Acer
Acer R271
It's fairly accurate but has low (87% before and 91% after calibration vs 95-99%) sRGB color space coverage for a 1080p IPS/PLS panel made after 2015. Keep the OD (overdrive) setting set to off to prevent obvious overshoot ghosting.
Review by Alexander Gryzhin (=DEAD=)
Acer B277bmiprzx
Review by PRADMatte with Adaptive Sync (AMD Free-Sync), 75hz, 98% sRGB color space coverage, a height adjustable stand and USB ports, but low preset gamma which can be improved by selecting the 2.4 gamma setting.
Acer RG270
Revivew by Tom's Hardware Matte 1080p IPS with 48-75hz AMD Free-Sync, Displayport, HDMI 1.4, 3.5mm Audio Out and VGA and nearly perfect preset color accuracy.
Acer VG271Pb
Review by =DEAD=Matte 1920x1080 144hz AUO AHVA panel (marketed as IPS) with AMD Free-Sync (48-144hz range). Displayport, VRB (120hz back-light strobing), 2x HDMI 2.0, and 3.5mm Audio Out and a fake border-less or frame-less casing with
a perceived black depth decreasing inner black bezel. The Acer is fairly accurate, but can be improved by selecting the sRGB mode which increases the accuracy as well as reduces the too high preset brightness.
Acer Nitro XV273 X
Review by TFT CentralMatte 1920x1080 240hz AUO AHVA panel (marketed as IPS) with AMD Free-Sync (48-240hz range), Displayport, VRB (120, 144 and 240hz back-light strobing), 2x HDMI 2.0, 3.5mm Audio Out and 4x USB 3.0. The Acer XV273 has a native 1170:1 contrast ratio,
can fully cover the sRGB color space (with 9% over-saturation), and is quite accurate. The XV273
has negligible input lag at all refresh rates, and fast pixel response times with minimal overshoot at both 60hz (OD Off) and
240hz (OD Normal) which makes it great for both 60hz console and 240hz PC gaming.
AHVA
Acer XV273 X versus
Acer XF252Q TN panel 240hz oscilloscope measurements by TFT Central.
Acer Predator XB273GX
Review by =DEAD= (no input lag measurements)
Matte 1920x1080 240hz AUO AHVA panel (
M270HAN03. 0 marketed as IPS) with AMD Free-Sync (48-240hz range), Displayport, VRB (120, 144 and 240hz back-light strobing), 2x HDMI 2.0, 3.5mm Audio Out and 4x USB 3.0. The XB273X has an 1150:1+ contrast ratio (100-530cdm/2 brightness range),
can almost fully cover the SDR (HDTV/REC 709 & sRGB) color spaces. The XB273GX is very accurate, and also has an SRGB mode which gets rid of the preset 10% over-saturation of greens and yellows,
but under-saturates color slightly versus the sRGB standard, and locks the brightness controls at a very high 215cdm/2. The XB273GX's overdrive is preset to the Normal setting which offers very fast (for a non-TN panel) pixel response times with minimal to no overshoot, and is competitive with other brands top performers.