MONITORS · YOUR NEXT FACE-OFF

ASUS ROG Strix XG259CM vs ASUS ROG Strix XG256Q

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

ASUS ROG Strix XG259CM

Global manufacturer specification · ROG Strix XG259CM

Full product profile Official image

Exact model & source notes

ROG Strix XG259CM monitor, identified in the ASUS Global catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.

Specifications checked 17 Oct 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

WHAT DIFFERS

240 HzMaximum refresh rate180 Hz

The first of 4 verified differences, in the order listed below. Not a rating.

See the 4 verified differences

THE CONTENDER

ASUS ROG Strix XG256Q

Global manufacturer specification · ROG Strix XG256Q

Full product profile Official image

Exact model & source notes

ROG Strix XG256Q monitor, identified in the ASUS Global catalogue. Specifications below retain the manufacturer’s configuration and interface conditions.

Specifications checked 17 Oct 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

XG259CM UK & US retailers

UK & US price history: no verified listing yet

XG256Q UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison

Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.

SPECIFICATIONS SIDE BY SIDE5 topics

SELECTED TOPIC

01 / 05

Max refresh

Maximum manufacturer-listed refresh rate, not measured motion clarity. The port-specific limits below matter; HDMI and DisplayPort can support different modes.

ASUS ROG Strix XG259CM240 Hz

Manufacturer specification · Manufacturer-listed maximum; input-specific signal-frequency restrictions, overclocking and source/cable requirements remain as shown in the specifications. Digital Signal Frequency : HDMI: 30~255KHz (H) / 48~240Hz (V) USB-C, DisplayPort: 255~255 KHz (H) / 48~240 Hz (V)

Source 1

ASUS ROG Strix XG256Q180 Hz

Manufacturer specification · Manufacturer-listed maximum; input-specific signal-frequency restrictions, overclocking and source/cable requirements remain as shown in the specifications. Digital Signal Frequency : HDMI:33KHz to 189KHz(H)/48HZ to 165Hz(V) DP: 33KHz to 206KHz(H)/48Hz to 180Hz(V)(OC)

Source 1

Explore the full specifications

Match the monitor to the connection. Refresh limits depend on the input, cable and source device. Confirm the exact regional ports, stand adjustment and mount. Manufacturer response-time methods such as MPRT and GtG are different; neither the image nor these figures establish an independent motion or colour-quality test.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

4 verified differences, most decision-relevant first. All are also drawn in Visual facts above. Missing information stays separate.

Maximum refresh rate

In Visual facts

ASUS ROG Strix XG259CM240 Hz

ASUS ROG Strix XG256Q180 Hz

Sources

ASUS ROG Strix XG259CM

ASUS ROG Strix XG259CM — official Global technical specifications

ASUS ROG Strix XG256Q

Manufacturer specification · Manufacturer-listed maximum; input-specific signal-frequency restrictions, overclocking and source/cable requirements remain as shown in the specifications. Digital Signal Frequency : HDMI:33KHz to 189KHz(H)/48HZ to 165Hz(V) DP: 33KHz to 206KHz(H)/48Hz to 180Hz(V)(OC)

ASUS ROG Strix XG256Q — official Global technical specifications

Check the exact configuration and source conditions for your use.

Inputs and versions

In Visual facts

ASUS ROG Strix XG259CMDisplayPort 1.2 x 1 HDMI (v2.0)x 1 USB-Cx 1 (DP Alt Mode) Earphone jack: Yes USB Hub: 2x USB 3.2 Gen 1 Type-A USB-C Power Delivery: 15W

ASUS ROG Strix XG256QDisplayPort 1.2 x 1 HDMI (v2.0)x 2 Earphone jack: Yes

Sources

ASUS ROG Strix XG259CM

Manufacturer specification

ASUS ROG Strix XG259CM — official Global technical specifications

ASUS ROG Strix XG256Q

Manufacturer specification

ASUS ROG Strix XG256Q — official Global technical specifications

Check the exact configuration and source conditions for your use.

Input-specific signal modes

In Visual facts

ASUS ROG Strix XG259CMDigital Signal Frequency: HDMI: 30~255KHz (H) / 48~240Hz (V) USB-C, DisplayPort: 255~255 KHz (H) / 48~240 Hz (V)

ASUS ROG Strix XG256QDigital Signal Frequency: HDMI:33KHz to 189KHz(H)/48HZ to 165Hz(V) DP: 33KHz to 206KHz(H)/48Hz to 180Hz(V)(OC)

Sources

ASUS ROG Strix XG259CM

Manufacturer specification

ASUS ROG Strix XG259CM — official Global technical specifications

ASUS ROG Strix XG256Q

Manufacturer specification

ASUS ROG Strix XG256Q — official Global technical specifications

Check the exact configuration and source conditions for your use.

Dimensions with supplied configuration

In Visual facts

ASUS ROG Strix XG259CMPhys. Dimension with stand (W x H x D): 55.80 x 49.10 x 23.40 cm (21.97" x 19.33" x 9.21")

ASUS ROG Strix XG256QPhys. Dimension with stand (W x H x D): 55.80 x 49.10 x 23.50 cm (21.97" x 19.33" x 9.25")

Sources

ASUS ROG Strix XG259CM

Manufacturer specification · Manufacturer estimated dimensions; original ordering, units and regional qualifications retained. See source for stand configuration.

