Can I upgrade the logic board in this mac for a 2012 one?

So apparently, this mac is famous for its upgrades, namely, the SSD replacement, optical drive swap, 16 GB of ram and stuff. However, Im stuck trying to find a solution to the Nvdia GeForce GT 330 512 MB it has. Some tutorials on youtube have upgraded their 2011 mac books, by replacing their whole logic drive, but I haven't seen any guide that approves the same for this one. So, is it possible? And if so, can someone give me the links directly?

Finally, would it be able to support thunderbolt?