This message was posted on behalf of Intel Corporation
Thank you very much for joining the Intel® graphics communities.
To answer your question, yes, you will be able to use (1920 x 1080) or (2560 x 1080) on a dual display environment with Intel® HD graphics 530.
But remember that it will depend on the video ports the monitors have, the video ports the computer has and the ones you are going to use.
On the following link you will be able to see the max resolution supported depending on the video port and the Hz, please check page 35 for DVI resolution and page 42:
There are different models of ThinkCentre, so in order to verify the video ports it has, we need the complete model of it in order to check the specifications.
Any further questions, please let me know.