The results of subjective assessments comparing the compression performance of the ECM-6 to the VTM-11 with ECM-comparable settings are reported. The rate points for the tests were selected from a set of ECM simulations. The corresponding VTM bitstreams were generated using a one-time QP switch (QP+=1) within the sequence to match the VTM bitrate to the ECM. The switching points were chosen such that the ECM rate should never be higher than the VTM rate and that the distance should not exceed about 2% of the VTM rate. Two tests were conducted on the provided test set: An expert viewing test at the Mainz meeting site and a laboratory test with naïve test subjects by VABTech in Rome. It is reported that generally, the tendency of both tests is congruent with a clear visual benefit of the ECM when compared to the VTM in a significant number of test cases. For the laboratory results, reported BD rate savings indicate a benefit of about 38% for the UHD test sequences and about 32-33% for the HD test sequences on the given test set.