can i use my nvidea geforce 9400 in my 27" late 2009 imac

i have a iMac 21.5-inch, Late 2009 with a NVIDIA GeForce 9400 256 MB in it. I also have a late 2009 27" model recently the graphics card of the 27" broke so I was wondering if it is possible to put the graphics card of my 21.5" in my 27" iMac so I can use it again