Display Enlightment by NCX

General Category => Best Reviewed Flicker Free Monitor Buying Guides => Topic started by: NCX on July 02, 2018, 06:43:57 pm

Title: Best 240-280hz Monitors
Post by: NCX on July 02, 2018, 06:43:57 pm
Last Update=February 16th 2020

2020 Reviews Added Here (http://bestmonitorsbyncx.createaforum.com/monitors-for-sale-support-for-ncx/site-update-log/)

2018-2019 Reviews Added Here (http://bestmonitorsbyncx.createaforum.com/monitors-for-sale-support-for-ncx/site-update-log/)

Best Monitor Review Sites: Monitor Review Resource Center (http://bestmonitorsbyncx.createaforum.com/monitor-advice-by-ncx/best-monitor-review-sites/msg61/#msg61)


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Always purchase from retailers with hassle free return and exchange policies.  Read retailers return and exchange policies before buying.[/center]

My recommendations are based off of testing more than 60 monitors and reading in-depth reviews from over fifteen reviewers across the realm.

Best Monitor Review Sites: Monitor Review Resource Center (http://bestmonitorsbyncx.createaforum.com/monitor-advice-by-ncx/best-monitor-review-sites/msg61/#msg61)

Many monitors not found in this thread likely perform well, but it makes more sense to buy well reviewed monitors, and I like having sources to refer to, even though I do not always agree with them.

If a monitor is not mentioned it is because it has not been reviewed properly, been reviewed at all or is mediocre.  All monitors suffer from regular quality control issues: back-light bleeding and pixel issues (dead and stuck pixels).

Recommendations are PWM or Flicker Free:

I do not recommend monitors which use low LED PWM Dimming frequencies since they ruin motion clarity (https://flic.kr/p/qSbVjo) and cause some people to suffer from health issues like head aches and eyestrain.  LED PWM Dimming Side Effects (http://www.tftcentral.co.uk/articles/pulse_width_modulation.htm#side_effects).
Title: Re: Best Reviewed Flicker Free 240hz Monitors
Post by: NCX on July 02, 2018, 07:10:43 pm
Table Of Content


More 144-240hz Monitor Buying Guides (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/msg170/#msg170)
Abnormalities & Quality Control Warnings (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/msg171/#msg171)
Best 240hz with AMD Free-Sync and/or Back-Light Strobing (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/msg172/#msg172)
Best 240hz with Nvidia G-Sync (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/msg173/#msg173)
Correct Display Height=Reduced AHVA/IPS/PLS Glow (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/msg174/#msg174)
Improve Perceived Contrast/Black Depth & Reduce Glare With Bias Lighting (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=175)
Acer (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=176)
Alienware (Dell) (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=177)
AOC (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=178)
Asus (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=179)
BenQ (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=180)
Crossover (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=181)
Eizo (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=182)
HP (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=183)
iiyama (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=184)
Lenovo (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=185)
LG (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=186)
MSI (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/?message=187)
Samsung (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitor/?message=188)
ViewSonic (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/msg831/#msg831)
Title: More 144-240hz Monitor Buying Guides
Post by: NCX on July 02, 2018, 07:11:49 pm
More 144-240hz Monitor Buying Guides

Best Reviewed Flicker Free 1080p 144hz Monitors (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-144hz-1080p-monitors/)
Best Reviewed Flicker Free 1440p 144-165hz Monitors (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-144hz-monitors/msg330/#msg330)
Best Reviewed Flicker 240hz TN Panels (http://bestmonitorsbyncx.createaforum.com/general-discussion/best-reviewed-flicker-free-240hz-monitors/)
Title: Abnormalities & Quality Control Warnings
Post by: NCX on July 02, 2018, 07:12:42 pm
Abnormalities & Quality Control Warnings

Warning: The 27" 1440p TN panels use very grainy matte coatings which reduces sharpness and clarity, and make content with white and light colours look obviously sparkly/grainy. They, along with the 24" models suffer from pixel inversion artifacts and suffer from poor quality control (especially the PG278Q).

Warning: The 27" 1440p AHVA panels used by the 1440p AHVA G-Sync monitors tend to suffer from poor quality control including back-light bleed and brown or yellow stains, and may come with dust or dirt stuck under the matte coating which is non-remove-able.

Warning: 144-240hz TN panels tend to suffer from pixel inversion artifacts which are shimmering mesh patterns which appears during motion on certain colors.

