Author Topic: Best 144-170hz 1440p Monitors  (Read 45147 times)

NCX

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« Reply #15 on: August 29, 2018, 07:38:58 pm »
HP

HP 27 Omen

Matte 144-165hz AUO TN panel with Nvidia G-Sync (30-165hz range) and back-light strobing (ULMB up to 120hz)

Review by Review by =DEAD= (Proof of lighter matte coating vs non-Dell G-Sync TN panels)
Hardware Info Review and link to the colorimeter and oscilloscope measurement page.

No mention of banding or the matte coating.

It's quite accurate and vibrant (without over-saturation) since it has accurate preset gamma (2.19 average which is significantly superior to the S2716DG) and 96% sRGB color space coverage. The contrast ratio of the unit tested is under 900:1 which is slightly below average but normal for 27" 1440p TN panels. It can also output 410cmd/2 brightness when ULMB (back-light strobing) is enabled vs 120cdm/2 maximum a few years ago.

It has 13% average overshoot when the bet overdrive setting is used versus the overshoot ghosting plagued S2716DG which has 35%. A direct competitor, the PG27VQ has 3% along with the PG279Q.

The top screen 60hz Leo Bodnar (limited to 1080p @60hz) input lag measurement is half a frame (16.7ms) @8ms, similar to the 7-11.7ms of competing 1440p TN panels with G-Sync. The fastest monitors measure around 1.8-4ms. The 165hz lag value will be less, and 8ms is not something to fret about unless you are the Flash.

Review by Rtings

They state the color grey scale and color gradient banding is worse than that of the S2417DG and S2716DG, but they don't mention the dark scene banding the Dell monitors suffer from. The HP has significantly better preset color accuracy than both Dell monitors they tested, but the contrast is still below average (800:1) at 755:1 (calibrated contrast).

Here are some comments I made about the Belgium Hardware review I surmised and posted 7 months ago:

"It has 13% average overshoot when the bet overdrive setting is used versus the overshoot ghosting plagued S2716DG which has 35%. A direct competitor, the PG27VQ has 3% along with the PG279Q."

I tested the original S2716DG with the very grainy matte coating (slow loading archive review link) and, better preset color accuracy and 900:1 contrast, as well as did not see obvious banding in dark scenes, but I did not view the Dawn Engine loading screen typically used to show the banding on the S2716DG. The Acer XF240H and Viewsonic XG2402 I tested both suffered from the same banding in the Dawn Engine image, but not in any of the other dozens of photos (The Order 1886 example) and screen shots I displayed on both. My 8 bit overclock-able glossy 1440p H-IPS (2011 panel tech) and PLS (worse since it requires more corrections by the ICC profile) also suffer from noticeable banding in the bright light source in the center of the crescent, my 32" 4K 8 bit UHD32DR (AHVA panel) has a tiny bit, and my VP2780-4K (AH-IPS) has even less since it has a 14 bit 3D LUT. I think the source has banding natively since it is of low quality, but the bad FRC of the AUO TN panels definitely makes it far worse.


HP 27x

Review by Les Numeriques

Fully adjustable matte 2560x1440 144hz AUO TN panel with Nvidia G-Sync, Displayport, HDMI 2.0 and 3.5mm Audio Out.  I don't know what type of matte coating it uses or if it suffers from the same dark scene banding as the Dell S2417DG or S2716DG, and it has very poor preset color accuracy and washed out colors thanks to the average 1.8 preset gamma.
« Last Edit: February 02, 2020, 04:28:56 pm by NCX »