What is a cuda core, is it like a core on a cpu? Do ati and intel gpus have multiple cores like nvidia's cuda cores. Im confused because i cant comprehend how a gpu can have 4096 cores....
CUDA cores are new names created by nvidia previously it is known as stream processors. (amd still calls theirs as stream processors or in short SP). there are many cores in gpu but it cannot be compared directly to cores in cpu because they behave differently.
also you can't compare nvidia and ati (amd) core directly as well to compare the performance between the two because they were build based on different architecture. for example amd 7970 have 2k SP in it but it perform around the same as 680 in games which only have 1.5k SP.
if you want the details about cuda cores down to its basic you can google about it