ASUS ROG Strix 320Hz QHD Monitor Drops to $249 for Prime Day 2026

Amazon has the ASUS ROG Strix XG27ACMS at $249 ahead of Prime Day 2026, $100 off its typical $349 and the lowest price the 320Hz QHD gaming monitor has ever listed for, per the Amazon price tracker camelcamelcamel. The deal is live now, before Prime Day 2026 officially begins on June 23. The cut is 29%.

The same spec sheet on QD-OLED 1440p monitors costs well above the XG27ACMS. The 27-inch LG UltraGear 27GS93QE sits at $499 after a $400 cut from $899, per PCMag’s 2026 roundup of best cheap gaming monitors. ASUS’s 34-inch ROG Strix QD-OLED ultrawide is taking $350 off its typical price this week, per Mashable.

The Deal at $249

Mashable’s deals desk first reported the listing on June 4, 2026, pegging the price at $249 from a typical $349, a 29% cut, with the panel shipped and sold by Amazon itself, free returns included. Technobezz’s price tracker analysis ran the same numbers: 28% off, $96.88 in savings, undercut the monitor’s 30-day average by nearly $100. Both outlets pointed to camelcamelcamel’s history to mark the listing as the lowest the monitor has been, a level it had not hit since December of last year.

The panel itself is the 27-inch QHD model ASUS released at Computex 2025. The 2560 x 1440 IPS panel runs at 320Hz when overclocked, with 0.3ms minimum response time, and the full feature set, drawn from the official spec sheet and the Computex 2025 launch coverage, is in the table below. The Amazon listing is the deal at the 27-inch 1440P USB-C HDR product page, with the manufacturer’s 27-inch 1440P USB-C HDR spec page carrying the canonical features and the XG27ACMS launch coverage at Computex 2025 carrying the 1ms G2G and 350/500 nit brightness figures.

The headline spec, at a glance.

How a Fast IPS Panel Reaches 320Hz

Fast IPS is the technical reason this monitor can do 320Hz QHD at $249 in 2026. The panel uses rapid liquid crystal response and overdrive tuning to keep pixel transitions short, which is what holds the 1ms G2G spec ASUS and TFTCentral both report. That 1ms G2G response time, paired with the 320Hz OC refresh rate, is the headline spec combination on the panel.

The monitor’s standout spec is its ELMB Sync blur reduction, which lets the strobing backlight run at the same time as variable refresh rate. Older ELMB forced the user to choose between motion blur reduction and VRR; ELMB Sync combines the two. The same Variable Overdrive 2.0 system ASUS ships on its higher-tier ROG monitors dynamically adjusts the overdrive setting as frame rates fluctuate. The panel keeps up at 320Hz OC without the inverse ghosting cheaper IPS panels show at their overdrive ceiling.

Three specs in the table are worth calling out beyond the headline numbers. The monitor ships with DisplayHDR 400 support, the entry-level VESA HDR tier; the 500-nit HDR peak is short of the 1,000-nit tier DisplayHDR 1000 demands, a ceiling that shows up in the side-by-side test against OLED and Mini-LED alternatives. The USB-C port supports 15W of power delivery alongside DisplayPort Alt Mode, which is enough to keep a thin-and-light laptop charged slowly while the monitor handles the video signal, but not enough to power a full workstation dock.

Two features the spec sheet does not lead with: the stand includes tilt, height, swivel, and rotate adjustments, plus a built-in phone holder in the base, an unusual ergonomic touch at this price. The DisplayWidget Center software replaces the rear joystick with a mouse-driven menu in the ASUS app, a quality-of-life feature that has shipped on ROG Strix monitors since 2024.

320Hz QHD Sits at $249 in 2026

The XG27ACMS launched at Computex 2025 with pricing and availability unconfirmed, per TFTCentral’s launch coverage, and reached retail at its typical $349 list price. As of June 18, 2026, the same monitor is at $249 on Amazon, a 29% cut from the typical price, in a 2026 monitor market where 320Hz QHD IPS sits at the budget end of the 27-inch 1440p price spread per PCMag’s roundup.

PCMag’s 2026 roundup of best cheap gaming monitors lists the XG27ACMS at $249 as the entry point for 27-inch 1440p IPS, with the LG UltraGear 27GS93QE QD-OLED at $499 as the step-up option, and the Alienware AW3225DM, a 32-inch 1440p 180Hz curved IPS monitor, at $249 on a different size and refresh tier. The XG27ACMS lands at the budget end of that 27-inch 1440p price spread, with 320Hz OC as the spec that distinguishes it from the 180Hz and 240Hz IPS alternatives.

The 2026 monitor market shows the same pattern across the rest of the lineup. AMZFAST’s Computex 2026 lineup included a 280Hz OLED and 400Hz esports IPS panels at price points that would have been flagship territory a year ago, per AMZFAST’s Computex 2026 monitor reveal. Acer’s Computex 2026 monitor stack pushed 1000Hz refresh rates into 4K panels, per the Computex 2026 high-refresh monitor coverage, even if the higher modes came with trade-offs.

