In general the colours should be the same for any system (laptop, pc or mac) that you plug a monitor into with no degradation as long as each system has been calibrated. There may be small differences depending on what connections and cables it uses though. The laptop says it has displayport 1.2 which should be fine for nearly all monitors unless you are going to be doing 4K 10bit+, then some monitors require the bandwidth of displayport 1.4. Last I checked very few applications actually supported a full 10bit (or more) colour workflow and you needed a workstation graphics card like a Quattro or FirePro for non directx applications. Lightroom (last time I checked) only displays 8bit colour even though it uses 16bit internal math. The need for 10bit+ monitors is very limited at the moment but hopefully will be more useful in the future.
For photo editing you will probably get the most bang for your buck from an IPS panel type monitor.
Make sure it's flicker free (does not use PWM to regulate backlight brightness).
Make sure it covers sRGB 100% for accuracy online/general digital image sharing.
Make sure it covers as close to 100% AdobeRGB as possible for accuracy in print pipelines that use AdobeRGB.
Both the i1 Display Pro and ColorMunki Display are very good pieces of hardware for monitor calibration. The tech in each one is pretty much the same, though the software differs. There's third party software for calibration that is supposed to be a bit more accurate like CalMAN (costly) and DisplayCAL (free). A lot of higher end monitors come factory pre-calibrated to varying accuracy but you should always calibrate it yourself and repeat it every so often. A lot of camera hire places will hire these out fairly cheaply, though in the long run it's probably best to buy one.
The bigger the better? For photo work this is generally true but not always practical given your work-space, viewing distance and budget. Once you get over about 27" you probably want 1440p (2560×1440) or 4K (3840 x 2160) resolution.
Refresh rate and response time don't matter that much unless you want to play games too, but getting a colour accurate monitor with a really good refresh rate and response time will almost double the cost. Good HDR is also expensive and mostly only useful for viewing HDR movies or games with HDR.
VESA mount, screen surface, menu system, adjust-ability, bezels, speakers, usb, etc. All this stuff is personal preference.
I'm sure the NEC professional monitors are very very good but you could get two monitors (my preferred workspace) for the same price that probably cover your needs. In terms of AdobeRGB, the NEC PA272W covers 99.3% and the NEC PA271Q-BK covers 98.5%.
A couple of random examples from memory: The Dell UP series (UP = ultrasharp premium aimed at professionals and most in the UP series cover 99% AdobeRGB):
100% AdobeRGB, 2560 x 1440, 27" flicker free - $523 - https://www.bhphotovideo.com …6d_27_widescreen_led.html
99% AdobeRGB 2560 x 1600, 30" flicker Free - $999 https://www.bhphotovideo.com …_30_up3017_16_10_ips.html
https://www.bhphotovideo.com …grapher_monitor_with.html
$599
These won't perform well for fast paced gaming, you would need to go for something more gaming oriented like:
Acer Predator X27 27" 120hz, low response time and 98% AdobeRGB coverage. $1,699 https://www.amazon.com …tings-tv-cm11b-20&ie=UTF8
Aorus AD27QD 27" 144Hz but it only covers 87% AdobeRGB for $583 https://www.bhphotovideo.com …7_ad27qd_144hz_1440p.html
If you google 100% adobe rgb you should be able to find lists of monitors that will work for what you need.
ps. If anyone is looking for a monitor and doesn't do much printing, you can skip the AdobeRGB coverage and save money and have more options.