Which German universities currently use field-specific dMAT Subject Modules instead of the General Academic Module?

Exactly two universities and six named tracks, as of the first India cycle. Your program choice decides your module, not your degree background, so if you are not targeting either of these two specific programs, you sit the General Academic Module regardless of your undergraduate major.

The Two Programs and Their Tracks

RWTH Aachen University uses dMAT as a selection input specifically for its MSc Battery Science and Technology in Engineering program, where applicants sit in one of five discipline-specific modules, Chemistry, Physics, Computer Science, Electrical Engineering, or Mechanical Engineering, depending on their undergraduate background, rather than the General Academic Module. Georg-August University Gottingen encourages applicants to its MSc Data Science program to sit a dedicated Data Science Subject Module, testing applied statistical reasoning and data interpretation.

An Important Note for Indian Applicants

If you are not targeting either of these two specific programs, you sit the General Academic Module regardless of what your undergraduate major happens to be; your program choice decides your module, not your degree background. Note: for Indian (non-EU/EWR) applicants specifically, RWTH Aachen requires the GRE in place of the dMAT for this program; the 80/20 dMAT weighting applies to EU/EWR applicants. Confirm which applies to you via the program's official admissions page before prioritising either test.

My Advice

If neither RWTH Aachen's Battery Science program nor Gottingen's Data Science MSc is on your shortlist, do not waste time researching the five discipline-specific modules at all; you will sit the General Academic Module regardless, so focus your preparation there instead.