Dell 28" 4K monitor - 30Hz at 4K


VirtualRain

macrumors 603
Aug 1, 2008
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Vancouver, BC

wildmac

macrumors 65816
Jun 13, 2003
1,167
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Yeah, better off getting their high-end 27" if you need a new monitor, and forget 4k for now.
 

deconstruct60

macrumors 604
Mar 10, 2009
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Finally some more news on the 28" budget 4K monitor from Dell
.....
TN Panel and only 30 Hz at 4K resolution...... I wonder if the Lenovo 28" 4K for $100 more will be the better option
Reports so far are that most of these 28" 'affordable' 4K models are same TN derivative panel technology. For this panel specifically
http://www.tftcentral.co.uk/news_archive/30.htm#lenovo_pro2840m

Possibly better than classic 'discount' TN panels but similar issues to a less extent off angle. (color fidelity up but angles still don't quite match IPS family. )

For many mainstream folks doing directly head-on usage it is probably going to work.

Lenovo seems to put have put in more work into the backlight and some additional features. Dell seems to be going for "most affordable" to sell in volume.
 

RoastingPig

macrumors 68000
Jul 23, 2012
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SoCal
aww man i hate TN...that sounds odd to me because i don't think they ever made 2560 x 1440-1600 tn panels
 

chfilm

macrumors 68020
Nov 15, 2012
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Germany
When do you guys expect a display like this but with 60hz?
Yes I do need workspace but not at 30hz!
 

AppliedVisual

macrumors 6502a
Sep 28, 2006
678
78
I wouldn't call this actual confirmation. Still have not seen official specs and it boggles my mind that they would release an actual desktop monitor that can't refresh at 60Hz…

This report makes me sad. :(
 

rjbenson83

macrumors regular
Dec 16, 2013
137
4
Atlanta
Does anyone have the 24" Dell 4k, thinking about getting that one if it dips below $1k, and would like to know if it plays well with the nMP.
 

chfilm

macrumors 68020
Nov 15, 2012
2,063
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Ahhh so Asus does have 60hz.. I didn't know that..

Why do they need to take this long. I need a display for my nMP in feb :(
 

deconstruct60

macrumors 604
Mar 10, 2009
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Does anyone have the 24" Dell 4k, thinking about getting that one if it dips below $1k, and would like to know if it plays well with the nMP.
" ... The same isn’t true, unfortunately, for other 4K displays on the market. Dell sent along its UltraSharp 24 Ultra HD display (UP2414Q) for this review, and unfortunately that appears to be a display that’s not supported by the Mac Pro/OS X at this point. You can get it working in SST mode at 3840 x 2160 30Hz, but forcing MST results in a 1920 x 2160 display spread across both tiles with a mess of garbled colors. ... "
http://www.anandtech.com/show/7603/mac-pro-review-late-2013/11

In conclusion of same review...

".... r. It turns out there’s a very good reason Apple only offers the Sharp PN-K321 via the Apple Store: 4K display compatibility under OS X is still a bit like the wild west at this point. I do expect that Apple will quickly fix things (and likely offer their own 3840 x 2160 and/or 5120 x 2880 panels) in the near future, but early adopters beware. ... "
http://www.anandtech.com/show/7603/mac-pro-review-late-2013/15


If only interested in 4K at 30Hz it is far less of a 'Wild West'. That is far more likely more universal. The work-arounds for 60Hz and synchronously sending two "halves" of the 4K screen to a monitor is a where the 'Wild West' kicks in.

If waiting on a Mac Pro order to ship or thinking about buying Mac Pro later it is worth not getting the 4K display early. This might clear up by April but definitely should be more info of this is a long term or short term issue by then.

The fact that "oops you might have to buy the monitor from Apple" probably doesn't' put this on their high priority fix list. I would expect the Dell 31" monitor to work before the 24" one. At least the 31" one is also a Sharp panel with some modifications wrapped around it.

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How does a 4K monitor stress the CPU? :confused:
Dependent upon how many objects put on the screen and the split of the modeling computation workload. It doesn't have to ( more MS Word windows ) but would depend upon the app.
 

theSeb

macrumors 604
Original poster
Aug 10, 2010
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Dependent upon how many objects put on the screen and the split of the modeling computation workload. It doesn't have to ( more MS Word windows ) but would depend upon the app.
Thank you. That is exactly my point. The 4K monitor has no impact on the CPU. The fact that it allows you to put more objects on the screen as a by-product is not really a good argument in my eyes. It's like saying that a pick up truck is bad for your health because it allows you to take more ice cream home from the store.
 

2128506

macrumors regular
Dec 28, 2013
178
108
Heart of Mordor
Finally some more news on the 28" budget 4K monitor from Dell

http://www.tomshardware.co.uk/dell-p2815q-28-inch-4k-monitor,news-46879.html

TN Panel and only 30 Hz at 4K resolution. Bit of a deal breaker, but I guess I should not be surprised considering the price. I really thought I could have my cake and eat it with this one. I wonder if the Lenovo 28" 4K for $100 more will be the better option
So that makes DELLs display a "content preview" one (and that is only if you're not editing "Hobbit" :) ). Just a small 4K TV, basically. Too bad.

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Its not like the days of CRTs. 30 Hz = 30 FPS V-sync cap, not the best for smooth mousing.
For some people like yours truly that would induce headaches as well.
 

Gav Mack

macrumors 68020
Jun 15, 2008
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Its not like the days of CRTs. 30 Hz = 30 FPS V-sync cap, not the best for smooth mousing.
I know. I may have bad hearing thanks to loud music as a youth but my eyes are as sensitive as ever. Cannot tolerate 1080i a lot it has to be progressive, and strip lights without diffusers do my head in. It's 60Hz or bust.
 

deconstruct60

macrumors 604
Mar 10, 2009
7,979
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Thank you. That is exactly my point. The 4K monitor has no impact on the CPU. The fact that it allows you to put more objects on the screen as a by-product is not really a good argument in my eyes. It's like saying that a pick up truck is bad for your health because it allows you to take more ice cream home from the store.
No. It is bad correlation you are trying to draw. If need a 4K monitor ( or pick up truck) then it is far more likely that you have more stuff. More stuff likely is correlated to increased load. ( more text characters not so much) but more objects that higher fidelity elements then it is increased. Primarily because trying to more faithfully model the real world.

Moving from lots of HD to UHD work is likely going to result in increased CPU workload. Or more broadly, enabling hiDPI mode (so using a virtual resolution).

Folks buying 4K monitors for giggles or bragging rights? Yeah, it isn't going to do much. Likewise anyone doing monitor consolidation ( going from 2-3 monitors down to just one super jumbo sized one. )