[pb82]

It refers to their HD 7000 series, the predecessor of Polaris (RX 4xx and 5xx): https://en.wikipedia.org/wiki/Radeon_HD_7000_series

[spijdar]

The RX/R designation doesn't actually say much about the underlying architecture, Polaris is GCN 4, while HD 7000 is ... a mixture. Most HD 7000 cards are first gen GCN, though some are TeraScale 1/2, which would required very different driver support.

I guess it doesn't "matter" to consumers buying a product, but it is unfortunate how confusing the naming schemes are versus the underlying architecture. The R9/R8 cards were similarly a mixture of GCN 1, 2, 3, and even TeraScale.

(similarly, the RX 5xx/4xx series has GCN 1 and GCN 3 cards mixed in, in addition to the actual GCN 4 chips)

[pb82]

Thanks for the clarification, much appreciated! So it is the same mess just as with their CPU names.

[WesolyKubeczek]

Thanks, I’m really dabbling in the AMD nomenclature.

Trying to discern if my gpu is better supported by radeon or amdgpu gives me headaches.