Warning: The color accuracy and contrast of the 240hz TN panels can vary significantly between the same monitors, and most are limited to 89-93% sRGB color space coverage which prevents them from being as accurate and vibrant as the best 144hz TN panels.
Title: Best 240hz with AMD Free-Sync and/or Back-light strobing
Post by: NCX on July 02, 2018, 07:13:26 pm
Best 240hz with AMD Free-Sync and/or Back-light strobing

#1  Acer Nitro XV273 X (48-240hz AMD Free-Sync & back-light strobing
#2 Acer XF252Q (48-240hz AMD Free-Sync & back-light strobing) TN
#2 HP X27 (2560x1440 ?-240hz AMD Free-Sync) 8 bit TN
#2 Samsung C27RG50FQ (?-240hz AMD Free-Sync & back-light strobing)
#3 Gigabyte Aorus KD25F (40-240hz AMD Free-Sync & Aim Stabilizer/back-light strobing) TN
#3 LG 27GK750F (48-240hz AMD Free-Sync & back-light strobing) TN
#4 BenQ XL2546 (DyAc=back-light strobing) TN
#5 HP OMEN X 25f (20-240hz AMD Free-Sync) TN
#6 Viewsonic XG2530 (30-240hz AMD Free-Sync) TN
#7 AOC AGON AG251FZ (48-240hz AMD Free-Sync) TN


The Acer Nitro XV273 X uses a 240hz AHVA panel (marketed as IPS) with more even and vibrant colors, and less restrictive or wider viewing angles than both TN  and VA panels, is significantly faster than VA panels, and is slower than 240hz TN panels (https://www.tftcentral.co.uk/reviews/acer_nitro_xv273x.htm#gaming_comparisons), but still fast enough for most.

AHVA Acer XV273 X (https://www.tftcentral.co.uk/reviews/acer_nitro_xv273x.htm#detailed_response) versus Acer XF252Q (https://www.tftcentral.co.uk/reviews/acer_nitro_xf252q.htm#detailed_response) TN panel 240hz oscilloscope measurements by TFT Central.

The HP Omen X 27 uses a 2560x1440, matte 8 bit TN panel which is very accurate and supports local dimming and partial HDR color support.

The Samsung C27RG50FQ used a curved (1500R) VA panel with more even and vibrant colors, and less restrictive or wider viewing angles than TN panels, but has slower pixel response times (more ghosting) and suffers from horizontal gamma shift while TN panels suffer from vertical gamma shift (http://bestmonitorsbyncx.createaforum.com/display-improvement-advice/ahva-ips-pls-vs-tn-vs-va/msg657/#msg657). 

There's only one review of the Acer which offers top tier pixel response times superior to some of the other tested models reviewed by the same reviewers while multiple Gigabyte (the KD25F tested by tested by Tom's Hardware tested (https://www.tomshardware.com/reviews/aorus-kd25f-gaming-monitor-240hz-rgb,6267-3.html) came with low/2.00 preset gamma) and LG's were tested and proven to suffer from significant preset color accuracy variance.  It's possible that the Acer does as well, but I can't prove that it does at this point, and it one of the fastest which is why it is the highest rated model.

At 240hz all of these monitors offer low input lag and very fast pixel response times or extremely similar gaming performance, but their contrast and preset color accuracy or image quality can vary significantly between the same models.  There are not enough reviews to know the if the BenQ XL2456 is consistent preset color accuracy wise, and it has abysmal out-of-the-box image quality, but it can be greatly improved by switching to the Standard Picture Mode (applies to all BenQ GL/RL/XL series monitors), but does suffer from some dark transparent overshoot ghosting (AMA High), or have slower pixel response times than the higher ranked competitors when the overdrive setting is lowered (AMA Off). 
Title: Best 240hz with Nvidia G-Sync
Post by: NCX on July 02, 2018, 07:36:17 pm
Best 240hz with Nvidia G-Sync

Blur Busters G-Sync Input Lag Testing & Optimal Lag Reducing Game Settings (https://www.blurbusters.com/gsync/gsync101-input-lag-tests-and-settings/14/)

#? Asus VG279QM (48-280hz Nvidia G-Sync) IPS panel
#1 AOC AG251FG (30-240hz Nvidia G-Sync) TN panel
#1 Acer XN253QX (30-240hz Nvidia G-Sync) TN panel
#1 MSI NXG251R (30-240hz Nvidia G-Sync) TN panel
#2 Acer XB2522Q bmiprz (30-240hz Nvidia G-Sync) TN panel
#3 Alienware AW2518H (48-240hz Nvidia G-Sync) TN
#4 Asus PG258Q (30-240hz Nvidia G-Sync) TN panel

The Acer XN253QX, AOC AG251FG and MSI NXG251R have vastly superior preset color accuracy compared to the rest, but there's only one review for each so I don't know how consistent they are.  All three also offer nearly identical gaming performance (low input lag and fast overshoot free pixel response times), so I can not pick a winner until more reviews come out.

