CUDA instruction cache size?

Now, I use the gtx560 nVidia graphic card.

And I’m trying to apply the CUDA to the H.264 video appliation.

For efficient programming, I wanna know the instruction cache size of a SP.

If you know about the i-cache size, let me know about it.

Thank you.

Here is a master thesis claimed

instruction cache size should be 32kb

here the link for thesis ( Optimal Loop Unrolling for GPGPU Programs)