Author Topic: Best 240-280hz Monitors  (Read 17101 times)

NCX

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Best 240hz with AMD Free-Sync and/or Back-light strobing
« on: July 02, 2018, 07:13:26 pm »
Best 240h-280hz with AMD Free-Sync
and/or
Back-light strobing

27" 1080p monitors are ranked lower than 25" if similar or worse

#1 Acer Nitro XV273 X (20-240hz AMD Free-Sync & back-light strobing) IPS
#2 Alienware AW2720HF (20-240hz AMD Free-Sync) IPS
#2 LG 27GN750 (40-240hz AMD Free-Sync) IPS
#4 HP X27 (2560x1440 ?-240hz AMD Free-Sync) 8 bit TN
#4 Samsung C27RG50FQ (?-240hz AMD Free-Sync & back-light strobing) VA
#5 Alienware AW2518HF (40-240hz AMD Free-Sync) TN
#6 Gigabyte Aorus KD25F (40-240hz AMD Free-Sync & Aim Stabilizer/back-light strobing) TN
#6 Acer XF252QX BMIIPRZX (40-240hz AMD Free-Sync & back-light strobing) TN
#7 LG 27GK750F (48-240hz AMD Free-Sync & back-light strobing) 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, but still fast enough for most.

AHVA Acer XV273 X versus Acer XF252Q TN panel 240hz oscilloscope measurements by TFT Central.

The Acer XV273 X is significantly more accurate, has superior gradient handling, vastly superior 60hz overdrive, and slightly lower input lag at 60hz (11.4ms vs 15ms), but slightly slower, though still excellent 240hz overdrive versus the Alienware AW2720HF.

The Alienware AW2720HF is preset to the RPG mode which is fairly accurate, but has too high (2.39 average) and skewed gamma resulting in colors and shades being a bit too dark, and loss of detail or black crush when viewing dark content.  The Alienware also can not fully cover the SDR (HDTV/REC 709 & sRGB) color spaces, so it can not display some colors as accurately and vibrantly as it should, even when calibrate, but it does come close to doing so (97%), and can still be considered good.  The AW2720HF has negligible input lag and offers very fast and nearly completely overshoot free pixel response times at 240hz when the Fast  overdrive setting is used, but has slow pixel response times and higher than average (negligible; 15ms delay at 60hz vs typical 9-10ms measured by Rtings) at 60hz which prevents it from being an outstanding console and PC gaming monitor.

The LG has low average gamma (2.05) resulting in some washed out colors and shades, and suffers from a slight pink tint, but covers 99% of the sRGB color space or does not suffer from color de-saturation (assuming correct gamma).  The 27GN750 has negligible input lag at both 60hz and 240hz, and has very fast pixel response times at both refresh rates which makes it great for both 60hz console and 240hz PC gaming when the Faster Response Time setting is used.

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

The AW2518HF has accurate but too high gamma, accurate but too blue color, and like most 240hz TN panels can not fully cover the SDR (HDTV/REC 709 & sRGB) color spaces (caps at 93%; over and under-saturates some colors).  Overall it has great image quality for a TN panel, low input lag and good overdrive, though PC Lab does not provide much information about the overdrive so I can not properly compare it to competitors until more detailed reviews come out.

Multiple Acer XF252QX BMIIPRZX, Gigabyte KD25F (the KD25F tested by tested by Tom's Hardware tested came with low/2.00 preset gamma) and LG 27GK750F reviews prove that they suffer from significant preset gamma, contrast (LG) and color accuracy variance, and may come with low gamma resulting in washed out colors and shades, and none can fully cover the SDR (HDTV/REC 709 & sRGB) color spaces.
« Last Edit: May 24, 2020, 04:31:23 pm by NCX »