 The Acer XB2522Q and Asus PG258Q are inconsistent and can come with mediocre or low preset gamma which results in washed out colors. The Asus comes with intentionally over-saturated colors which results in detail loss while the Acer does not. This also applies to the 144hz Asus MG248Q and PG248Q.  The Alienware is also inconsistent preset color accuracy (gamma) and contrast wise, is inaccurate at best (preset gamma neither follows the sRGB or HDTV/REC 709 standard and causes black crush), but is not intentionally over-saturated and is cheaper than the Asus.

The Asus VG279QM has 48-280hz Nvidia G-Sync, is very accurate, has good image quality (much better than TN panels), fast pixel response times with minimal overshoot, but has a 27.5ms delay (measured by PC Lab PL (https://pclab.pl/art83106-3.html)) which is very high for a gaming monitor.

Example of Asus PG258Q (left) over-saturation resulting in detail loss and weird colors vs normal monitor (IPS panel on the right) by SweClockers (http://sweclockers.com/test/23935-asus-rog-swift-pg258q-240-hz-gamingskarm-i-premiumklass/6#content):

(https://farm5.staticflickr.com/4338/37130194440_6052e885cd_b.jpg) (https://flic.kr/p/Yz4Xdd)
SWEC Asus PG258Q with Over-Saturation vs. IPS (https://flic.kr/p/Yz4Xdd) by Deepinthesky Teslastorm (https://www.flickr.com/photos/97364704@N08/), on Flickr
Title: Correct Display Height=Reduced AHVA/IPS/PLS Glow
Post by: NCX on July 02, 2018, 07:37:34 pm
Correct Display Height=Reduced AHVA/IPS/PLS Glow

Read The Article (http://bestmonitorsbyncx.createaforum.com/display-improvement-advice/ips-vs-tn-right-wrong-ways-to-use-or-view-how-to-vastly-reduce-ahvaipspls-glow-i/) and/or watch The Extended YouTube Version (http://tinyurl.com/y98akyte)
https://www.youtube.com/watch?v=cBAQ4Toxt9U
Title: Re: Best Reviewed Flicker Free 240hz Monitors
Post by: NCX on July 02, 2018, 07:38:06 pm
Improve Perceived Contrast/Black Depth & Reduce Glare With Bias Lighting

Read the Steemit Article (https://steemit.com/displays/@ncx/high-display-brightness-and-room-lighting-the-importance-of-light) and/or watch it on YouTube
https://www.youtube.com/watch?v=s1Dnp7RTZWs
Title: Acer 240hz
Post by: NCX on July 02, 2018, 07:38:36 pm
Acer

Acer XB252Q

Review By Belgium Hardware (http://nl.hardware.info/product/386707/acer-predator-xb2-xb252q-bmiprz/testresultaten)
Review By Les Numeriqes (http://lesnumeriques.com/moniteur-ecran-lcd/acer-predator-xb252q-p39093/test.html)
Review by PRAD (https://www.prad.de/testberichte/test-monitor-acer-predator-xb252qbmiprzx/)
Review By Sweclockers (https://www.sweclockers.com/test/24456-acer-predator-xb252q-240-hz-skarm-med-nvidia-g-sync/1#content)


Acer XB272Q

Review By Les Numeriqes (http://lesnumeriques.com/moniteur-ecran-lcd/acer-xb272-p40205/test.html)


Acer Nitro XF252Q

Review by TFT Central (https://www.tftcentral.co.uk/reviews/acer_nitro_xf252q.htm)

Matte 1920x1080 240hz AUO TN panel with a fully adjustable stand, VRB (back-light strobing), AMD Free-Sync (40-240hz), Displayport, 2x HDMI 2.0 (240hz), 4x USB 3.0 and 3.5mm Audio Out.  The Acer is fairly accurate but has high (2.5 average) gamma (https://www.tftcentral.co.uk/reviews/acer_nitro_xf252q.htm#colour) which causes black crush (loss of detail in dark scenes), though it can be reduced by setting the gamma to 1.8, but doing so sets the gamma slightly too low resulting in slightly washed out colors.  The XF252Q has negligible or extreme low input lag (https://www.tftcentral.co.uk/reviews/acer_nitro_xf252q.htm#lag) and the fastest pixel response times out of all the monitors TFT Central tested (oscilloscope measurements (https://www.tftcentral.co.uk/reviews/acer_nitro_xf252q.htm#detailed_response)) which means it is one of the fastest LCD panels in existence, however it does suffer from a tiny bit of overshoot, especially at 60hz.


