon RX 9070, RX 9060, RX 7900-series, or newer. This is LG’s compatibility requirement for the 1,000Hz mode, not a promise of 1,000 FPS in every game. |
| Display connection | DisplayPort 2.1. Check the graphics-card output, monitor input, and cable path against the monitor’s instructions. |
| Resolution and test scope | LG Canada says its internal test verified 1,000Hz signal input at Full HD (1920 × 1080) with the listed NVIDIA and AMD graphics-card families. This is manufacturer signal-input verification, not an independent game benchmark. LG Canada’s product information describes that test. |
For another 1,000Hz monitor, do not assume the same Windows version, graphics card, port, or resolution applies. Its maker’s specifications determine which combinations are supported.
Does a 1,000Hz monitor require 1,000 FPS?
No. Refresh rate is how often the display can update; FPS is how many frames the PC renders. A monitor can operate in a 1,000Hz mode while a game renders fewer than 1,000 frames per second. LG explicitly cautions that 1,000Hz support “does not imply or guarantee” 1,000 FPS or more in any particular game.
#1 Best Overall
- The World’s First Full HD 1080p Native 1000Hz Gaming Monitor - See faster. Aim sharper. With native 1000hz at Full HD, experience ultra-fast gameplay with sharp detailed visuals that make every esports moment smoother, cleaner, and more precise.
- What Makes Native 1000Hz on Full HD Different? - Unlike HD 1000Hz displays that trade clarity for speed, the 25G590B delivers native 1000Hz performance with Full HD—the esports standard. Get the speed competitive players demand with the visual precision needed to stay locked in on the action.
- The Advantage of 1000Hz Gaming - Native 1000Hz delivers up to 1000 visual updates per second, helping improve target tracking and motion clarity during high-speed competitive play. From flick shots to precision micro-adjustments, every movement feels more responsive and controlled.
- Up to 1100Hz Overclocked Speed - Unlock up to 1100Hz overclock (O/C) for even smoother motion, faster responsiveness, and enhanced target tracking. Designed to help competitive players stay focused and react faster during the most demanding esports moments.
- Less Blur. More Control with MBR Pro. - MBR Pro helps reduce motion blur during fast-paced gameplay, making moving objects appear sharper and easier to track. Stay focused on targets with improved motion clarity designed for competitive esports performance.
Actual frame rate depends on the game and system, including the CPU, GPU, memory, graphics settings, game-specific frame-rate limits, operating-system version, and driver version, according to LG. Its stated monitor requirements therefore tell you what is needed to enable the display mode—not what will sustain a particular frame rate in your games. There is no universal CPU model or RAM capacity established for achieving 1,000 FPS across games.
How to enable and verify the refresh rate in Windows 11
- Connect the monitor using the port and cable configuration specified for its maximum mode. For the LG 25G590B-B, LG specifies DisplayPort 2.1.
- Open Settings > System > Display > Advanced display. If you use multiple displays, select the monitor you want to configure.
- Choose a refresh rate from the list, then check the reported resolution and refresh rate. Microsoft notes that available rates depend on the display; a rate marked with an asterisk may require a resolution change to use it. Microsoft’s instructions explain the setting and asterisk.
- Confirm the expected resolution remains active after selecting the target rate. If the maximum mode is missing, compare the monitor’s specifications with the GPU output, monitor input, cable, driver, and selected display mode.
What about overclocking and variable refresh rate?
LG lists a native 1,000Hz mode and up to 1,100Hz overclocked operation for the 25G590B-B. The 1,100Hz overclock has a feature trade-off: LG says it does not support AMD FreeSync Premium, and the monitor is certified for NVIDIA G-SYNC compatibility at 1,000Hz. LG also states that its MBR Pro blur-reduction mode disables FreeSync Premium and G-SYNC compatibility. Check the monitor’s documentation for which combination of refresh rate and display features is available in the mode you intend to use.
Rank #2
- Quality Visuals: The XV273U 27" IPS monitor with 2560 x 1440 WQHD resolution in a 16:9 aspect ratio presents stunning, high-quality images with excellent detail. The zero-frame design does away with the thick frames found on conventional monitors freeing up precious screen space, so you have more to look at from edge to edge.
- AMD FreeSync Premium Technology: Say “goodbye” to stuttering and tearing. With AMD FreeSync Premium, the monitor’s frames are synced with the graphics card’s frames, which eliminates screen tearing and provides the smoothest gaming experience.
- Up to 1000Hz Refresh Rate: With a crisp WQHD (2560 x 1440) resolution, a smooth 540Hz refresh rate, and support from AMD FreeSync Premium technology, the Nitro XV273U is sure to deliver flawless gameplay. Gamers can also choose a higher refresh rate option with a HD resolution at 1000Hz based on the demands of the game and the task at hand thanks to DFR technology.
- Goodbye Ghosting: With up to a 0.5ms GTG response time and VRB Pro, the XV273U Gaming Monitor eliminates smearing and ghosting. Fast-moving action and dramatic transitions are rendered smoothly with enhanced motion clarity and sharpness.
