Poser 12 still seems to have the 32 thread limit for rendering, so assuming the cpu has hyper threading (or the amd equivalent) and as someone has stated 24 cores, ie total of 48 threads, a third of the threads would not be used. I don't know much about amd cpu's but if they make a 16 core, 32 thread with higher clock speeds you might get better performance in poser cpu rendering