Acer XN253QX

Review by PC Monitors (https://pcmonitors.info/reviews/acer-xn253qx/)


Matte 1920x1080 240hz AUO TN panel with a fully adjustable stand, ULMB (back-light strobing), Nvidia G-Sync (40-240hz), Displayport, 2x HDMI 2.0 (240hz), 4x USB 3.0 and 3.5mm Audio Out.  The Acer is preset to the Standard Mode which is very accurate (https://pcmonitors.info/reviews/acer-xn253qx/#Calibration) since it can cover 99% of the sRGB color space, however it does slightly over and under-saturate some colors (https://pcmonitors.info/wp-content/uploads/2019/07/XN253QX-colour-gamut.png) like most 240hz TN panels, and has slightly flawed gamma since it is slightly too high (2.3 average), but not enough to cause black crush or loss of details in dark scenes.  The Acer has negligible input lag at 240hz (3.26ms measured by PC Monitors with the SMT Tool (https://pcmonitors.info/reviews/acer-xn253qx/#Responsiveness)), as well as top tier and overshoot free overdrive with very fast pixel response times (preset Normal overdrive setting) and nearly as little color streaking and motion blur an LCD can provide without back-light strobing, which the Acer also supports (ULMB) at 120 and 144hz.  The ULMB feature does not work properly at 100hz since it drops back down to 90hz and causes stutter.


ACER KG251QD

Review by =DEAD= (https://4k-monitor.ru/reviews/240_gts_na_khalyavu_obzor_i_testirovanie_igrovogo_full_hd_monitora_acer_nitro_kg251qd/)

Matte, 240hz, 1920x1080, AUO TN (M250HTN01.3) panel with 40-240hz AMD Free-Sync (Nvidia G-Sync Compatible), Displayport, 2x HDMI 2.0 and 3.5mm Audio Out.  The KG251QD is preset to the Standard mode which suffers from dull or washed out colors and shades since it can not fully cover the SDR (HDTV/REC 709 & sRGB) color spaces (it significantly under-saturates greens (https://4k-monitor.ru/upload/medialibrary/7c5/7c5095ee5b3ac9e2effbc2df71c07447.png); this is common among 240hz TN panels) and has low gamma (1.98 average (https://4k-monitor.ru/upload/medialibrary/200/200b0aea68592b3015fe56627ad63901.png)). =DEAD= does not measure the input lag or signal delay, but does test the overdrive or response times; the KG251QD has very fast pixel response times with minimal overshoot ghosting when the default Normal over drive setting is used (https://4k-monitor.ru/reviews/240_gts_na_khalyavu_obzor_i_testirovanie_igrovogo_full_hd_monitora_acer_nitro_kg251qd/#elem-12).  The KG251QD uses a grainy or sparkly matte coating (https://4k-monitor.ru/reviews/240_gts_na_khalyavu_obzor_i_testirovanie_igrovogo_full_hd_monitora_acer_nitro_kg251qd/#elem-15) which dulls color and appears grainy or sparkly when light colors and white are displayed.
Title: Alienware 240hz
Post by: NCX on July 02, 2018, 07:38:56 pm
Alienware (Dell)

Alienware AW2518H

Review by Alexander Gryzhin (https://4k-monitor.ru/reviews/obzor_alienware_aw2518h/) (=DEAD=)
Review By Sweclockers (https://www.sweclockers.com/test/25402-alienware-aw2518h-25-tumsskarm-med-nvidia-g-sync-och-240-hz/1#content)
Review By Tomís Hardware (https://www.tomshardware.com/reviews/alienware-aw2518h-240hz-g-sync-monitor,5283.html)
Title: AOC 240hz
Post by: NCX on July 02, 2018, 07:39:16 pm
AOC

AOC AG251FZ

Measurements (https://nl.hardware.info/product/382008/aoc-agon-ag251fz/testresultaten) and Review by Belgium Hardware (https://nl.hardware.info/reviews/7580/5/16-gaming-monitoren-review-de-144hz-voorbij-aoc)
Review By IT Hardware Poland (http://ithardware.pl/testyirecenzje/test_aoc_agon_ag251fz_240_hz_w_lepszej_cenie-2083.html)
Review By Les Numeriqes (http://lesnumeriques.com/moniteur-ecran-lcd/aoc-agon-ag251fz-p36445/test.html) (terrible contrast and preset gamma)
Review By Sweclockers (https://www.sweclockers.com/testpilot/23497-testpilot-aoc-agon-ag251fz-240-hz-for-den-otalige)
Review By Tomís Hardware (https://www.tomshardware.com/reviews/aoc-ag251fz-240hz-freesync-monitor,5230.html)

The AOC uses a 240hz matte 6 bit +FRC AUO TN panel with AMD Free-Sync, suffers from the typical contrast and gamma lottery (TFT Central set the gamma from Mode 1 to 3), but has accurate preset RGB levels, especially the unit tested by Belgium Hardware. The AOC has very fast pixel response times with zero overshoot ghosting when the overdrive setting is set to Medium.