- Brilliant Colors: Boasting a DCI-P3 95% color gamut, Delta E<2 and VESA DisplayHDR 600, vibrant colors leap from the screen. Revel in the finest visuals your games can deliver!
AMD explains that FreeSync synchronizes a compatible display’s refresh with the graphics card’s frame rate, and warns that some display presets or custom settings can disable FreeSync. Its behavior should not be assumed identical across every monitor mode. AMD’s FreeSync guidance covers synchronization and display-setting considerations.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
How to choose a compatible PC and monitor setup
Decide whether your goal is to enable the monitor’s maximum refresh mode or to reach a particular in-game frame rate. The first is answered by the monitor maker’s compatibility requirements; the second needs evidence for the specific game, settings, and PC configuration.
Rank #3
- 【Epic QD-OLED 500Hz Monitor】 A new generation of gaming monitor is emerging, this new 27 Inch 1440p 500hz monitor adopts QD - OLED panel and deliver 99% DCI-P3 color gamut, 1,500,000:1 contrast ratio, 1.07B(10 bit) colors, more detailed quality picture and a lifelike gaming experience.
- 【Rare 500Hz Refresh Rate & 0.03ms】INNOCN 2780M - Ultra-fast 500Hz OLED display. The faster speed lets you respond quickly to opponents and stay a step ahead of the competition. VRR Supported. Support 48Hz~500Hz(240hz/360hz/480hz etc)
- 【Powerful Connectivity】 2780M 2560 x 1440p 500hz gaming monitor delivers powerful connectivity: 2 x DP, 2 x HDMI, 1 x 3.5MM Audio Jack, wide compatible with laptop, Mac, Mini PC, Phones, Tablets, Gaming Console( like Switch, PS5/4/3, XBOX Series etc) . It's much more convenient.
- 【Support MAC-VIEW Modes】Allows adjustment via OSD to optimize Mac visuals, maximize the MAC color matching and reduce color unevenness, If connect a Mac device, this monitor will be the best assistant to extend the screen
- 【Adaptive-Sync & G-SYNC Compatible】This OLED 27 inch 500Hz computer gaming monitor with G-SYNC compatibility for a tear-free experience & low latency, immersive in the gaming world, designed for FPS / RTS. Compatible with most of graphic cards and games
- Maximum mode: Compare the supported resolution and refresh rate, including whether a higher number is native or overclocked.
- Connection: Verify the required DisplayPort or HDMI version and confirm that the GPU output, cable, and monitor input support the intended mode.
- Game performance: Look for benchmarks for the actual game and the CPU/GPU configuration you are considering. A compatible graphics card alone does not establish a specific FPS result.
- Adaptive sync and blur reduction: Check whether FreeSync or G-SYNC compatibility remains available at the selected refresh rate and whether a blur-reduction mode disables it.
- Windows confirmation: Make sure Windows lists the target rate for the correct display while retaining the resolution you want.
LG’s 25G590B-B is one concrete example: its published 1,000Hz requirements concern Windows 11, DisplayPort 2.1, and the specified GPU families, while LG’s internal test describes Full HD signal input. Those details should not be generalized to a different monitor without checking its own documentation.
Quick Recap
Best Value
- 27" QHD DISPLAY: Immerse yourself in stunning visuals with a 27-inch QHD (2560x1440) resolution, delivering crisp detail and vibrant colors.
- 240Hz REFRESH RATE & 0.03ms RESPONSE TIME: Enjoy smooth, blur-free gameplay with a lightning-fast 240Hz refresh rate and ultra-low 0.03ms (GtG) response time.
- HDR400 TRUE BLACK: Experience deeper blacks and brighter highlights with HDR400 True Black certification, enhancing contrast and visual realism.
- QD OLED TECHNOLOGY: Quantum Dot OLED panel ensures rich colors with 147.6% sRGB and 110.2% DCI-P3 color gamut coverage, providing stunning color accuracy
- ADAPTIVE-SYNC TECHNOLOGY: Eliminate screen tearing and stuttering with Adaptive-Sync compatibility, ensuring a seamless and fluid gaming experience.
Rank #4
- 27” 240Hz 1500R Curved FHD 1080P Gaming Monitor for Game Play.
- Prioritizes Gaming Performance: Up to 240Hz high refresh rate, more immersive 1500R Curvature, FreeSync, MPRT 1ms Response Time, Black Level adjustment(shadow booster), Game Modes Preset, Crosshair.
- Cinematic Color Accuracy: 130% sRGB & DCI-P3 95% color gamut, 4000:1 contrast ratio, 300nits brightness, HDR, Anti-flicker; Anti-Glare.
- Plug & Play Design: HDMI & DP1.4 & Audio Jack(No built-in speakers), durable metal stand, tilt -5°~15, VESA 100*100mm compatible.
- Warranty: Money-back and free replacement within 30 days, 1-year quality warranty and lifetime technical support. Pls contact SANSUI service support first if any product problem.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
