P_GPLL4_GFX3D
F(300000000, P_GPLL4_GFX3D, 4, 0, 0),
F(480000000, P_GPLL4_GFX3D, 2.5, 0, 0),
F(600000000, P_GPLL4_GFX3D, 2, 0, 0),
{ P_GPLL4_GFX3D, 5 },