Which 4k UHD monitor?

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Buying a monitor? Please refer to this post. We appreciate your support!

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    Hi John 82,

    This thread, which I’ve merged yours with, and the recommendations section should provide good food for thought. I’m afraid you won’t find a glossy ‘4K’ UHD display of that size as there aren’t any. ‘Semi-glossy’ is quite a misleading term and is open to a great degree of interpretation. All it really means is that the haze value (level of diffusion) is some way between ‘traditional matte’ and ‘traditional glossy’. Pretty much all the 27″ and 32″ IPS-type ‘4K’ UHD models on the market feature such a screen surface as covered in relevant reviews. But even then you need to be careful as a monitor can have a ‘light’ matte screen surface which some users would call semi-glossy, yet still have a grainy surface texture.


    Hey guys, I’m an Apple user so I’ll disclose that first.

    I’m currently using a 2013″ MacBook Pro 15″ Retina display, but by either December 2017 or early 2018 I’ll be either buying a new MacBook Pro, or a 21″ 4K iMac and I want to buy a 4K monitor to go along with it.

    Any recommendations for a 4K monitor that’s up to 24″…. I’m not looking for advice outside of actual monitor suggestions. I know LG partnered with Apple and they have a 4K display with USB-C but I’m wondering if you guys think there’s a better option? Those monitors aren’t compatible with my current MacBook.

    I saw this monitor on amazon – https://pcmonitors.info/reviews/dell-p2415q/.

    the only problem with it is I would need to buy an adapter to use it with the new MacBooks or potentially new iMacs if they upgrade to USB-C.

    Thanks for the replies guys and taking the time to read this thread. 🙂


    Hi DrewDM,

    I’ve merged your thread with this one as it’s an appropriate thread. Hopefully this doesn’t cause too much confusion as sometimes notifications don’t work correctly when threads are merged like this. It would be nice to talk about some options for Mac users and for that matter ~24″ options here.

    I feel that the Dell P2415Q would be an appropriate choice and I don’t think you should worry about future compatability with USB-C systems. USB-C is designed to be very ‘friendly’ (compatible without issue) with DP signals. The adaptors are highly reliable and not too expensive – they will simply work without negatively impacting your experience.

    P.S. I realise you’re from Canada and would want to buy from the Canadian Amazon. We do have quite a decent following in Canada, so I’m looking to put up some links there in the very near future. If you do decide to go for that model, please look out for a link at the bottom of the review or the recommendations section. 🙂


    Thanks, I’ve been looking at the DellP2415Q for a while now, is that the best option? Any idea how the new LG 21″ 4K monitor compares to it? The monitor you can buy directly off the Apple website?

    Follow up question, that I’ve always wondered but figured I’d ask the “experts” of this site: HDMI adapters or USC-C adapters don’t reduce image quality or response time do they?

    I’m trying to figure out exactly how I want to configure my set up now and in the future and I’m wondering what I should be aiming for in terms of ports/connection type (thunderbolt 3/USB-C/Display port 1.2HDMI? etc etc)

    My desk supports 2- 24″ Monitors MAX. I can link the table or a picture if needed.

    I’m not a PC gamer, I’m a console gamer and I have a BenQ 1080p monitor for that right now (PS4)
    I’ll be using the 4K monitors for video watching and that sort of stuff.


    I have no experience with that monitor so can’t say how it compares to the Dell. If I were buying an accessory monitor for a laptop, though, I’d find 21.5″ a bit small anyway. The P2415Q is as good or better than any other UHD model of the size.

    As mentioned above, USB-C connects to DP with an adaptor or even the right cable without issue. It was designed by VESA to support “DisplayPort over USB-C” in exactly this way. Thunderbolt 3 also uses a direct DP signal without issue. HDMI is designed by a completely different consortium and is best to use on its own. Adaptors do exist and some work fine, but mileage will vary at UHD bandwidth levels.


    Is there a monitor 24″ or smaller in size that is 4K and does more then 60HZ? the P2415Q is a 60hz monitor right?


