The 7z012s and 7z015 devices provides four GTP low-power serial transceivers that can operate up to 6.25 Mb/s per transceiver. The GTX and the GTP transceivers are similar to each other except as noted in the 7 Series FPGAs GTP Transceivers User Guide (UG482). Table 1-1 (in UG482) includes a summary of differences; the GTP transceivers include a 2-byte internal datapath (but not a 4-byte path), two shared ring oscillator PLLs, and does not include the decision feedback equalization (DFE).