The 320Hz refresh rate, USB-C connectivity, and sub-$250 price tag make this one of the better value high-refresh 1440p monitors available right now.

Technobezz wrote in its deal analysis, framing the XG27ACMS as a “genuine price cut on a premium gaming display.”

IPS at $249 vs QD-OLED Above $499

The QD-OLED 1440p alternative costs well above the XG27ACMS. The closest same-size competitor in the 2026 roundup of best cheap gaming monitors is the LG UltraGear 27GS93QE, a 27-inch 1440p 240Hz QD-OLED display that lists for $499 after a $400 cut from $899.

IPS at 320Hz keeps motion tight for competitive gaming, which is where the extra hertz show up. QD-OLED at 240Hz holds HDR and contrast, with per-pixel dimming and a wider color volume. For single-player AAA, content work, and HDR movie playback, the QD-OLED tier is the right pick; for esports titles and racing sims, the IPS tier wins.

For a single monitor, the choice is the XG27ACMS at $249 or the LG UltraGear 27GS93QE at $499. The XG27ACMS does not match the QD-OLED option on HDR or contrast.

It does undercut the OLED on refresh rate, response time, and the kinds of fast games where the extra hertz show up. The price gap holds after Prime Day cuts on both panels. The Alienware AW3225DM, a 32-inch 1440p 180Hz curved IPS monitor at $249, sits in the same price tier as the XG27ACMS on a different size and refresh class.

Trade-offs the $249 Doesn’t Cover

Three caveats sit underneath the spec sheet. The DisplayHDR 400 certification is the entry-level tier; HDR scenes hit a 500-nit peak, which is bright enough to make HDR content visible, but not bright enough to deliver the kind of specular highlights Mini-LED and QD-OLED panels produce. The USB-C port supports 15W of power delivery alongside DisplayPort Alt Mode, enough to keep a thin-and-light laptop charged slowly while the monitor handles the video signal, but not enough to power a full USB-C dock. The 320Hz refresh ceiling kicks in only with the OC mode above the 144Hz native ceiling, so buyers who leave the monitor at default 144Hz will not see the rated speed.

The XG27ACMS at $249 keeps the 320Hz QHD price floor low, but skips the higher-wattage USB-C, the brighter HDR tiers, and the per-pixel dimming that QD-OLED panels deliver. For buyers who need any of those, the QD-OLED tier at $499 (LG UltraGear 27GS93QE) and the Mini-LED options above $500 are the step up. For buyers who want 320Hz QHD at the lowest price the category has seen, the XG27ACMS is the deal.

• HDR ceiling: 500 nits peak is the DisplayHDR 400 floor, short of the highlights Mini-LED and QD-OLED panels hit.
• USB-C power: 15W PD charges a phone or thin laptop slowly, but will not power a full USB-C dock.
• Refresh ceiling: 320Hz only with OC above the 144Hz native ceiling; VRR and ELMB Sync both work in the OC range.

Frequently Asked Questions

Is the ASUS ROG Strix XG27ACMS worth buying at $249?

The $249 price is the lowest on camelcamelcamel’s history for the XG27ACMS, and the spec sheet at that price (320Hz OC, 0.3ms response, ELMB Sync, G-SYNC Compatible) lines up with what 240Hz QHD monitors cost a year ago. For buyers running competitive shooters at high frame rates, the trade-offs come down to HDR brightness and USB-C power, not panel speed.

How does the XG27ACMS compare to a QD-OLED 1440p monitor?

The XG27ACMS at $249 lists well below the LG UltraGear 27GS93QE, a 27-inch 1440p 240Hz QD-OLED monitor at $499. The IPS panel wins on refresh rate (320Hz OC vs 240Hz) and on price; the QD-OLED wins on HDR, contrast, and pixel response. For HDR-first use, the QD-OLED is the better panel; for fast-twitch competitive play, the IPS at $249 is the better value.

What is the difference between 320Hz and 240Hz for gaming?

The step from 240Hz to 320Hz matters most in fast esports titles where every additional frame of motion clarity is visible. The XG27ACMS runs at 320Hz only when overclocked above its 144Hz native ceiling, with the 1ms G2G response time holding the picture tight across the range. For most non-competitive games, the gap from 240Hz to 320Hz is harder to see than the 60Hz-to-144Hz jump.

Will the price drop further during Prime Day 2026?

The current $249 is the lowest price the monitor has ever listed for, per camelcamelcamel’s history. Prime Day 2026 runs June 23 to 26, and deals sometimes go lower during the main event, but the panel is unlikely to drop much further without the kind of inventory clearance that the listing does not yet suggest.

Does the XG27ACMS have speakers, VESA mount, and warranty?

The XG27ACMS has no built-in speakers, and the only audio output is the 3.5mm headphone jack. It is VESA mount compatible, the included stand supports tilt, height, swivel, and pivot, and ASUS ships the panel with a 3-year warranty. The headphone jack is a small but real convenience for buyers running external speakers or a headset through the monitor.