To clarify, I mean a base model 27” 5K iMac.@nigelbb odd my 3.1 wont let me upgrade the version of osx, are you shore you have not hacked your macpro 3.1?
@chrissomos + i do think macmin or imac with the option of eGPU later if needed is better, did not think of the option of the base imac with the option of a eGPU down the line if needed