In this work we compare different real-time protocols for cardiac functional imaging. Image quality is assessed qualitatively and quantitatively and functional parameters are calculated from three short axis slices. All imaging methods are compared to the current ECG-gated, breathhold reference standard (BH-CINE). All real-time methods show acceptable visual image quality with only slight differences, which is supported by the quantitative analysis. The functional analysis shows slight systematic differences, but not on a statistically significant level.