27" AOpen 27ML2
vs
27" HP 27x

The HP 27x has the Display Port and this is essential for NVIDIA cards to work with AMD FreeSync. The brightness of HP 27x is better than AOpen 27ML2 by 18 %. HP 27x has a higher contrast ratio of 3000 : 1. For graphics color quality, the HP 27x has a better color depth of 8 -bit, resulting in smoother gradients and more accurate colors. For the extremely fast frame rates, the HP 27x has better maximum refresh rate of 144 Hz that allows smoother gameplay. To compensate for graphically demanding games, the AOpen 27ML2 has better low end adaptive refresh rate of 75 Hz that can adapt to more lower frame rate drops. For the average response rate, the AOpen 27ML2 scores 7.5 ms, which is faster than the HP 27x . AOpen 27ML2 has lower total input lag than HP 27x . The AOpen 27ML2 is newer than HP 27x .

27" AOpen 27ML2

The monitor panel has good viewing angles and offers better contrast and colors than TN panels. For the average response rate, the AOpen 27ML2 scores 7.5 ms, which ensures effective synchronization with the high refresh rate. The AOpen 27ML2 is a relatively new monitor. With the AMD FreeSync support, this monitor is compatible with both AMD and NVIDIA graphics cards. The AOpen 27ML2 has no Display Port and which is essential for NVIDIA cards to work with AMD FreeSync. For graphics color quality, the AOpen 27ML2 has an average color depth of 6 -bit, resulting in dithered gradients and more slightly less accurate colors. The monitor has an unimpressive contrast ratio of 1000 : 1. Graphically demanding games may cause frame drops outside the adative refresh rate of 75 Hz. AOpen 27ML2 has a total input lag of 18 ms, which is bad among the competition. The brightness of AOpen 27ML2 is lower than other monitors. The AOpen 27ML2 has a maximum refresh rate of 75 Hz and this may be too low for the extremely fast frame rates in competitive games. The minimum response rate of AOpen 27ML2 is 5 ms, which is can cause ghosting effects. In terms of pixel density, the AOpen 27ML2 has an low density of 81 pixels-per-inch, resulting in pixelated text and picture quality. The monitor does not have a VESA mount.

27" HP 27x

For the extremely fast frame rates, the HP 27x has a maximum refresh rate of 144 Hz that allows smoother gameplay. With the AMD FreeSync support, this monitor is compatible with both AMD and NVIDIA graphics cards. The HP 27x is a relatively new monitor. The HP 27x has the Display Port and this is essential for NVIDIA cards to work with AMD FreeSync. HP 27x has an excellent contrast ratio of 3000 : 1. For graphics color quality, the HP 27x has an excellent color depth of 8 -bit, resulting in smoother gradients and more accurate colors. The monitor panel has good viewing angles and offers better contrast and colors than TN panels. For the average response rate, the HP 27x scores 14 ms, which can cause motion blurring due to ineffective synchronization with the high refresh rate. The brightness of HP 27x is lower than other monitors. The minimum response rate of HP 27x is 5 ms, which is can cause ghosting effects. HP 27x has a total input lag of 24.5 ms, which is bad among the competition. The monitor does not have a VESA mount. Graphically demanding games may cause frame drops outside the adative refresh rate of 144 Hz. In terms of pixel density, the HP 27x has an low density of 81 pixels-per-inch, resulting in pixelated text and picture quality.

3D

	27" AOpen 27ML2	27" HP 27x
3D	No	No

Audio

	27" AOpen 27ML2	27" HP 27x

Brand, series, model

	27" AOpen 27ML2	27" HP 27x
Brand	AOpen	HP
Model	27ML2	27x
Model alias	27ML2bmix27ML2 bmix	1AT01AA

Camera

	27" AOpen 27ML2	27" HP 27x
Camera	No	No

Certificates, standards and licenses

	27" AOpen 27ML2	27" HP 27x
Certificates, standards and licenses	ENERGY STARErP	BSMICBCCCCECECPCEL Grade 1CSAEACEEIENERGY STAReStandbyFCC Class BIS 1121ISCKCCMEPSNOMPSBRCMS markSASOTÜV/SUL/CSAVCCI-BWHQL (Windows 10; Windows 8; Windows 7)

Connectivity

	27" AOpen 27ML2	27" HP 27x
Connectivity	1 x HDMI 1.4, 1 x D-sub, 1 x 3.5 mm Audio In, 1 x 3.5 mm Audio Out	1 x HDMI 1.4, 1 x DisplayPort 1.2, 1 x 3.5 mm Audio Out

