Chinese tech sites are reporting on a new variant of the Radeon RX 470 called the RX 470D. This model is based on a further-cut-down version of the Polaris 10 GPU with 1792 stream processors. AMD pairs 4GB of GDDR5 memory with this chip, just like it does on the normal RX 470. If the reasonably-reputable rumor-site Videocardz is to be believed, the new model will probably be released in China only.
Leakers have passed Videocardz some benchmarks for the new card, too. If they're valid, the 3DMark scores the site received place the RX 470D's performance ahead of the GeForce GTX 1050 Ti and behind the standard RX 470. Of course, the standard disclaimer regarding 3DMark scores applies—these indices offer only a rough idea of how the card performs in practice. The site says that XFX, Sapphire, and local vendor Dataland have already announced their respective versions of the card, so on the off chance you're in China and want an affordable Polaris 10 card, the RX 470D could be just the ticket.