A graphics display adapter has a row interpolator circuit connected to receive the source pixel data synchronized at a first clock rate and to interpolate groups of pixels of row at a second clock rate. A row interpolated storage device receives and retains interpolated source pixel data of each row at the second clock rate. A column interpolator circuit extracts the interpolated source pixel data at a third clock rate. The column interpolator circuit then interpolates groupings of the interpolated source pixel data at the third clock rate and transmits the destination graphic pixel data for display. The second clock rate maybe equal to the first clock rate or the faster of the first and third clock rates.