I got a nice settlement check from AMD who had to admit that their 8 core CPUs were actually 4 core CPUs with dual parallel math units. I'm pretty sure a post-launch reduction in power and performance of these cards would qualify any current owners for a refund.
Nvidia are doing something like this now advertising their CUDA TOPS as double their actual value but with a footnote telling you this is for "sparse" multiplications. Here "sparse" means each dot-product can assume half of each input vector is zero.
