Honestly, If OP went from 768p to 1440p, that would be nice "playing dumb" move. :ROFLMAO:
True, we don't have 2 VaM benchmark results to compare both GPUs, so everything is based on what OP said.
Yes, 1440p is more tanky (than say 1080p)... still even if it's only 10400F @1333 it should be...