https://wccftech.com/amd-radeon-rx-590-graphics-card-2560-sp/

So I heard something pretty interesting and thought I would share. AMD’s upcoming graphics card, (the Radeon RX 590 I presume) is going to have a total of 40 CUs or 2560 SPs – or so I am told. This is a source I haven’t used before so I am going to be tagging this one as a rumor for now – so take it with a pinch of salt. That said, this is something that would fit in-line very well with everything we have heard so far.

Considering the old RX 580 has 2304 stream processors and is based on the same approximate node (the 12nm FinFET,  is an enhanced version of the 14nm process, even though the name might suggest otherwise)  we are looking at a roughly 11% theoretical gain from the core count alone and some additional few percentage points because of slightly higher clock speeds. all in all, you are looking at anywhere from 10%-15% real life gain under normal circumstances. This kind of performance level is something we have already seen before, in the leaked FF XV benchmarks of the Radeon RX 590, where it fares a lot better than the RX 580, indicating it’s not in fact, the same GPU.