ASUS ROG Strix XG259CM — official Global technical specifications

ASUS ROG Strix XG256Q

Manufacturer specification · Manufacturer estimated dimensions; original ordering, units and regional qualifications retained. See source for stand configuration.

ASUS ROG Strix XG256Q — official Global technical specifications

A size or weight trade-off; it does not establish the better product.

11 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

ASUS ROG Strix XG259CM

What it brings

Published monitor interfaces and configuration are available from the exact-model ASUS specification source.
Manufacturer source

What to check

Compatibility and maximum operating modes depend on the source’s stated hardware, firmware and connection requirements; manufacturer figures are not independent measurements.
Manufacturer source

ASUS ROG Strix XG256Q

What it brings

Published monitor interfaces and configuration are available from the exact-model ASUS specification source.
Manufacturer source

What to check

Compatibility and maximum operating modes depend on the source’s stated hardware, firmware and connection requirements; manufacturer figures are not independent measurements.
Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

15 of 15 specifications Sources in each row

Source-backed specifications for ASUS ROG Strix XG259CM and ASUS ROG Strix XG256Q
Specification	ASUS ROG Strix XG259CM	ASUS ROG Strix XG256Q

Screen diagonal Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	24.5 in	24.5 in
Native resolution Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	1920x1080	1920x1080
Panel technology Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	Fast IPS	Fast IPS
Aspect ratio Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	16:9	16:9
Panel coating Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	Anti-Glare	Anti-Glare
Contrast-ratio claim Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	1000:1	1000:1
Display colours Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	16.7M	16.7M
Declared typical brightness Sources ASUS ROG Strix XG259CM Manufacturer specification · Manufacturer typical claim; not measured luminance or HDR peak. Original: 400cd/㎡ ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification · Manufacturer typical claim; not measured luminance or HDR peak. Original: 400cd/㎡ ASUS ROG Strix XG256Q — official Global technical specifications	400 cd/m²	400 cd/m²

Maximum refresh rateDifferent Sources ASUS ROG Strix XG259CM Manufacturer specification · Manufacturer-listed maximum; input-specific signal-frequency restrictions, overclocking and source/cable requirements remain as shown in the specifications. Digital Signal Frequency : HDMI: 30~255KHz (H) / 48~240Hz (V) USB-C, DisplayPort: 255~255 KHz (H) / 48~240 Hz (V) ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification · Manufacturer-listed maximum; input-specific signal-frequency restrictions, overclocking and source/cable requirements remain as shown in the specifications. Digital Signal Frequency : HDMI:33KHz to 189KHz(H)/48HZ to 165Hz(V) DP: 33KHz to 206KHz(H)/48Hz to 180Hz(V)(OC) ASUS ROG Strix XG256Q — official Global technical specifications	240 Hz	180 Hz
Response-time claim Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	1ms(GTG)	1ms(GTG)
Input-specific signal modesDifferent Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	Digital Signal Frequency: HDMI: 30~255KHz (H) / 48~240Hz (V) USB-C, DisplayPort: 255~255 KHz (H) / 48~240 Hz (V)	Digital Signal Frequency: HDMI:33KHz to 189KHz(H)/48HZ to 165Hz(V) DP: 33KHz to 206KHz(H)/48Hz to 180Hz(V)(OC)

Inputs and versionsDifferent Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	DisplayPort 1.2 x 1 HDMI (v2.0)x 1 USB-Cx 1 (DP Alt Mode) Earphone jack: Yes USB Hub: 2x USB 3.2 Gen 1 Type-A USB-C Power Delivery: 15W	DisplayPort 1.2 x 1 HDMI (v2.0)x 2 Earphone jack: Yes
Audio and speaker specification Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	Speaker:No	Speaker:No

Dimensions with supplied configurationDifferent Sources ASUS ROG Strix XG259CM Manufacturer specification · Manufacturer estimated dimensions; original ordering, units and regional qualifications retained. See source for stand configuration. ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification · Manufacturer estimated dimensions; original ordering, units and regional qualifications retained. See source for stand configuration. ASUS ROG Strix XG256Q — official Global technical specifications	Phys. Dimension with stand (W x H x D): 55.80 x 49.10 x 23.40 cm (21.97" x 19.33" x 9.21")	Phys. Dimension with stand (W x H x D): 55.80 x 49.10 x 23.50 cm (21.97" x 19.33" x 9.25")
Stand and mounting details Sources ASUS ROG Strix XG259CM Manufacturer specification ASUS ROG Strix XG259CM — official Global technical specifications ASUS ROG Strix XG256Q Manufacturer specification ASUS ROG Strix XG256Q — official Global technical specifications	1/4" Tripod Socket: Yes Tilt: Yes (+20° ~ -5°) Swivel: Yes (+25° ~ -25°) Pivot: Yes (0° ~ 90° Clockwise) Height Adjustment: 0~110mm VESA Wall Mounting: 100x100mm Kensington Lock: Yes	1/4" Tripod Socket: Yes Tilt: Yes (+20° ~ -5°) Swivel: Yes (+25° ~ -25°) Pivot: Yes (0° ~ 90° Clockwise) Height Adjustment: 0~110mm VESA Wall Mounting: 100x100mm Kensington Lock: Yes

First product manufacturer source Second product manufacturer source

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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.