The AOC has mediocre image quality due to its low preset gamma and sRGB color space coverage (89% out of the box and 91.1% after calibration).


AOC AG251G

Review By PC Monitors (http://pcmonitors.info/reviews/aoc-ag251fg/)

Very accurate matte 240hz 6 bit +FRC AUO TN panel with Nvidia G-Sync.
Title: Asus 240hz
Post by: NCX on July 02, 2018, 07:39:35 pm
Asus

Asus PG258Q

The Asus PG258Q has a fully adjustable stand, a fake frame-less casing with a perceived black depth reducing inner black bezel, Displayport (240hz, G-Sync and ULMB), HDMI (60hz) and 2x USB 3.0 ports. The PG258Q is preset to the Racing mode which suffers from inteionally over-saturated colors (reduce Saturation setting to fix) preset color accuracy (gamma) variance (low preset gamma averaging around 1.8 or 2.1-2.2), though units with low gamma can be improved by switching the gamma setting from 2.2 to 2.4 on units with low preset gamma. The PG258Q's sRGB color space coverage is also below average in the 90-93% range.

Review by Alexander Gryzhin (https://4k-monitor.ru/reviews/obzor_asus_rog_swift_pg258q/) (=DEAD=)
Review By Belgium Hardware (http://be.hardware.info/reviews/7305/asus-rog-swift-pg258q-review-240hz-met-g-sync)
Review By HDTV Polska (http://hdtvpolska.com/asus-pg258q-test-240hz-monitora-dla-graczy/)
Review By IT Hardware Poland (http://ithardware.pl/testyirecenzje/test_monitora_asus_rog_pg258q_240_hz_swiety_graal_fanow_counter_strike_a-1829.html)
Review By Playwares (http://playwares.com/dpreview/53695484)
Review By PRAD (http://prad.de/new/monitore/test/2017/test-asus-pg258q.html)
Review By Sweclockers (http://sweclockers.com/test/23935-asus-rog-swift-pg258q-240-hz-gamingskarm-i-premiumklass)
Review By TFT Central UK (http://tftcentral.co.uk/reviews/asus_rog_swift_pg258q.htm)
Review By Tomís Hardware (http://tomshardware.com/reviews/asus-rog-swift-pg258q-monitor,5019.html)

Asus XG258Q

Added Asus XG258Q Review by Playwares (http://playwares.com/dpreview/56914352) to my

Matte 1920x1080 240hz AUO TN panel with AMD Free-Sync (48-240hz range) and back-light strpbing (ELMB @100/120hz) and good preset color accuracy, as well as gamma controls to combat potentially low preset gamma (washed out colors) 240hz panels can come with.


Asus  VG279QM

Review by =DEAD= (https://3dnews.ru/1002858/obzor-asus-tuf-gaming-vg279qm)
Review by PC Lab PL (https://pclab.pl/art83106.html)

Fully adjust-able, matte, 1920x1080, 280hz IPS (probably AUO AHVA) panel with back-light strobing (ELMB), Nvidia G-Sync (48-280hz), Displayport, 2x HDMI 2.0 and 3.5mm Audio Out.  The VG279QM is preset to the Racing Game Visual Mode which is very accurate and almost properly covers the sRGB color space, but has slightly too low gamma (2.1-2.2 (https://pclab.pl/zdjecia/artykuly/markowal/020/ASUS-VG279QM/gamma.jpg)) under-saturates blue slightly and over-saturates greens, oranges, reds and yellows by over 10% (https://3dnews.ru/assets/external/illustrations/2020/02/03/1002858/racing_gamut.png).  The VG279Q supports HDR, but it is best lest off since it lacks almost all of the features required for true HDR, especially in regards to the DCI-P3 color space coverage since it peaks around 80%.  The overdrive is preset to the Trace Free 60 setting which provides fast and overshoot free pixel response times along with the higher Trace Free 80 setting (https://3dnews.ru/1002858/page-2.html#Качество%20градиентов%20и%20скорость%20отклика), but it has a 27.5ms delay (measured by PC Lab PL (https://pclab.pl/art83106-3.html)) which is very high for a gaming monitor.
Title: BenQ 240hz
Post by: NCX on July 02, 2018, 07:39:55 pm
BenQ

BenQ Zowie XL2450

Matte 240hz TN panel with back-light strobing.  The BenQ XL2450 has horrible color presets and can only be improved to the point where it is passable by switching it from the horrible FPS Picture Mode to the Standard mode and by changing the Gamma to Mode 3.

