Someone with access to a Radeon Fury card put it through the CompuBench suite and submitted its score to the suites online score database. The card is being run on pre-launch drivers and is simply being read as “AMD Radeon Graphics Processor” by the suite, but if you look at the info tab it does say “Fiji”, and more importantly it shows the card has 64 Compute Units.
Each Compute Unit should carry 64 cores, so that means the card would have 4096 stream cores in total. Looking at the results of the tests the Radeon Fury beats TITAN X in Ocean Surface Simulation and TVL1 Optical FLow tests. It does not performs as well in Face Detection and Particle Simulation tests.