Help - Selecting right CUDA-GPU card for the application

my application(in Win10 X64) which perform medical image (1024*1024 Image) reconstruction(using my own C code), interpolation (my own C code), de-noising techniques(using Itk) for each images. I need to achieve a time performance of 220 Images per second.

I have selected Quadro M2000 model based on the discussion with NVIDIA Support team.

I would like to double check whether i can achieve this much performance with this model?

Could you please guide us on what is is the bench mark on selecting a model?