Review by Alexander Gryzhin (https://4k-monitor.ru/reviews/obzor_benq_zowie_xl2540/) (=DEAD=)
Review By Belgium Hardware (http://be.hardware.info/reviews/7148/benq-zowie-xl2735-en-xl2540-review-gaming-monsters)
Review By Les Numeriqes (http://lesnumeriques.com/moniteur-ecran-lcd/benq-zowie-xl2540-p36279/test.html)
Review By Playwares (http://playwares.com/dpreview/52030207)
Review By Rtings (http://rtings.com/monitor/reviews/benq/zowie-xl2540-esports-gaming-monitor)
Review By Sweclockers (https://www.sweclockers.com/test/23527-benq-zowie-xl2540-gamingskarm-med-akta-240-hz)

BenQ Zowie XL2456

Matte 240hz TN panel with back-light strobing.  The XL2456 has the worst preset color accuracy I've seen in a review aside from the first 2560x1440 AH-IPS panel with Plasma Deposition Coating from Monoprice in 2013 thanks to the BenQ's FPS modes very low gamma (<1.6) and contrast (300:1). Fortunately the BenQ can be improved by switching from the abysmal preset FPS Mode to the Standard Mode to provide decent results for a TN panel, as is the case for all of their gaming monitors. Choose between some overshoot ghosting (preset AMA High overdrive setting) or slow pixel response times versus competitors (AMA Off).

Review by HDTV Poland (http://hdtvpolska.com/benq-zowie-xl2546-test-najszybszego-240hz-monitora-z-dyac-dla-e-sportu/)
Review by PC Labl PL (https://pclab.pl/art78985.html)
Review By Playwares (http://playwares.com/dpreview/55048448)

BenQ Zowie XL2740

Review By Playwares (http://playwares.com/index.php?mid=dpreview&page=2&document_srl=56313054)

The X2470 has terrible image quality, even once switched from the preset FPS modes to the Standard Picture Mode since it has very low (1.7 average) preset gamma (resulting in very washed out image quality_ which can only be slightly improved by (2.0 average) changing the Gamma to Mode 5.


BenQ Zowie XL2746S

Review by Playwares (http://playwares.com/dpreview/57666851)

Fully adjust-able, matte, 1920x1080 240hz TN panel with AMD Free-Sync, DyAC (back-light strobing), Displayport, Dual-Link DVI, HDMI 1.4, HDMI 2.0, 2x USB .0 and 3.5mm Audio Out. The has abysmal image quality out-of-the-box and needs to be set to the Standard Picture Mode (1.97 gamma average versus sub 1.8 gamma default) to be improved, though it still can not fully cover the SDR (http://down.playwares.com/xe/files/attach/images/105/836/067/28ba306f20ff79baa93aeacca4586405.jpg) (HDTV/REC 709 & sRGB) color spaces. and have the Gamma setting changed, though I'm not sure if the Gamma 4 or 5 settings provide significantly superior results since Playwares did not test them.  The XL2746S has a 17ms delay at 60hz (common for 240hz TN panels), negligible input lag at 240hz (2-3ms measured with the SMT Tool) and very fast and pixel response times at 240hz (60hz not tested) when the default AMA High setting is used.
Title: Re: Best Reviewed Flicker Free 240hz Monitors
Post by: NCX on July 02, 2018, 07:40:20 pm
Crossover
Title: Re: Best Reviewed Flicker Free 240hz Monitors
Post by: NCX on July 02, 2018, 07:40:37 pm
Gigabyte

Gigabyte Aorus KD25F

Review by Belgium Hardware (https://be.hardware.info/reviews/9309/gigabyte-aorus-kd25f-review-tactische-stap-naar-240-hz)
Review by =DEAD= (https://4k-monitor.ru/reviews/obzor_gigabyte_aorus_kd25f/)
Review by Tom's Hardware (https://www.tomshardware.com/reviews/aorus-kd25f-gaming-monitor-240hz-rgb,6267.html) (low gamma (https://www.tomshardware.com/reviews/aorus-kd25f-gaming-monitor-240hz-rgb,6267-3.html))

