This 4k is at present a really great value. It is a 39.5 inch 4k behemoth! It can do 4k / 60hz over HDMI and DisplayPort 1.2! It even does 4:4:4 Chroma, though I’d recommend you’d use DisplayPort for that.
Unboxing this, the first thing you want to do is set the OSD to English. It’ll be in Korean but you just arrow over and set this option and then life is a lot easier. The next thing you want to do is turn “Vivid” off. This makes things really pop in movies but if you’re using this as a monitor, you don’t want this. It has a couple of color modes as well, though ours came on the reasonably sane default of sRGB.
It has two HDMI ports (one 1.2, one 2.0), One DL DVI and one DisplayPort 1.2. Also, analog audio in. It has built-in 10-watt speakers which you are probably going to use.
You really do want to use this display with DisplayPort 1.2 because HDMI can be a bit squirrely if you get a dodgy cable or the HDMI on your computer doesn’t really support everything, but it does support 4k/60hz via HDMI. It’s tough to support 4:4:4 chroma w/hdcp and 4k/60hz on HDMI – displayport solves it cleanly.
Test Pattern: http://cdn.avsforum.com/b/b4/b4a44044_vbattach208609.png
After we tested the Samsung U28D590D, one of the first real, affordable 4k displays – we thought that might be a good comparison monitor for this one. Be sure to check out our full Samsung U28D590D review, but overall the opinion there was not great. And here we have this monitor and it absolutely destroys the Samsung U28D590D in every way imaginable. I was blown away.
In testing, This A399 39.5” display has a faster response time – check out our other video titled Monitor Latency Shootout – than the U28D590D. The A399 is nearly 30 milliseconds faster on the response time. That’s mind blowing since TN panels are rated at being some of the fastest panels around. We did a quick gaming test in GTA5. I could not detect any input lag. I was using an R9 290X with DisplayPort 1.20 and it was buttery smooth at the native 4k resolution with other settings around medium so I could get a high frame rate.
The brightness is around 350 mcd/m squared and it is noticeably brighter in the center than around the edges when looking at a pure white screen. Unlike the TN panel, the color shift is negligible. That’s because the panel is, I think, a Super MVA, Normally Black, Transmissive Panel type. To my eye it looks as good as IPS panels from around 2010, but the blacks are deep and rich. The pixel arrangement is RGB vertical stripe.
The viewing angles are 176 horizontal and vertical though the slight color shift is more pronounced when looking at the TV from above than side to side. While playing GTA5 I found the optimum distance from the display was about 18 inches or so. At that distance, windows does not need display scaling. If you follow our channel, you probably know that we love 27” monitors that are 2560x1440. Those are about 107 pixels per inch. This monitor is almost the same pixel density – a little higher – at 113 pixels per inch. That means you can use windows without the god awful display scaling which still doesn’t work right in windows 10 anyway. At comfortable viewing distances, the text was still large perfectly readable – it looks about the same as it does on a 27” 1440p monitor.. it’s just that this monitor is 39.5 inches and almost a million more pixels than # pixels in two 27” displays!
What are the downsides? Well, there are two and one of them may be a big deal to you. This panel type seems more on the side of “TV” than “Computer Monitor” in terms of the way it’s engineered. The biggest black mark against it, in addition to the slightly inconsistent screen brightness distribution, is this shadowing around the edges of the display. Windows 10 does this kind of shading around window edges. It’s a bit offputting at first, but I found that I got used to it after 5 minutes and then it wasn’t a big deal. I don’t notice it in gaming at all. I was also able to lessen the shadowing by loosening some of the screws on the edges of the display a half turn.
The other annoying thing is the power cord is built in, and non-removable. When you buy from the link below a free adapter is included to adapt the cord to the plug type of your region, but the non-removable cord is silly. For me, these two things are not really a big deal. Color accuracy, viewing angle, response time and price win the argument for me.
The pricepoint reall makes or breaks this monitor. And it is priced super aggressively, in my opinion, for the feature set and real-world appeal. Especially when you contrast the features here with other 4k monitors like the Samsung U28D590D. Monitors this good this inexpensive will drive the prices with the big name players way down.
Look, even with the shadowing, hands down if it’s a choice between the Samsung U28D590D and this monitor I would go for this monitor every time.
It does have a 200mm x 200mm VESA mount
Ready To Buy? Click here: AMH A399U 4K UHD Monitor on Ebay
This is a companion discussion topic for the original entry at https://teksyndicate.com/videos/a399u-affordable-4k-gaming-monitor