Dimensions, weight and color

	27" AOpen 27ML2	27" HP 27x
Colors	Black	Black
Depth with stand	212 mm (millimeters) 21.2 cm (centimeters) 8.3465 in (inches) 0.6955 ft (feet)	179.2 mm (millimeters) 17.92 cm (centimeters) 7.0551 in (inches) 0.5879 ft (feet)
Height with stand	454 mm (millimeters) 45.4 cm (centimeters) 17.874 in (inches) 1.4895 ft (feet)	438.5 mm (millimeters) 43.85 cm (centimeters) 17.2638 in (inches) 1.4386 ft (feet)
Weight with stand	3.2 kg (kilograms) 7.05 lbs (pounds)	5.2 kg (kilograms) 11.46 lbs (pounds)
Width with stand	621 mm (millimeters) 62.1 cm (centimeters) 24.4488 in (inches) 2.0374 ft (feet)	613.3 mm (millimeters) 61.33 cm (centimeters) 24.1457 in (inches) 2.0121 ft (feet)

Display

	27" AOpen 27ML2	27" HP 27x
Aspect ratio	1.778:116:9	1.778:116:9
Backlight	W-LED	W-LED
Brightness	250 cd/m² (candela per square meter)	300 cd/m² (candela per square meter)
Coating	Anti-glare/Matte (3H)	Anti-glare/Matte
Colors	16777216 colors 24 bits	16777216 colors 24 bits
Diagonal	685.8 mm (millimeters) 68.58 cm (centimeters) 27 in (inches) 2.25 ft (feet)	685.8 mm (millimeters) 68.58 cm (centimeters) 27 in (inches) 2.25 ft (feet)
Dynamic contrast	100000000 : 1	10000000 : 1
Height	336.312 mm (millimeters) 33.6312 cm (centimeters) 13.2406 in (inches) 1.1034 ft (feet)	336.15 mm (millimeters) 33.615 cm (centimeters) 13.2343 in (inches) 1.1029 ft (feet)
Horizontal viewing angle	178 ° (degrees)	178 ° (degrees)
Minimum response time	1 ms (milliseconds) 0.0010 s (seconds)	5 ms (milliseconds) 0.0050 s (seconds)
Panel bit depth	8 bits (6 bits + FRC)	8 bits
Panel type	IPS	VA
Pixel density	81 ppi (pixels per inch) 32 ppcm (pixels per centimeter)	81 ppi (pixels per inch) 32 ppcm (pixels per centimeter)
Pixel pitch	0.311 mm (millimeters) 0.0311 cm (centimeters) 0.0123 in (inches) 0.001 ft (feet)	0.311 mm (millimeters) 0.0311 cm (centimeters) 0.0123 in (inches) 0.001 ft (feet)
Resolution	1920 x 1080 pixels Full HD / 1080p	1920 x 1080 pixels Full HD / 1080p
Size class	27 in (inches)	27 in (inches)
Static contrast	1000 : 1	3000 : 1
Vertical viewing angle	178 ° (degrees)	178 ° (degrees)
Width	597.888 mm (millimeters) 59.7888 cm (centimeters) 23.5389 in (inches) 1.9616 ft (feet)	597.6 mm (millimeters) 59.76 cm (centimeters) 23.5276 in (inches) 1.9606 ft (feet)

Ergonomics

	27" AOpen 27ML2	27" HP 27x
Backward tilt	15 ° (degrees)	25 ° (degrees)
Forward tilt	5 ° (degrees)	5 ° (degrees)
Forward/backward tilt	Yes	Yes
Height adjustment	No	No
Landscape/portrait pivot	No	No
Left/right swivel	No	No
Removable stand	Yes	Yes
VESA mount	No	No

Features

	27" AOpen 27ML2	27" HP 27x
Features	AMD FreeSync technology, Blue Light FilterFlicker-free technology, HDCP (High-bandwidth Digital Content Protection)	AMD FreeSync technology, HDCP (High-bandwidth Digital Content Protection)

Frequencies

	27" AOpen 27ML2	27" HP 27x
Vertical frequency (digital)	75 Hz (hertz)	144 Hz (hertz)

Power supply and consumption

	27" AOpen 27ML2	27" HP 27x
110V	100 V - 120 V (volts)	100 V - 120 V (volts)
220V	220 V - 240 V (volts)	220 V - 240 V (volts)
Alternating current frequency	50 Hz - 60 Hz (hertz)	50 Hz - 60 Hz (hertz)
Power consumption (average)	30 W (watts)	39 W (watts)
Power consumption (maximum)	40 W (watts)	47 W (watts)
Power consumption (off)	0.4 W (watts)	0.5 W (watts)
Power consumption (sleep)	0.45 W (watts)	0.5 W (watts)