XCOM: Enemy Unknown Slingshot packshot image
Little is known at this point about the DLC apart from it will be called Slingshot and will feature an extra character from the original XCOM game plus some extra missions. We will update as more information comes out.
XCOM: Enemy Unknown Slingshot GPU Performance Comparison Graph

XCOM: Enemy Unknown Slingshot GPU Analysis
Comparing XCOM: Enemy Unknown Slingshot PC system requirements to all GPUs shows that XCOM: Enemy Unknown Slingshot is going to need a graphics card that is capable of DX 9.

To get the best visual graphical experience on XCOM: Enemy Unknown Slingshot, aim to have a GPU that has at least 512 MB GPU RAM.

Most bottom end graphics cards currently available today, will probably allow you to play XCOM: Enemy Unknown Slingshot

We are advised that -50 year old graphics cards should be able to run XCOM: Enemy Unknown Slingshot , but there could be a few exceptions to this rule.

Note that most games do not officially support laptop graphics cards, but nowadays many laptop graphics solutions are capable of running modern games. Whether desktop graphics cards or laptop, try searching for your graphics card to compare against the XCOM: Enemy Unknown Slingshot graphics card requirements chart below.