Matte 1920x1080 240hz AUO TN panel with a fully adjustable stand, Aim Stablizer (https://4k-monitor.ru/reviews/obzor_gigabyte_aorus_kd25f/#elem-13) (back-light strobing), AMD Free-Sync (40-240hz), Displayport, 2x HDMI 2.0 (240hz), 2x USB 3.0 and 3.5mm Audio Out.  The KD25F's Belgium Hardware and =DEAD= tested are very accurate (preset Standard mode), can cover >93.5 of the sRGB color space (but fails to fully cover it as well as both over and under-saturates some colors (https://4k-monitor.ru/upload/medialibrary/22e/22e0d923f81baa4a60fd6a228d8bbc9f.png)), has good contrast for a 240hz TN panel (850:1-930:1), and has very fast pixel response times with no (Balance overdrive setting) or minimal overshoot and slightly faster pixel response times (Speed overdrive setting), but has high input lag at 60hz (240hz not measured; 19.8ms top screen Leo Bodnar device measurement).  The KD25F Tom's Hardware tested (https://www.tomshardware.com/reviews/aorus-kd25f-gaming-monitor-240hz-rgb,6267-3.html) came with low preset gamma which averages around 2.0 (https://img.purch.com/r/711x457/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS9ML0cvODQ3MDYwL29yaWdpbmFsL0tEMjVGLWdyYXktZGVmYXVsdC5qcGc=) resulting in washed out colors and shades, or image quality.  Tom's Hardware improved the gamma by changing the Gamma Preset from 3 to 4.
Title: HP 240hz
Post by: NCX on July 02, 2018, 07:40:52 pm
HP

HP OMEN X 25f

Review by RTINGS (https://www.rtings.com/monitor/reviews/hp/omen-x-25f)
Review by Tom's Hardware (https://www.tomshardware.com/reviews/hp-omen-x-25f-240-hz-gaming-monitor,6321-5.html)

Matte 1920x1080 240hz AUO TN panel with a fully adjustable stand, AMD Free-Sync (20-240hz range), Displayport, 2x HDMI 2.0, 2x USB 3.0 and 3.5mm Audio Out.  The HP has passable preset color accuracy (https://www.rtings.com/monitor/reviews/hp/omen-x-25f#comparison_1467), but the unit Rtings tested is too red (https://www.rtings.com/monitor/reviews/hp/omen-x-25f#comparison_1467), the unit Tom's Hardware Tested is too blue (https://www.tomshardware.com/reviews/hp-omen-x-25f-240-hz-gaming-monitor,6321-3.html), and it has slightly to low preset gamma (2.1 average) resulting in it slightly washed out colors along with the slightly low sRGB color coverage (https://i.rtings.com/images/reviews/monitor/hp/omen-x25f/omen-x25f-color-gamut-srgb-large.jpg), though it is normal for 240hz TN panels to not be ably to fully cover the sRGB color space.  The HP has negligible input lag (https://www.rtings.com/monitor/reviews/hp/omen-x-25f#comparison_1426) as well as top tier overdrive with extremely fast pixel response times and almost zero overshoot (https://www.rtings.com/monitor/reviews/hp/omen-x-25f#comparison_1425) when the Level 3 Response Time setting is selected.


HP Omen X 27

Review by TECHSPOT (https://www.techspot.com/review/1954-hp-omen-x-27-monitor/)

Matte, 2560x1440, 240hz TN panel with AMD Free-Sync with Displayport, HDMI 2.0, 2x USB 3.0 and 3.5mm Audio Out.  The HP is quite accurate, has a true 8bit panel, but 800:1 contrast.  The X27 has negligible input lag and very fast pixel response times when the Level 3 overdrive setting is selected at 240hz (60hz not tested).
Title: iiyama 240hz
Post by: NCX on July 02, 2018, 07:41:07 pm
iiyama
Title: Lenovo 240hz
Post by: NCX on July 02, 2018, 07:41:20 pm
Lenovo

Lenovo Y27GQ-25

Review by =DEAD= (https://4k-monitor.ru/reviews/poprobuy_dogoni_obzor_i_testirovanie_igrovogo_whqd_monitora_lenovo_y27gq_25/)

Fully adjust-able matte, 240hz, 2560x1440 TN panel with Displayport, G-Sync (24-240hz range over Displayport), Harmon Kardon 360 Speakers, HDMI 2.0, 3x USB 3.0 and 3.5mm Audio Out. The Lenovo Y27GQ-2 can fully cover the SDR (HDTV & sRGB) color space and only slightly over-saturates colors, is quite accurate over all, and can be improved by selected the sRGB mode (https://4k-monitor.ru/reviews/poprobuy_dogoni_obzor_i_testirovanie_igrovogo_whqd_monitora_lenovo_y27gq_25/#elem-6), but has average 800:1 contrast (https://4k-monitor.ru/reviews/poprobuy_dogoni_obzor_i_testirovanie_igrovogo_whqd_monitora_lenovo_y27gq_25/#elem-6) and suffers from obvious dark scene banding (https://4k-monitor.ru/reviews/poprobuy_dogoni_obzor_i_testirovanie_igrovogo_whqd_monitora_lenovo_y27gq_25/#elem-9).  The Lenovo has very fast pixel response times with no overshoot (https://4k-monitor.ru/reviews/poprobuy_dogoni_obzor_i_testirovanie_igrovogo_whqd_monitora_lenovo_y27gq_25/#elem-12) when the default Normal Over Drive setting is used; =DEAD= does not test display lag.
Title: LG 240hz
Post by: NCX on July 02, 2018, 07:41:41 pm
LG

LG 27GK750F

27" matte coated 1920x1080 240hz AUO M270HTN02 panel with AMD-Free-Sync and back-light strobing.

