Based on the previous gens (since 400 series) you can expect about 20-25 % gain from one generation to the next. Traditionally the release have been: April to J

Based on the previous gens (since 400 series) you can expect about 20-25 % gain from one generation to the next. Traditionally the release have been: April to June: paper release (reads very limited supply of the top of the range). July to October: x70/x60 range (which are the main gaming GPU). November-December: rest of the range released with ample supply for the end of the year festive season. January to March: annoncement of the next generation. Rinse and repeat.