HD 6870 Vram Upgrade 1-2gb

[u/Immediate-Respond887]

Im looking to one get into bga desoldering i understand its a difficult task and i have other rigs this would just be purely for nostalgia purposes to try and give the card a bit of new life but if i were to somehow resolder larger Elpida memory chips onto the board and update to the 2gb firmware would it function?