Magma 1.0 comptible for GeForce


I am using GeForce 8800 GT and CUDA version 2.3. I need to change the BLAS routines so I need MAGMA library but MAGMA library gives high performance with Fermi Architecture.
I need to know whether MAGMA 1.0 is compatible with my GeForce Card or I have to write my own library? and How much performance degradation is expected.

Thanks in Advance!