Author Topic: Best 27-28" 4K 3840x2160 & 5K 5120x2880 AHVA/IPS/PLS Monitors  (Read 41446 times)

NCX

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Dell
« on: July 31, 2017, 11:53:16 pm »
Dell

Dell P2715Q

Review by Alexander Gryzhin (=DEAD=)
Measurements By Belgium Hardware

Units made before March 2016 (revisions A00 to A02) have HDMI 1.4 which is limited to 30hz @4K while A03 revisions and higher have HDMI 2.0 which supports 4K @60hz, but HDMI 2.0 support must be enabled manually in the menu. Dell put out an article with this information and instructions on how to enable HDMI 2.0.


Dell UP2718Q

Review by Les Numeriques (10ms middle screen Leo Bodnar lag measurement)
Review by TFT Central (25ms SMT Tool lag measurement)
Review by Tom's Hardware

Matte 4K AH-IPS with local dimming, 1000cdm/2 brightness and HDR Color.


Dell U2718Q

Measurements and Review by Belgium Hardware
Review by Rtings

Fairly accurate matte 4K LG AH-IPS with height adjustable stand, Displayport, HDMI 2.0, mini Displayport, 4x USB 3.0 ports and 3.5mm Audio Out.  It's not as accurate as well as more reflective than the P2715Q which also has a perceived black depth increasing dark matte grey bezel versus the U2718Q's fake frame-less casing's black bezel. The Dell uses LED PWM Dimming or Flicker which decreases motion clarity and may cause some people to suffer from health issues such as eyestrain and/or headaches.

Quote from: Rtings
The Dell U2718Q uses a dual PWM flicker to dim the backlight. There is a 10 kHz flicker that is always present, but this flicker is not visible at all. There is a secondary flicker at 650 Hz, but due to the secondary wave the backlight does not completely shut off



Dell U2720Q

Review by =DEAD=

Fully adjust-able, matte, 3840x2160 LG AH-IPS panel with Disaplyport, HDMI 2.0, USB-C, 3x USB 3.0, USB-C Fast charge and 3.5mm Audio Out.  The UP2720Q uses a semi-wide gamut panel which over-saturates SDR color by 31%, has a 1100-1200:1 contrast ratio, and is quite accurate, especially when set to the sRGB mode, but it locks the color controls and can only cover 95.6% of the sRGB color space which is good, but not when considering the price of the U2720Q.  =DEAD= does not measure input lag, and the UP2720Q has decent, but not great, overshoot free pixel response when the default Normal Response Time setting is used.
« Last Edit: May 17, 2020, 05:00:57 pm by NCX »