    No there isn’t. All currently available UHD models are 60Hz and will not reliably run beyond that. The first model to be announced with a higher refresh rate uses DP 1.4, which your system wouldn’t support, and it is not due until later this year for a very high price – https://pcmonitors.info/asus/asus-pg27uq-144hz-4k-monitor-with-g-sync-hdr/. USB-C will also support higher refresh rates, but so far it hasn’t been used on any model for that purpose.


    I heard about that monitor last week, looks insane! Unfortunately 27″ is too big for my set up…. Oh well…


    At 4K, avoid anything below 32″. I had a 27″ monitor last year and had to scale it to 125%. This can overcome alot of issues, but becomes a problem for older programs or programs which haven’t been updated to the 21st century…

    Also, most 4K 27″ IPS panels have a seriously grainy screen effect. Either go 32″ 4K or go for 25″ 1440p till you can afford the money/space for a 32″ screen.


    It’s not a matter of affording for me, it’s a matter of my set up and my computer desk can only hold a max of 2 -25″ monitors

    I get your opinion of 4k but I want to future proof myself which may sound stupid but I dont want to have to upgrade In a couple of years to a 4k monitor so I can watch 4K movies, as I currently use my 1080p monitor for that exact purpose, plus I also use it for gaming (not PC, console)

    I saw the Dell U2515 and it looks interesting but really it’s only “2k” right?


    ‘2.5K’, although I hate this ‘K’ obsession. ‘2K’ would be 1920 x 1080 using the logic that 3840 x 2160 is ‘4K’. If you understand the constraints of scaling or use programs that play nicely with this, then I wouldn’t really worry too much about a smaller UHD screen.


    oh, I see, my early 2013″ MacBook Pro in the display settings says the screen is “2880×1880” but “looks like 1920×1200”

    I don’t know what the current MacBooks are or future ones will be.

    Finding the right monitor is driving me crazy… I don’t know if I should just hold off buying a monitor until I see what Apple might release this year in terms of their refreshed iMacs or potentially new MacBooks and then buy a monitor.

    I’m so hesitant and nervous because I bought my MacBook in July of 2013, and that fall Apple released their new MacBooks that year with PCI-SSDs with insane read/write speeds and I missed out because I wasn’t going to sell my current one…Read and write speeds then went from like 400 to 800 and now I think they’re over 1000.

    I don’t want to make a similar mistake again with monitors.



    I just bumped into this site when looking for a 4k 40″+ screen. I bought the “low cost” philips to use at work, but there is a defect that is annoying me that doesn’t seem to get tested, so maybe this post will give you a reason to include this in your tests.

    If you put up a pure technical image of 50% pixel sized checker pattern in a window, the philips starts to bleed out of proportions. The image is totally distorted horizontally! At some other hires patterns, the image may start flickering too!

    You may use the tool at dtest.cyviz.com for testing (yes that’s my tool). Click on “checker”, and adjust step to 1. Then play with colors to see if they all look nice.

    I assume the Philips issue is due to the way the LCD panel is driven by the electronics. Normally this is not a problem, but I do use a tool [Cadsoft Eagle PCB layout tool] where this effect is clearly visible due to its hires graphics fill styles.


    I assume by “low cost” Philips you’re referring to the BDM4065UC? I did actually observe something similar to this when running some of the calibration with the Spyder. I couldn’t replicate it anywhere else and didn’t feel it would affect most users. A balance needs to be struck between informing users of issues in a review and making sure they aren’t put off by issues that are actually unlikely to affect them. It’s a fine art and it’s something I have refined over the years based on user feedback and reaction to some things I’ve said. Mentioning overshoot or other pixel responsiveness issues is a prime example of where discretion needs to be exercised as a reviewer. Unwanted artifacts related to pixel inversion and voltage control is another.



    Thanks for quick answer. Yea that’s the monitor I got at my office (not there when writing). This artifact has been bothering me because I use this specific piece of software, and I will make sure my next one doesn’t have this issue (I want a 4k at home too). I do have some sympathy with what you say, but unfortunately it won’t help me to identify what monitor to buy next.
    Anyway, I hope you can find use for the test tool I pointed you to. We do use it for internal testing at cyviz.

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