Author Topic: Best 144-170hz 1440p Monitors  (Read 45183 times)


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« on: August 29, 2018, 07:25:39 pm »

Acer XB270HU

Discontinued original 27" 2560x1440 144hz AUO AHVA panel with Nvidia G-Sync.

Spoiler (hover to show)

Acer XF270HUA bmiidprzx

List of cards which support Free-Sync.

Review By Lim's Cave
Review by PRAD
Review by Trusted Reviews

Accurate matte 2560x1440 144hz AUO AHVA (marketed as IPS) panel with AMD Free-Sync (40-144hz range supported by the Displayport and HDMI 2.0) with a fully adjustable stand, Displayport, Dul-Link DVI, HDMI 1.4, HDMI 2.0 (144hz), 4x USB 3.0 and 3.5mm Audio In and Out.

Acer XG270HU

Matte 2560x1440 144hz TN panel with AMD Free-Sync

Spoiler (hover to show)

Acer XB271HU

Review by Alexander Gryzhin (=DEAD=)
Measurements and Review by Belgium Hardware
Review by NCX (archived version)
Review by PC Mag
Review by Rtings
Review by Sweclockers
Review by Trusted Reviews

It's pretty much the same as the PG279Q.  The Acer XB271HU uses a 27" 2560x1440 resolution 8 Bit AUO AHVA panel, a nearly grain free matte coating, has good color presets aside from a preset green tint, a frame-less casing with an inner black bezel which decreases the perceived black depth, fast pixel response times and a 144hz refresh rate.  G-Sync (Nvivida GPU required) works from 30-165hz (144hz is the default maximum refresh rate but it can be overclocked to 165hz), eliminates tearing and lag, but Lightboost is limited to 120z.  It also has an HDMI input which allows it to work with external devices like consoles.

Acer Nitro VG270UP

VG270UP AHVA Panel Review by =DEAD=
VG270UP Innolux IPS Panel Review by =DEAD=
Review by Les Numeriques (unsure if AUO AHVA or Innolux IPS panel)

The Acer uses a fake bezel/frame-less (it has an inner black bezel which reduces the perceived black depth versus a grey bezel) 144hz AUO M270DAN02 AHVA panel (advertised as IPS) with Displayport (Free-Sync + 40-144hz range), HDMI 1.4, HDMI 2.0 (Free-Sync + 40-144hz range) and 3.5mm Audio Out.  It supports AMD Free-Sync (40-144hz range), 120hz back-light strobing (named VRB=Visual Boost Response,

The reviews by =DEAD= review contains photos of the Test UFO Ghosting test which proves that the AUO AHVA panel is faster (OD Normal) out of the box, has a useful Extreme overdrive setting with only a bit of overshoot ghosting, which is noted in this section of the review.

Test UFO Ghosting Test Overdrive Comparisons: AUO AHVA versus Innolux IPS

The AUO AHVA panel has significantly more accurate preset color accuracy, especially the gamma since  the Innolux IPS has low gamma (scroll down to see this chart) while the AUO AHVA panel has nearly perfect 2.2 preset gamma and 93% DCI-P3 color space coverage for games with HDR support. The Innolux panel does use a semi-wide gamut panel which over-saturates the colors of SDR (HDTV/REC 709 & sRGB) content out of the box, but does have an sRGB mode to prevent the 34% over-saturation, as well as offer proper 2.2-ish gamma; AHVA vs IPS sRGB Color Space comparisons.

The last significant difference is the AUO AHVA panel suffers from white glow when viewing black while the Innolux IPS suffers from brownish-red glow; compare multiple photos: AUO AHVA vs Innolux IPS.


The AUO AHVA panel is better since it has superior preset color accuracy or image quality for the majority of consumer content which use SDR color spaces (HDTV/REC 709 & sRGB), and has faster pixel response times and less overshoot ghosting than the Innolux panel. The Gigabyte AORUS AD27QD has similar overdrive, but is significantly more accurate than the Innolux VG270UP, and has a height adjustable stand which makes it worth the extra money since height adjustable stands cost at least 50$ US, and the 150$ US X-rite Colormunki is the cheapest accurate colorimeter.


Review by =DEAD=
Review by PRAD (minor 720p scaling issue)

Fully adjustable matte 144hz 2560x1440 10 bit (8 bit +FRC) Innolux IPS panel with AMD Free-Sync (48-144hz), Disaplayport (144hz), HDMI 1.4 (70hz), HDMI 2.0 (144hz), 4x USB 3.0 and 3.5mm Audio Out.  The Innolux IPS panel is wide gamut and supports 95% of the DCI-P3 (HDR) color space natively, so the monitor must be set to the sRGB mode to prevent the over-saturation of SDR media (HDTV/REC 709 and sRGB) color.  The XV272 is very accurate out of the box, as well as when set to the sRGB mode which should be used to prevent color over-saturation when not viewing HDR content.  The HDR modes limited dynamic range causes severe black crush or the loss of detail in dark content in games like Resident Evil 7 tested by PRAD.  The XV272UPBMIIPRZX has the same overdrive as the Innolux IPS panel in the VG270UP which means that it is slower than the 144-165hz 1440p AUO AHVA panels.

Acer VG271UP

Added the Review by Rtings to my Best Reviewed Flicker Free 144-165hz 1440p Monitors and Best Reviewed Flicker Free 27" 1440p AHVA/IPS/PLS buying guides.

Matte 144hz 2560x1440 10 bit (8 bit +FRC; 10 bit color only supported at 120hz) Innolux IPS panel with AMD Free-Sync (48-144hz), Disaplayport (144hz), 2x HDMI 2.0 (144hz), 4x USB 3.0 and 3.5mm Audio Out.  The Innolux IPS panel can decode HDR, but lacks all features a panel needs to truly display HDR content such as a true wide gamut panel.  The VG271UP is fairly accurate, but not as accurate as the wide gamut panel in the Acer XV272.  The VG271UP has negligible input lag and fast pixel response times without overshoot ghosting, but the Innolux IPS panel in the VG/XV Acer's and Gigabyte AD27QD are not as fast as the 144hz 1440p AHVA panels in competitors like the Acer XF270HU.


Review by PC Lab PL

Fully adjustable matte 144hz 2560x1440 TN panel with AMD Free-Sync (48-144hz), Disaplayport (144hz), 2x HDMI 2.0, 4x USB 3.0 and 3.5mm Audio Out.  The XF272U has an 876:1 contrast ratio, slightly too low but still very accurate preset gamma, an accurate (RGB levels) wide gamut TN panel with 91.5% DCI-P3 (HDR) color space coverage.  The Acer over-saturates SDR (HDTV/REC 709 & sRGB) color by over 30%.  The XF272U has negligible input lag (measured with an oscilloscope) and very fast pixel response times with minimal overshoot when the default Normal OD (overdrive) setting is used.
« Last Edit: May 24, 2020, 01:50:39 pm by NCX »