late 2012 imac 27'' GPU upgrade questions

[karnashuk]

guys, do you think I can upgrade from Geforce 680 GTX to NVIDIA GeForce GTX 780M with 4GB of GDDR5 ?

 

[rkaufmann87]

guys, do you think I can upgrade from Geforce 680 GTX to NVIDIA GeForce GTX 780M with 4GB of GDDR5 ?

Not unless you buy a new 2013 iMac.

 

[AaronM5670]

guys, do you think I can upgrade from Geforce 680 GTX to NVIDIA GeForce GTX 780M with 4GB of GDDR5?

Yes, the GPU would be basically impossible to replace without breaking your computer - it's very hard to disassemble then put back together again and the software probably wouldn't recognise the upgrade - rendering you without a GPU - excuse the great pun there.