Review by Alexander Gryzhin (https://3dnews.ru/970642) (=DEAD=)
Review By Playwares (http://playwares.com/index.php?mid=dpreview&page=4&document_srl=55780693)
Review By TFT Central UK (http://www.tftcentral.co.uk/reviews/lg_27gk750f.htm)
Title: MSI 240hz
Post by: NCX on July 02, 2018, 07:42:00 pm
MSI

MSI NXG251R

Review by Playwares (http://playwares.com/dpreview/57307377)

Matte 1920x1080 240hz with a fully adjustable stand, Nvidia G-Sync (30-240hz), 144hz ULMB (back-light strobing) Displayport, HDMI (60hz), 3x USB 31 and 3.5mm Audio Out.  The default Gaming mode offers fairly accurate color preset performance.  It has negligible input lag (3ms measured with the SMT Tool) and very fast pixel response times with minimal overshoot when the Fast Response Time setting is used.
Title: Samsung 240hz
Post by: NCX on July 02, 2018, 07:42:21 pm
Samsung

Samsung C27RG50FQ

Review by Tom's Hardware (https://www.tomshardware.com/reviews/samsung-27-crg5-240hz-gaming-monitor)

Curved (1500R), matte 1920x1080 240hz, 8 bit VA panel with a Nvidia G-Sync compatible AMD Free-Sync (30-240hz), 144hz ULMB (back-light strobing) Displayport, 2x HDMI 2.0, and 3.5mm Audio Out.  The VA panel in the C27RG50FQ has over 3,000:1 contrast, and fairly accurate preset colors, but very high (in the 0-20% white range) (https://cdn.mos.cms.futurecdn.net/hpY7s2SENDF2fUoCpWW5F6-650-80.jpg) and skewed gamma which causes black crush, or the loss of details in dark scenes, but can be improved by changing the gamma setting from 1 to 3.  The C27RG50FQ has fast pixel response times and negligible input lag (https://www.tomshardware.com/reviews/samsung-27-crg5-240hz-gaming-monitor/4), but the default HDMI black level setting is set to Low which may cause black crush depending on the device the monitor is connected to (read the Set Up and Calibration section of Tom's Hardware Review (https://www.tomshardware.com/reviews/samsung-27-crg5-240hz-gaming-monitor)).


Samsung C27RG50FQ

 Review by Pro Hardware (https://prohardver.hu/teszt/samsung_crg5_monitor_244_hz/samsung_crg5.html)
Review by Tom's Hardware (https://www.tomshardware.com/reviews/samsung-27-crg5-240hz-gaming-monitor)

Curved (1500R), matte 1920x1080 240hz, 8 bit VA panel with a Nvidia G-Sync compatible AMD Free-Sync (30-240hz), 144hz ULMB (back-light strobing) Displayport, 2x HDMI 2.0, and 3.5mm Audio Out.  The VA panel in the C27RG50FQ has over 3,000:1 contrast, and fairly accurate preset colors, but very high (in the 0-20% white range) (https://cdn.mos.cms.futurecdn.net/hpY7s2SENDF2fUoCpWW5F6-650-80.jpg) and skewed gamma which causes black crush, or the loss of details in dark scenes, but can be improved by changing the gamma setting from 1 to 3.  The C27RG50FQ has fast pixel response times and negligible input lag (https://www.tomshardware.com/reviews/samsung-27-crg5-240hz-gaming-monitor/4), but the default HDMI black level setting is set to Low which may cause black crush depending on the device the monitor is connected to (read the Set Up and Calibration section of Tom's Hardware Review (https://www.tomshardware.com/reviews/samsung-27-crg5-240hz-gaming-monitor)).
Title: ViewSonic 240hz
Post by: NCX on December 07, 2019, 01:37:21 pm
ViewSonic

ViewSonic XG2530

Review by Les Numeriques (https://www.lesnumeriques.com/moniteur-ecran-lcd/viewsonic-xg2530-p39261/test.html)
Review By PC Monitors (http://pcmonitors.info/reviews/viewsonic-xg2530/)
Review By Sweclockers (https://www.sweclockers.com/test/25179-viewsonic-xg2530-tn-gamingskarm-med-freesync-full-hd-och-240-hz/1#content)
Review By Tomís Hardware (https://www.tomshardware.com/reviews/viewsonic-xg2530-240hz-freesync-monitor,5392.html)