G = 32kbps to 56kbps (i think 100kbps theoretical peak?)
E = 100kbps to 300kbps (i think 500kbps peak?)
H = HSPA+ provides speeds between 3mbps and 6mbps, peak average speeds of 12mbps on a MT4G, theoretical peak of 14-15mbps. HSPA has a peak of 7.2mbps and an average of 1000kbps to 3000kbps.