Why not try it? Take your laptop with you to the shop, plug it in and see if you can set the resolution to 2560x1080. The shop will surely help, because they want a sale.
I expect it will work, but in any shop it would be free to try.
I have a 3 year old notebook with an internal video card. I want to buy a 2560 X 1080 monitor to connect it through HDMI port (at the moment I'm using 1920 X 1080 monitor), but some people tell me that 1920 X... is maximal resolution that an internal card like this can handle. It's all Greek to me so please can someone help me to figure out wether it will work or not.
In the properties of the video adapter I checked the button "List of all modes", maximal is 1920 X 1080. Yet some people say it is because of the monitor and should I attach a higher resolution monitor, the list will be updated. I don't know.
Here some video parameters I have no clue what is really necessary so just dump here all I could get.
Intel(R) HD Graphics
Adapter Name: Intel(R) HD Graphics
BIOS Date: 03/14/20
BIOS Name: Intel Video BIOS
Chipset Name: Intel(R) HD Graphics
Compatibility: Intel Corporation
Current Color Mode: 32 bits per pixel
Current Resolution: 1920 x 1080
Current Scan Mode: Non-interlaced
DAC Type: Internal
Driver Date: 27.5.15
Driver Version: 184.108.40.20629
INF File Name: oem0.inf
INF Section: iSNBM0
Installed Drivers: igdumd32.dll,igd10umd32.dll,igd10umd32.dll
Pixel Shader Version: 3.0
Refresh Rate: 59 Hz
Vertex Shader Version: 3.0
Video Memory: 1 171,18 MB
WDDM Supported: Yes