Which monitor to choose for macbook pro 13" 2015?

Question

macOS

I think to buy an external monitor for macbook pro 13 "2015 and the choice fell on DELL U2515H and DELL P2415Q .
Because the second 4k, they say that when connected via hdmi (due to its features) it gives out only 30 Hz and they say that it is noticeably sharp for system animations (I would like it to be smoother. I don’t know anything about the first one, but its resolution is lower.
Is it possible to count on a higher frequency due to DP -> Thunderbold?
Advise which one to take anyway.

Answer 1

through displayport will be 60 hertz.
which one to take depends on the needs:
the first will give a larger working area.
the second makes sense only in retina mode, which will give a cool picture, but the work area will be smaller.

Answer 2

In addition to the topic:
"On its website, Apple has published a complete list of supported resolutions and compatible Mac models for the LG UltraFine 5K monitor:
5120 x 2880 @ 60 Hz
MacBook Pro (15-inch, 2016)
MacBook Pro (13-inch, 2016, with four Thunderbolt 3 ports)
MacBook Pro (13-inch, 2016, with two Thunderbolt 3 ports)
3840 x 2160 @ 60Hz
Mac Pro (Late 2013)
MacBook Pro (Retina, 15-inch, Mid 2014) and later
MacBook Pro (Retina, 13-inch, Early 2014) and later
iMac (Retina, 27-inch, Late 2014) and later
iMac (Retina, 21.5-inch, Late 2015)
iMac (21.5-inch, Late 2015)
MacBook Air (13-inch, Early 2015)
MacBook Air (11", started 2015)
3200 x 1800 @ 60Hz
Mac mini (Late 2014)
In addition, Apple does not recommend using the UltraFine 5K as the primary display for a Mac Pro or Mac mini, as the monitor will not work until macOS boots, making it problematic to use recovery mode or Boot Picker.

Answer 3

For programming, it is better to take a widescreen monitor, because. there will be more space. This is especially true in the IDE when there are many tabs open + debugging.
I have this lg-34UC98-W and after it it is very difficult to work on another monitor.
If you doubt the purchase, then here is an interesting opinion of a specialist.

Answer 4

I have a DELL U2717 + some kind of visonic, DELL immediately with a miniDP cord, and for the second monitor I bought a miniDP-DVI cord, all this for one poppy beech pro 13'' 2013, I want to say that movies absolutely without lags do not pull, but to start different windows on two monitors and something else on the screen of the laptop itself (for example, the console), it’s quite normal, everything pulls without lags, it doesn’t heat up, it doesn’t hang.